Frequently Asked Questions

Amblyopia treatment is most effective before age 7-8, while the visual system is still developing. Some improvement is occasionally still possible in older children, but outcomes are generally better the earlier treatment begins -- which is why early screening matters so much.

AMD affects central vision -- needed for reading, recognizing faces, and driving -- but it does not typically cause complete blindness, since peripheral vision is usually preserved.

Yes, an acute angle closure attack is a true eye emergency. Eye pressure can rise dramatically within hours, and vision loss can become permanent if not treated promptly. Sudden eye pain with blurred vision and halos around lights should be evaluated immediately, not at a routine appointment.

Open angle glaucoma develops gradually and silently over months to years, with no pain and usually no early symptoms. Angle closure glaucoma, especially in its acute form, can develop suddenly with severe eye pain, blurred vision, and halos around lights -- it's a true emergency requiring same-day treatment.

Good blood sugar control significantly slows progression, but it doesn't eliminate risk. Annual dilated retina screening is still recommended for everyone with diabetes, regardless of control.

Most patients can resume driving within a few days, once vision has stabilized and any temporary blurriness has cleared. Your surgeon will confirm this is safe for you specifically at your first post-operative check, usually the day after surgery.

The price difference reflects the lens's capabilities. Monofocal lenses, the most basic option, focus light clearly at one distance, usually far, so reading glasses are still needed. Premium lenses (multifocal, trifocal, toric) use more advanced optical designs to correct additional ranges of vision or astigmatism, which is why they cost more. The right choice depends on your visual goals and lifestyle, not simply on price.

It depends on your lifestyle and visual priorities. Monofocal lenses give excellent distance vision but usually still require reading glasses. Multifocal or trifocal lenses reduce dependence on glasses across distances. Toric lenses additionally correct astigmatism. This is best decided after a detailed discussion of your daily visual needs.

Most patients notice a dramatic improvement in vision within 24 hours. Full healing of the eye typically takes a few weeks, during which you'll use prescribed eye drops and attend a couple of follow-up visits.

No -- the two eyes are typically operated on separately, usually a week or two apart. This allows the first eye to heal and gives you a chance to experience the visual improvement before deciding on lens preferences for the second eye, if needed.

No. Cataract surgery is performed under topical anesthesia (numbing eye drops), so the procedure itself is painless. Most patients feel only mild pressure during the surgery.

There's no need to wait until a cataract is "ripe." Surgery is typically recommended once the cataract starts affecting your daily activities -- driving, reading, or recognizing faces -- rather than at a fixed stage of clouding.

It's common for prescriptions to change as a child's eyes continue growing, particularly with myopia, which often progresses through the school-age years before stabilizing in the teens or early adulthood. Regular re-checks ensure the prescription stays current.

Generally every 1-2 years through school age, or annually if glasses are already needed, since prescriptions can change as a child grows. Your eye specialist can recommend a more specific schedule based on your child's individual findings.

For cataracts significantly affecting vision, surgery is often recommended within the first weeks to months of life, since the visual system's critical developmental window is brief. Your pediatric eye specialist will advise on the specific timing based on how much the cataract is affecting vision.

They share the same basic feature -- a clouded lens -- but the urgency and causes are very different. Age-related cataracts develop gradually and surgery timing is flexible. Congenital cataracts, when significant, need prompt treatment in infancy to avoid permanently affecting visual development.

The evidence for blue light filtering specifically is mixed. What reliably helps is correcting any underlying refractive error, taking regular visual breaks, and optimizing your screen setup -- these address the actual mechanisms behind digital eye strain more directly.

Early-stage changes can often be stabilized, and diabetic macular edema can improve meaningfully with anti-VEGF treatment. However, damage from more advanced disease is frequently permanent, which is why annual screening matters even without symptoms.

No. Dilating drops cause temporary light sensitivity and blurred near vision for a few hours, but the examination itself is painless.

Yes. Blink rate drops significantly during screen use, which reduces how often the tear film is refreshed across the eye surface. This is one of the most common contributing factors to dry eye symptoms in people who spend long hours on screens.

Allergies typically cause itching as the dominant symptom, often alongside sneezing or a stuffy nose, and tend to flare seasonally. Dry eye disease more often causes a gritty or burning sensation without significant itching, and tends to be persistent rather than seasonal. An eye exam can confirm which -- or whether both are present together.

