Cataract Surgery
Cataract care across the Greater Toronto Area, explained honestly. This guide covers standard surgery, laser-assisted surgery and the lens choices in between. Over 20 years our surgeons have completed more than 100,000 cataract surgeries as a group, and published research on how they turned out.
What is a cataract — and what does surgery actually do?
A cataract is a gradual clouding of the natural lens inside your eye. It is not a growth or a film over the eye — it is the lens itself slowly losing its clarity, the way a clear window can frost over with time.
The lens sits just behind the coloured part of your eye (the iris) and focuses light onto the retina at the back of the eye, the way a camera lens focuses light onto a sensor. When you are young, the lens is crystal clear and flexible. With age, the proteins inside the lens slowly change and clump together, scattering light instead of focusing it cleanly. That scattering is what you experience as a cataract.
Most cataracts develop slowly, over years. Many people first notice them not as “blurry vision” but as a collection of small frustrations that build up:
- Colours look faded or yellowed, as though seen through a dull filter.
- Night driving becomes harder. Oncoming headlights flare into halos and starbursts.
- Reading needs brighter and brighter light.
- Glasses prescriptions change more often, without ever quite fixing the problem.
- Bright sunlight feels uncomfortably glary.
- Fine detail softens: faces across a room, road signs, golf balls in flight.
Cataracts are overwhelmingly a normal part of aging. By their seventies, most people have some degree of lens clouding. Some things bring cataracts on earlier: diabetes, long-term steroid use, heavy sun exposure, an eye injury, previous eye surgery, and family history. For most people, though, a cataract is simply the lens showing its age.
Not every cataract behaves the same way, either. A nuclear cataract — clouding in the centre of the lens — tends to develop slowly and dull distance vision first. A cortical cataract forms spoke-like opacities from the edge inward and is often noticed as glare. A posterior subcapsular cataract forms at the back of the lens. It can grow faster than the others, and it often disturbs reading vision and puts halos around lights — sometimes while the eye chart still looks fine. Many people have more than one type at once. That is part of why two people with the same eye-chart result can have very different experiences day to day, and why your symptoms matter as much as your test results.
What the surgery does
Cataract surgery removes the cloudy natural lens and replaces it with a clear artificial one. It is called an intraocular lens, or IOL (intraocular simply means inside the eye). The IOL stays in your eye permanently — it does not wear out, and a cataract cannot grow back, because the lens that formed it is gone.
Here is the reassuring part. Cataract surgery is the most common operation in Canada. It takes about 15 minutes per eye, and you are awake but comfortable throughout. It is also one of the safest operations there is. The overwhelming majority of patients notice clearer, brighter vision within days.
Because the cloudy lens is replaced, surgery is also a one-time chance to choose how the new lens focuses. That is why much of this page is about the lens decision. We will walk through it the same way we do in consultation: completely, honestly, and at your pace.
Can a cataract come back?
No — but a common, easily treated look-alike is worth knowing about. In some people, months or years after surgery, the thin capsule that holds the new lens in place turns hazy. Doctors call this posterior capsule opacification, or PCO. Vision gradually dims in a way that can feel like the cataract returning. The fix is a brief in-office laser treatment (YAG capsulotomy), comfortable for most people, that clears the haze in minutes, with vision typically improving within a day. It is a one-time treatment — once cleared, the haze does not re-form. If your vision ever dims again after cataract surgery, mention it to your optometrist; PCO is usually the first thing they will check for.
One page, one purpose. This guide covers the full picture of cataract surgery — when it is time, the surgical approaches, lens choices, what the experience is like, and how coverage works in Ontario. For a step-by-step walkthrough of the patient experience from referral to final follow-up, see our companion guide, Your Cataract Surgery Journey.
When is it time for cataract surgery?
There is no magic number on an eye chart that means “it’s time.” The honest answer is simpler and more personal: it is time when your cataracts are getting in the way of your life.
Decades ago, surgeons waited for cataracts to become “ripe” — dense and advanced — before operating. Modern surgery has made that thinking obsolete. Today, the decision is based on function, not on a measurement. The questions that matter are practical ones:
- Have you stopped driving at night, or do you dread it?
- Is reading, sewing or screen work harder even with good glasses?
- Do you struggle to recognize faces or follow the ball in sports?
- Have you had a near-miss, a stumble, or a fall related to vision?
- Has your optometrist told you new glasses won’t help much anymore?
If you answered yes to any of these, a surgical consultation is worth having — not because you must have surgery, but because you deserve to understand your options. Equally, if your cataracts are mild and not bothering you, the right plan may simply be monitoring. Cataracts do not damage the eye by waiting in most cases, and surgery is rarely urgent. There are exceptions. A very advanced cataract can make surgery harder, and it can get in the way of monitoring other conditions such as glaucoma or retinal disease. Your eye care team will tell you plainly if your situation calls for earlier action.
Your optometrist is your first partner
For most patients, the cataract journey begins in their optometrist’s chair. Community optometrists watch your cataracts year over year and track how much they affect your vision with glasses. They refer you to a surgeon when surgery will genuinely help, not before. That relationship matters to us. After surgery we send the results to your optometrist and share the follow-up, so your long-term eye care stays with the person who knows you.
If you suspect your cataracts are progressing, the single best first step is a visit to your optometrist. Ask them directly: “Are my cataracts at the point where a surgical opinion makes sense?” If the answer is yes, ask for a referral to Uptown Eye Specialists.
A note on “too early” and “too late.” It is almost never too late for cataract surgery — even very dense cataracts can be removed successfully, though they may require additional surgical planning. And it is only “too early” if the cataract is not yet affecting your life. The decision belongs to you, made with complete information and zero pressure. That is how we practise.
Two surgical approaches — plus a precision add-on
Every cataract surgery accomplishes the same goal: the cloudy lens comes out, a clear lens goes in. What differs is how the key steps are performed. At Uptown Eye, we offer both established approaches — and we will tell you honestly which one fits your eyes.
You may have read about “three types of cataract surgery.” The clearer way to think about it is two surgical approaches — standard and laser-assisted — each of which can be paired with an optional digital precision-guidance system. Here is what each actually means.
Standard cataract surgery
Manual phacoemulsification (CAT)
This is the technique behind cataract surgery’s track record. The surgeon makes a tiny opening in the eye by hand, then opens the thin capsule around the lens. An ultrasound probe (phacoemulsification) gently breaks up the cloudy lens and removes it. The new lens is folded, slid through the same small opening, and unfolds into place. Stitches are usually not needed.
Every one of our surgeons has done this operation thousands of times, and it delivers excellent results. For many patients it is exactly the right choice, and we will say so plainly when it is.
Laser-assisted cataract surgery
ReLACS — laser-assisted cataract surgery (refractive means it also shapes how your eye focuses, not just removes the cataract)
In laser-assisted surgery, a femtosecond laser — a laser that fires in pulses lasting quadrillionths of a second — does several of the most delicate steps, guided by a computer. It makes the small openings in the eye, opens the thin capsule around the lens, and softens and divides the cataract before it is removed. The surgeon then finishes the removal and places the new lens, often using less ultrasound energy than standard surgery needs.
Our group has studied this approach in depth — including a published comparison of laser-assisted and manual surgery in more than 3,000 of our own cases, among the most extensive published series in Canada. Learn more on our dedicated ReLACS page How laser cataract surgery works →.
RIGS: real-time intraoperative guidance
RIGS is a digital guidance system. During the operation it shows live alignment information in the surgeon’s view, a little like a heads-up display in an aircraft. It matters most when lining up a lens that corrects astigmatism — blur caused by an unevenly curved cornea, the clear front window of the eye. With those lenses, being a few degrees out of line changes the result. RIGS is not a separate type of surgery: it is a precision layer that can be added to either approach, so your plan may be standard surgery with RIGS (CAT+RIGS) or laser-assisted surgery with RIGS (ReLACS+RIGS). Read more on our RIGS page.