Dry AMD is more common and progresses gradually, with thinning of the macula over time. Wet AMD involves abnormal blood vessel growth and fluid leakage, and can progress much faster -- it's treated with anti-VEGF injections.

Generally every 1-2 years for adults with no known eye conditions, or annually if you have risk factors like diabetes, a family history of eye disease, or are over 40. Children and anyone with an existing eye condition may need more frequent checkups as advised by their eye specialist.

It typically includes a vision and refraction test, an eye pressure check, evaluation of the tear film and eye surface, and a dilated examination of the retina and optic nerve. It's painless and usually takes well under an hour.

A general guideline is around age 3-4, or sooner if there's a family history of eye conditions, a noticeable concern like squinting or eye misalignment, or any visible abnormality. Newborns are also screened for certain conditions shortly after birth as part of routine care.

No -- glaucoma cannot be cured, and any vision already lost to it cannot be restored. However, it can be effectively managed. With consistent treatment and monitoring, most people with glaucoma retain useful vision for life. This is exactly why early detection matters so much: treatment preserves what you have, it doesn't reverse what's already gone.

Take the missed dose as soon as you remember, unless it's almost time for your next one, in which case skip it and resume your normal schedule -- don't double up. Consistency matters more than any single missed dose, since glaucoma drops work by keeping eye pressure controlled over time. If you're missing doses often, it's worth mentioning at your next visit, since there may be a more convenient option.

Having a parent or sibling with glaucoma meaningfully increases your own risk, and is one of the clearest reasons to begin regular screening, even well before any symptoms would appear. This is especially important since glaucoma itself typically causes no symptoms until vision is already affected.

No. Vision lost to glaucoma is permanent. Treatment can only preserve the vision you currently have and prevent further loss -- it cannot reverse damage that has already occurred. This is why early detection matters so much.

Generally every 1-2 years after age 40, or annually if you have risk factors like a family history of glaucoma, diabetes, or high blood pressure. Your eye specialist can recommend a more specific schedule based on your individual risk and any prior findings.

Because it typically causes no pain and no noticeable symptoms in its early and even moderate stages. Peripheral vision is lost so gradually that most people don't notice until a significant amount has already been affected -- by which point that loss is permanent.

Generally, LASIK is recommended once your prescription has been stable for at least a year, which typically isn't reliably the case until the late teens or early twenties. There's no strict upper age limit, though age-related changes like presbyopia or early cataracts are taken into account during your evaluation.

Generally, candidates have a stable glasses or contact lens prescription for at least a year, are 18 or older, have healthy corneas, and don't have significant dry eye disease or certain corneal conditions. The only way to confirm candidacy for certain is a detailed evaluation including corneal mapping.

Some patients notice mild glare or halos around lights at night in the initial weeks after surgery, which typically improves as healing progresses. This is discussed during your candidacy evaluation, since certain corneal characteristics can make this more or less likely in your specific case.

If LASIK isn't right for you, you'll be told clearly during your evaluation, along with alternatives that may suit you better -- such as glasses, contact lenses, or other procedures depending on your specific eyes.

The procedure itself is not painful -- numbing eye drops are used throughout. Many patients notice significantly improved vision within 24 hours, and it's a same-day outpatient procedure with no stitches.

Myopia control refers to specific approaches aimed at slowing the progression of nearsightedness during childhood, rather than just correcting it with standard glasses. Whether it's appropriate depends on your child's age, current prescription, and how quickly it's been changing -- best discussed directly with your eye specialist.

Neuro-ophthalmology focuses on vision problems that originate in the optic nerve or the brain's visual pathways, rather than the eye itself. It requires specialized training to recognize patterns that don't fit a typical eye diagnosis, often working alongside neurology when a broader condition is suspected.

Yes. Several common conditions, including glaucoma and early diabetic eye disease, typically cause no symptoms in their earliest and most treatable stages. A comprehensive checkup is often the only way to catch these before they progress.

Most people experience substantial visual recovery over several weeks, even without treatment, though the extent varies by individual. Because optic neuritis can sometimes be linked to an underlying neurological condition, evaluation and follow-up are still important even as vision improves.

The headache isn't from the eye itself -- it's from the same raised pressure around the brain that's causing the optic nerve to swell. This is often worse in the morning or with coughing and straining, both of which can further increase pressure around the brain temporarily.

If the underlying cause is identified and treated promptly, vision often recovers well. However, prolonged or severe optic nerve swelling can cause permanent vision loss if left untreated, which is why papilledema is always evaluated urgently rather than monitored casually.