Which approach is right for you?
It depends on your eyes — genuinely. Laser assistance helps most in particular situations. Denser cataracts, where using less ultrasound energy is gentler on the cornea. Eyes getting an astigmatism-correcting or advanced lens, where a precise opening in the capsule helps the lens sit exactly where it should. And eyes with more complex anatomy. In a routine eye getting a standard lens, manual surgery in experienced hands produces outstanding results, and choosing it is in no way settling for less.
We want to be unambiguous about one thing: a more advanced technology is not automatically a better choice for you, and we will never frame it that way. In your consultation, your surgeon will explain which approach makes sense for your eyes, your lens choice and your goals, and whether the RIGS add-on is worth it. You will hear the reasoning in full. The decision is yours.
The acronyms, decoded
Cataract care comes wrapped in abbreviations, so here is a plain-language key you can refer back to. CAT is simply our shorthand for standard manual cataract surgery. ReLACS stands for refractive laser-assisted cataract surgery — the femtosecond-laser approach. RIGS is the real-time intraoperative guidance system, the digital alignment overlay that can accompany either approach. IOL is the intraocular lens, the clear artificial lens implanted in every cataract surgery regardless of approach. And ISBCS — Immediate Sequential Bilateral Cataract Surgery — means both eyes treated on the same day, covered in detail further down this page. If a term ever appears in your paperwork without an explanation attached, ask; translating is part of our job.
Choosing your lens: three decisions, not one
Because your cloudy lens is replaced with a new one, cataract surgery is a once-in-a-lifetime chance to decide how your new lens focuses. Most explanations turn this into a confusing catalogue of lens brands. We teach it the way we counsel it: as three independent decisions — three spheres — each with honest trade-offs.
Before the three spheres, the baseline — and it deserves to be stated clearly. The standard OHIP-covered monofocal lens is a complete, excellent lens. It restores clear, sharp vision at one chosen distance (usually far), and pairs naturally with glasses for reading. Tens of thousands of our patients have chosen it and see beautifully. Every decision below starts from that excellent baseline; everything beyond it is an optional lifestyle choice, never a necessity.
Fixed lens or Light-Adjustable Lens?
Is the lens power locked in before surgery — or fine-tuned after your eye heals?
Every conventional lens has its power fixed before surgery, worked out from careful measurements of your eye. That is true of the standard monofocal (single-focus) lens and of the most advanced multifocal (several focus points) lens alike. The calculations are very good, and most eyes land close to the target. But every eye heals a little differently. A small number of people end up slightly off their intended prescription, and sometimes need glasses or a touch-up they had hoped to avoid.
The Light-Adjustable Lens (LAL) takes a fundamentally different path: its power is adjusted after surgery, once your eye has healed and your true prescription can be measured rather than predicted. Over a series of brief light treatments in the clinic, which most people feel nothing during, the lens is reshaped to your real-world vision — and you can even test-drive different focus settings before locking one in. The trade-offs are real and worth knowing: the adjustment period involves several extra visits over a few weeks, and special UV-protective glasses must be worn until the final lock-in. If you want the closest possible match to your target, the LAL works differently from every other lens. That matters most after previous laser vision correction, where the usual calculations are less predictable. Read more in the LAL section of our lens options guide.
Customizing to your cornea’s shape — or not
Should your surgery also correct your astigmatism?
Astigmatism means the front window of your eye, the cornea, is shaped a little more like the side of a rugby ball than a soccer ball. Light then focuses unevenly, which blurs vision at every distance. Many people have some astigmatism, and a standard lens does not correct it; you would simply continue wearing glasses that do, exactly as you may today. That is a perfectly good outcome.
If you would rather build the correction into the surgery itself, two tools exist, and they can be used alone or together. Limbal relaxing incisions (LRI) are precise, tiny incisions at the edge of the cornea that relax its steeper curve — well suited to smaller amounts of astigmatism. A Toric IOL (a lens with the astigmatism correction built into it) is lined up along a precise angle inside your eye, and suits larger amounts. This decision stands apart from everything else on this page. Astigmatism correction can go with any lens family and either surgical approach. The trade-off is mainly about planning. A toric lens depends on accurate alignment, which is one reason the RIGS guidance system exists, and a very small amount of astigmatism may not be worth correcting at all. Your measurements will tell the story, and we will walk you through them.
Progressively reducing your dependence on readers
How much near and intermediate vision do you want built into the lens itself?
A standard monofocal lens focuses sharply at one distance. Most patients set it for distance and use reading glasses for near work — a simple, reliable arrangement. The third decision sphere asks how far beyond that you want to go. Think of it as a ladder, where each step extends your range of clear vision without glasses a little further:
Enhanced single focus (ESF and ESF+) lenses are refined single-focus lenses. They still have one point of focus, but the optics stretch useful vision a little way into the middle distance: the dashboard, the kitchen counter, the computer at arm’s length. They keep the crisp, low-compromise optics of a standard single-focus lens. Extended depth of focus (EDOF) lenses go further. They create one continuous stretch of focus from distance through the middle range, and most people still use reading glasses for fine print.
Extended range of focus (ERF) lenses are often called trifocal or full-range lenses. Trifocal means three focus points. They aim for the widest spread of vision: distance, middle range and near. Many people who choose them use glasses very little in daily life. The honest trade-off is this. These lenses split the light entering your eye between several focus points, so some people see halos or glare around lights at night, especially in the first few months. Most adapt well; a small number find it bothersome. Anyone considering an ERF lens deserves to hear that plainly before choosing, and from us, they always will.
The Light-Adjustable Lens approaches the same goal from a different angle. The LAL does not split light. It is customized after your eye heals, usually with blended vision: one eye tuned for distance, the other for nearer tasks, in a balance you try out and approve before it is locked in. The result is tailored to you. Because the optics stay single-focus in character, the lens does not create the ring-shaped glare pattern that multi-focus lenses can. The honest caveat is that every brain accepts blended vision differently. Most people adapt readily, some prefer less of a difference between the eyes, and the adjustment period is what finds your answer instead of guessing at it.
Uptown Eye Specialists was the first in Canada to combine the Light Adjustable Lens with laser-assisted surgery — a pairing we call UltraView VISION® (LAL + ReLACS) — bringing together laser precision in the operating room with after-healing customization in the clinic.
How the three spheres come together. In your consultation, your surgeon works through each of the three decisions with your own measurements in hand. Fixed lens or adjustable. Astigmatism correction or not. And how far up the reading ladder suits your daily life, your eyes and your tolerance for trade-offs. There is no single best lens — there is a best lens for you, and our role is to make sure you understand the options well enough to choose it yourself. For a deeper dive into every lens family, visit our complete lens options guide.
What to expect, from consultation to clear vision
Cataract surgery is a short procedure wrapped in careful preparation and gentle follow-up. Here is the arc of the experience — and for the full step-by-step walkthrough, see Your Cataract Surgery Journey.