No. The original clouded lens was already removed during cataract surgery. This is a separate clouding of the capsule that holds your artificial lens in place, and it's unrelated to getting a new cataract.

With a YAG laser capsulotomy -- a quick, painless outpatient procedure with no incision. Most patients notice clearer vision within a day, and it rarely needs to be repeated.

No referral is needed. You can book a retina evaluation directly.

Annually, even if your blood sugar is well-controlled and you have no symptoms. Diabetic retinopathy can develop silently, and early changes are far easier to manage than advanced ones.

Yes. While the goals differ slightly from childhood treatment -- focusing more on alignment, double vision, and appearance rather than preventing amblyopia -- squint in adults is treatable with glasses, prism lenses, or surgery depending on the cause and severity.

No. Many cases, especially in children, improve significantly with corrective glasses or vision therapy alone. Surgery is recommended specifically when muscle realignment is needed and isn't achievable through glasses or therapy.

People with diabetes should have a dilated retina examination at least once a year, even without any noticeable vision changes -- diabetic retinopathy can develop and progress silently in its early stages. If retinopathy is already detected, more frequent monitoring may be recommended depending on severity.

In most cases, no. Glaucoma is often called the "silent thief of sight" because peripheral vision is lost so gradually that people don't notice until significant damage has occurred. This is why a simple eye pressure check and optic nerve evaluation -- not waiting for symptoms -- is the only reliable way to catch it early.

Good LASIK candidates generally have a stable glasses or contact lens prescription for at least one year, are 18 or older, and have healthy corneas without significant dry eye disease or certain corneal conditions. The only way to know for certain is through a detailed evaluation, including corneal mapping and thickness measurement -- this is done before any procedure is recommended, and if LASIK isn't right for you, you'll be told clearly along with suitable alternatives.

Sudden double vision (diplopia) can result from issues with the eye muscles, the nerves controlling them, or the brain's visual pathways. While some causes are minor, new or worsening double vision should be evaluated promptly, since it can occasionally be an early sign of an underlying neurological condition that needs prompt diagnosis.

Cataract surgery is a **painless procedure** performed under local anesthesia. Most patients remain entirely comfortable during the surgery, which typically takes 10 to 15 minutes.

The earlier squint (strabismus) is evaluated and treated, the better -- ideally as soon as it's noticed, even in infants. Untreated squint during early childhood can lead to amblyopia ("lazy eye"), a permanent reduction in vision in the misaligned eye, because the brain learns to ignore its input during critical developmental years.

Most patients notice significantly improved vision within 24 to 48 hours of stitchless cataract surgery. Mild light sensitivity or a gritty sensation can occur for a few days. Full visual stabilization typically takes 2 to 4 weeks, during which prescribed eye drops should be used as directed and strenuous activity, swimming, and eye rubbing should be avoided.

Glaucoma cannot be cured, and vision already lost to it cannot be restored. However, it can almost always be effectively managed to prevent further vision loss -- most commonly with pressure-lowering eye drops, sometimes with laser treatment, and occasionally with surgery for advanced or uncontrolled cases. The goal of treatment is always to preserve the vision you currently have.

Early macular degeneration can cause blurred or distorted central vision, difficulty recognizing faces, or straight lines appearing wavy. Some people notice no symptoms at all in the earliest stage. Because damage from advanced disease can be irreversible, anyone over 50 -- especially with a family history -- should have a dilated retina examination even without symptoms.

Optic neuritis is inflammation of the optic nerve, which can cause sudden vision loss or blurring, often with pain on eye movement. Diagnosis involves a detailed neuro-ophthalmic evaluation, including visual field testing and optic nerve assessment, sometimes alongside neurology referral, since it can occasionally be linked to broader neurological conditions.

Adults can absolutely be evaluated and treated for squint, whether it developed in childhood and was never corrected, or appeared later in life. Treatment options range from corrective glasses and vision therapy to strabismus surgery, depending on the cause and severity -- evaluation will determine the most appropriate approach for your specific situation.

The right IOL depends on your lifestyle and visual needs. Monofocal lenses give excellent distance vision but usually require reading glasses afterward. Multifocal and trifocal lenses reduce dependence on glasses across distances. Toric lenses correct astigmatism during the same surgery. Dr. Rajeswari will discuss your specific eye measurements and daily visual needs to recommend the most suitable option -- without pushing premium lenses you don't need.