| 1 | ConsultationA full examination confirms your cataracts and rules out other causes of changing vision. It also opens the conversation about approaches and lenses. Bring your glasses, a list of your medications, and your questions — all of them. Our first-visit guide covers everything to bring and expect. |
| 2 | Biometry & planningWe measure your eye precisely: its length, the curve of the cornea, and any astigmatism. Those numbers set your lens power and finish your surgical plan. They also depend on a healthy tear film, so marked dry eye is sometimes treated first to make the measurements trustworthy. That small delay protects your result. This is where the three lens decisions become a concrete, personalized plan you have reviewed and approved. |
| 3 | Surgery dayPlan for a few hours at the surgical centre, even though the surgery itself takes about 15 minutes per eye. Your eye is numbed with drops. You are awake but relaxed, and you will not see the surgery happening. Most people describe lights and colours. You will need someone to drive you home. There is no patch over the eye in most cases, just a clear shield for sleeping. |
| 4 | Drops & early recoveryMedicated eye drops protect against inflammation and infection over the first weeks. Many patients notice brighter, clearer vision within a day or two. Mild grittiness, light sensitivity, or fluctuating focus in the first days is normal. Most everyday activities resume quickly; swimming, eye rubbing, and heavy straining wait a little longer, per your surgeon’s instructions. |
| 5 | Healing & the second eyeVision usually settles fully in about four to six weeks. That is when any new glasses prescription is finalised. If both eyes need surgery, the second eye is usually booked a short time after the first. Where it suits you and your eyes, both can be done on the same day (see ISBCS, below). Follow-up care is co-managed with your optometrist whenever possible. |
Is it painful? Almost everyone carries this question quietly, so here is the direct answer: cataract surgery is not painful. The eye is fully numbed, and medication keeps you calm and comfortable. The most common complaint afterwards is a day or two of scratchiness, more like an eyelash in the eye than anything resembling pain. The dread is nearly always worse than the day itself.
Safety, risks, and honest expectations
Cataract surgery’s safety record is among the best of any operation, anywhere — the overwhelming majority of patients come through smoothly and see better. But informed consent means hearing the other side too, so here it is, plainly. As with any surgery, complications are possible, though they are uncommon. Infection inside the eye is rare but serious, which is why the drops and the check-up visits afterwards matter. Swelling of the retina or the cornea can blur vision for a time and usually settles with treatment. In a small number of eyes, the capsule that holds the lens is damaged during surgery, which sometimes means extra steps or a second procedure. Other eye conditions matter too. Advanced glaucoma, macular degeneration or diabetic eye disease can limit how much vision surgery alone can restore, and your surgeon will say so plainly before you decide.
Two practical recovery questions deserve direct answers. Driving: you may resume once your vision meets Ontario’s legal driving standard — for many patients that is within a few days of surgery, confirmed at your follow-up rather than guessed at. Daily life: reading, screens, television, walking and light activity are usually fine almost straight away. Gentle bending and lifting can restart within days. Swimming pools, hot tubs, dusty places and eye makeup wait a week or two. Your written instructions set out your own timeline, and your care team is a phone call away if anything feels wrong.
Questions worth bringing to your consultation
The best consultations are conversations, not lectures — and the patients who get the most from them arrive with questions written down. Some worth considering:
- Which surgical approach do you recommend for my eyes, and why?
- Do I have astigmatism worth correcting — and how much?
- What would my vision realistically be like with the standard lens?
- Which lens trade-offs matter most for how I actually live — my driving, reading, hobbies, and work?
- Am I a candidate for same-day surgery on both eyes?
- Do any of my other eye conditions affect what surgery can achieve?
- How will my optometrist be involved after surgery?
There are no wrong questions, and no question signals a “difficult patient.” The opposite is true: an engaged patient who understands their plan is exactly who we want in our chairs.
OHIP and your options
Let us start with the most important fact: cataract surgery is an OHIP-insured procedure. Every medically necessary cataract surgery in Ontario — the consultation, the standard surgery, the standard lens, and the medical follow-up — is covered by your provincial health insurance.
That standard pathway is not a lesser pathway. Standard cataract surgery with a standard monofocal lens is the same operation that has restored sight to millions of Canadians, performed by the same surgeons with the same care. A patient who chooses the fully insured route receives complete, excellent treatment, full stop.
Beyond the standard pathway, additional options exist — the laser-assisted approach, the precision-guidance add-on, astigmatism correction, and the advanced lens families described above. These are optional enhancements, chosen by patients for lifestyle reasons: less dependence on glasses, astigmatism built into the correction, or after-healing adjustability. They are never required for a successful surgery, and choosing none of them is a perfectly good decision that many of our patients make.
Your consultation is where these options meet your own eyes. Your surgeon will go through what applies to you, what does not, and what each choice would involve, working from your actual measurements rather than generalities. You will leave with a clear, written plan before anything is decided, and all the time you need to think it over. No option is ever presented with pressure, and “the standard pathway, please” is an answer we respect completely.
Why we counsel this way
You may notice this page reads differently from much of what you will find searching “cataract surgery.” That is deliberate. Our counselling culture was built in the operating room over two decades. What we learned there is simple: the only good decision is an informed one. Patients who choose with complete information are the happiest with what they chose. So every option on this page comes with its trade-offs attached. The advanced lens with the widest range carries a night-glare consideration; the adjustable lens carries extra visits; the standard pathway carries reading glasses. None of those is a flaw — they are simply the honest shape of each choice, and you deserve to see all of it before deciding.
Our commitment: complete information, zero pressure. You will always hear the trade-offs of every option — including the option of doing nothing extra at all, and the option of doing nothing yet.
Where and when you have surgery — decided by fit, not fear
You may have encountered cataract marketing built around wait times. We want to set that aside at the outset: in our practice, wait times are similar whichever options you choose, and we never use wait times to sell anything.
The order we follow is deliberately the reverse of a sales pitch. First we work out which technology fits your eyes: the surgical approach, the lens, and any add-ons that genuinely suit your anatomy and your goals. Only then do location and timing come up. They follow from where that technology is available and what is convenient for you. Fit first; logistics second; pressure never.
In Ontario, cataract surgery is performed in two kinds of settings: hospital operating rooms and dedicated surgical clinics. Both are appropriate, safe settings staffed by qualified surgical teams. They differ mainly in scheduling capacity and the range of technology on site — and those differences are worth understanding honestly.
Hospital-based surgery
- Operating days are usually set days each week, shared across surgical specialties.
- Manual (standard) cataract surgery.
- A smaller selection of lens options on site.
- A familiar hospital setting that many patients value.
- Fully appropriate for patients choosing the standard pathway.
Clinic-based surgery (our private OR)
- Operating 7 days a week, including weekend surgery dates for patients who prefer them.
- Both laser-assisted and manual approaches under one roof.
- The full range of technology and lens options: ReLACS, RIGS, toric, EDOF, ERF and the Light-Adjustable Lens.
- Both eyes on the same day (ISBCS, Immediate Sequential Bilateral Cataract Surgery), offered routinely for convenience.
- Sedation through a drip, with an anaesthetist monitoring throughout, as our standard of comfort in the private operating room.
How the setting is chosen
Access to our private operating room is driven by technology and convenience — not by premium tiers. If your surgical plan involves laser assistance, an advanced lens, or after-healing adjustability, the clinic is simply where that equipment lives. If both eyes need surgery and same-day bilateral surgery suits you, the clinic is where ISBCS is routinely offered. And if weekend scheduling fits your life better than a weekday, the clinic’s seven-day calendar makes that possible.
On comfort: every surgery in our private operating room is done with sedation through a drip and continuous monitoring by an anaesthetist. We state that simply as our own standard. It is how we think surgical comfort should be handled, especially for anyone anxious about an eye operation, and patients tell us often that it mattered to them.
Whichever setting your plan points to, the decision will be explained, not asserted. Your surgeon will tell you why a given location fits your technology choices and your schedule — and if the hospital pathway serves you equally well, you will hear that too.
Experience you can count, evidence you can read
Numbers like these accumulate one carefully performed surgery at a time, over more than two decades. But volume alone is not the point — what we do with it is. Our group studies its own outcomes and publishes them in peer-reviewed journals, so the claims on this page rest on evidence anyone can read.
Refractive Laser-Assisted Cataract Surgery versus Conventional Manual Surgery: Comparing Efficacy and Safety
A published series of more than 3,000 cases, among the most extensive published in Canada. It compared laser-assisted and conventional manual surgery. The benefit of the laser-assisted approach looked more pronounced in more complex eyes.
Feasibility of an Artificial Intelligence Phone Call for Postoperative Care Following Cataract Surgery in a Diverse Population
Our study of an AI-assisted follow-up phone call guiding patients through recovery after cataract surgery across a diverse patient population — part of our ongoing work to make post-operative care more accessible and responsive.
Depth behind the surgery
Cataract surgery occasionally meets complexity — a cornea with prior disease, a retina that needs attention, glaucoma that must be managed alongside the cataract. Our practice includes fellowship-trained cornea, retina, and glaucoma specialists on-site, so when complexity arises, the expertise is already in the building rather than a referral away. Meet the full team on our physicians page.
The milestones continue. From one of the country’s most extensively published laser-cataract programs, to becoming the first in Canada to combine the Light Adjustable Lens with laser-assisted surgery as UltraView VISION®. The approach has stayed the same throughout: adopt carefully, measure honestly, publish openly, and let patients decide with complete information.
For referring optometrists
Community optometrists are the backbone of cataract care, and we built our referral pathway around that partnership. Referrals are accepted by fax or through our referral portal, with consultation reports returned promptly and a standing commitment to co-managed post-operative care — your patient comes back to you, with complete surgical documentation, for their long-term eye care.
Our co-management commitment is specific, not aspirational. You receive the consultation findings after the assessment. After surgery you receive the operative summary, including the approach used, the lens implanted and its parameters, along with the post-operative plan. That way the record in your office is as complete as ours. Patients who choose blended vision or extended-range optics are counselled with their long-term optometric care in mind, and we are always available to discuss a case before you refer. Visit our referring doctors page for referral forms, co-management protocols, and direct contact lines for urgent cases.
Common questions about cataract surgery
Cataract surgery removes the cloudy natural lens inside your eye and replaces it with a clear artificial lens called an intraocular lens (IOL). Through a tiny opening, the surgeon gently breaks up the cloudy lens and removes it. This is done with ultrasound, with or without help from a femtosecond laser. The new lens is then unfolded into the same position. The procedure typically takes around 15 minutes per eye, is performed while you are awake but comfortable, and usually requires no stitches. It is the most commonly performed surgery in Canada and one of the safest in all of medicine. Because the cloudy lens is gone permanently, a cataract cannot return.
There is no required level of severity — the modern standard is function, not a number. It is time to consider surgery when cataracts interfere with your life: night driving becomes difficult, reading needs ever-brighter light, glare bothers you, or new glasses no longer help. If your cataracts are mild and not limiting you, monitoring is a perfectly good plan; waiting rarely harms the eye. Your optometrist is your first partner here — they track your cataracts year over year and refer you for a surgical opinion when surgery will genuinely help. If you are unsure, ask your optometrist directly whether a surgical consultation makes sense for you now.
The clearest way to understand it is two surgical approaches, each available with an optional precision add-on. Standard surgery (CAT) uses manual phacoemulsification — an ultrasound probe breaks up and removes the cloudy lens. It delivers excellent results. Laser-assisted surgery (ReLACS) uses a femtosecond laser to perform the incisions, capsule opening, and initial lens division with computer-guided precision before the surgeon completes the removal. Either approach can add RIGS, a digital guidance system that overlays live alignment tracking into the surgeon’s view — so your plan may be CAT, CAT+RIGS, ReLACS, or ReLACS+RIGS. Which combination fits your eyes is determined in consultation.
It is a fair question, and we answer it with evidence rather than opinion. Our group published a comparison of laser-assisted and manual cataract surgery in the American Journal of Ophthalmology. It covers more than 3,000 of our own cases, among the most extensive series published in Canada. The laser does the most delicate steps with computer guidance, and usually needs less ultrasound energy. Our data pointed to the benefit being clearest in more complex eyes, and with advanced lenses that depend on precise positioning. Equally honestly: standard surgery in experienced hands is excellent, and for many routine eyes the difference may not matter. The choice is individual — we lay out the evidence for your eyes and let you decide. Learn more on our ReLACS page.
Yes. Cataract surgery is an OHIP-insured procedure in Ontario. The consultation, the standard surgery, the standard lens and the medical follow-up are covered by your provincial health insurance. That standard pathway is complete, excellent care. Beyond it, optional enhancements exist: laser assistance, precision guidance, astigmatism correction, and advanced lens families that reduce dependence on glasses. These are lifestyle choices, never requirements, and choosing none of them is a decision we fully respect. How the options apply to your individual eyes is discussed transparently in your consultation, where you will receive a clear, written plan before anything is decided — with complete information and zero pressure.
We teach lens selection as three independent decisions. First: fixed or adjustable — every conventional lens has its power set before surgery, while the Light-Adjustable Lens is fine-tuned after healing, when your true prescription can be measured. Second: whether to correct your astigmatism within the surgery, using limbal relaxing incisions and/or a Toric lens — or keep correcting it with glasses. Third: how much freedom from reading glasses to build in. That is a ladder from ESF to ESF+ to EDOF to ERF (the widest range, with a night-glare trade-off some patients notice) or the LAL (blended vision, tailored after your eye heals — though people accept blended vision differently). The standard OHIP lens is the excellent baseline all three start from. See our lens options guide.
Yes. Immediate Sequential Bilateral Cataract Surgery (ISBCS) — both eyes treated in the same visit, as two separate, fully sterile procedures — is offered routinely at Uptown Eye for patient convenience. The appeal is practical: one surgical day instead of two, one recovery period, one set of arrangements for drivers and time off, and no in-between stretch where the two eyes see differently. ISBCS suits many patients well, particularly those travelling a distance, balancing caregiving, or simply preferring to be done in one go. It is not right for every eye — certain conditions favour operating one eye at a time — and your surgeon will tell you honestly which applies to you.
Cataract surgery is not painful. You are awake but relaxed: in our private OR, every patient receives IV sedation with continuous anesthesiologist monitoring, and the eye is completely numbed with drops. Most patients describe seeing soft lights and colours, nothing more, and the procedure takes around 15 minutes per eye. Afterwards, expect a day or two of grittiness or light sensitivity — more like an eyelash in the eye than pain. Medicated drops protect the eye over the first weeks, many patients notice clearer vision within days, and most daily activities resume quickly. Vision stabilizes fully over four to six weeks, and driving typically resumes once your vision meets the legal standard — often within days, confirmed at follow-up.
Start with wait times, since that is what marketing usually leads with: in our practice, wait times are similar whichever options you choose, and we never use wait times as a sales lever. The real decision factors are, first, which technology fits your eyes — and second, scheduling. Hospitals usually operate on set surgical days each week, with manual surgery and a smaller selection of lenses. Our clinic operates seven days a week, including weekends. It offers both laser-assisted and manual approaches, carries the full range of lens options, and routinely offers same-day surgery for both eyes (ISBCS). We decide technology fit first, then let location and timing follow from availability and convenience — never the other way around.
We welcome cataract referrals from community optometrists across the Greater Toronto Area, and our pathway is built to respect your relationship with your patient. Referrals can be sent by fax or through the referral portal on our referring doctors page, where you will also find referral forms and co-management protocols. Consultation reports are returned promptly after assessment and after surgery, and we are committed to co-managed post-operative care: your patient returns to you, with complete surgical documentation, for their long-term eye care. For urgent cases or questions about a referral in progress, direct contact lines are listed on the referring doctors page.
Medically reviewed by the Medical Advisory Council at U Vision Group. Last reviewed 20 September 2026.
Medical disclaimer. This page is for general educational purposes only and is not medical advice. It is not a substitute for an assessment, diagnosis or treatment from a qualified eye care provider. Every patient is different, and the information here may not apply to your situation. Any outcomes described are general and are not a guarantee of results. If you have questions or concerns about your eyes or vision, please speak with a qualified eye care professional or book an assessment with us.
Ready to understand your options?
Ask your optometrist about a referral — or contact us to learn more. Either way, you’ll receive complete, honest information about your eyes and your choices, with all the time you need to decide. We see cataract patients across multiple Ontario locations throughout the Greater Toronto Area.
From our journal.
No pressure to decide today — these explain the condition, the options, the limits, and what to actually expect.