All About Ophthalmology

Ophthalmology is the branch of medicine dedicated to the diagnosis, treatment, and prevention of diseases and disorders affecting the eyes and visual system. It covers both medical and surgical care, including procedures such as cataract removal, corneal transplants, and retinal surgeries

[aboutophthalmology]

Posterior Subcapsular Cataract

When it comes to cataracts, not all are the same. One lesser-known but particularly bothersome type is called the posterior subcapsular cataract (PSC). It tends to affect people differently from the more common age-related cataracts. If you’ve been told you have PSC or are noticing changes in your vision, you're definitely not alone.

What Exactly Is a Posterior Subcapsular Cataract?

A PSC forms at the back of the lens, right in the path of light as it travels to your retina. That’s why it can affect your vision more noticeably even if it’s relatively small.

Unlike nuclear cataracts that develop slowly over years, PSCs can come on a bit more quickly and cause symptoms that feel out of proportion to their size.

Who Is at Risk?

You don’t have to be elderly to develop a PSC. While it can still happen with age, there are other factors too:

Long-term use of steroid medications

Diabetes

Previous eye surgery or trauma

Radiation exposure

Genetic conditions

What Are the Symptoms?

Because PSCs affect the central visual axis, they can be particularly frustrating. Some common symptoms include:

Glare or haloes around lights, especially at night

Difficulty seeing in bright sunlight

Blurry near vision more than distance

A general sense that reading or close-up work feels harder than it used to

Many people notice these symptoms when driving at night or reading under bright lighting both very common scenarios.

How Is It Diagnosed?

A PSC is diagnosed during a detailed eye examination. Your eye specialist will use a slit-lamp microscope to look at the back of your lens. Sometimes pupil dilation is necessary to get a better view.

It’s a simple, non-invasive check and can usually be done at any cataract clinic.

Can It Be Treated?

Yes. Like other cataracts, a PSC doesn’t improve on its own. If it starts to interfere with your daily activities, cataract surgery is the best option.

The procedure involves removing the clouded lens and replacing it with a clear artificial intraocular lens (IOL).

It’s typically done under local anaesthetic and has a high success rate.

In Singapore, cataract surgery is performed frequently and safely, whether in public hospitals or private cataract clinics.

How Is the Recovery?

Recovery from PSC-related cataract surgery is similar to other types:

Most people notice improved vision within a few days

Eye drops are prescribed to aid healing

Some mild discomfort, light sensitivity or blurry vision may occur temporarily

Follow-up visits are scheduled to ensure the eye is healing properly and to check that the new lens is well positioned.

Is It Preventable?

Not entirely, but you can lower your risk by:

Using steroids only when prescribed, and under supervision

Controlling blood sugar levels if you have diabetes

Wearing UV-protective sunglasses to reduce exposure to harmful rays

Early detection through regular eye check-ups, especially if you fall in a higher-risk category, makes a real difference.

When Should You See a Cataract Surgeon?

If you’re experiencing:

Trouble reading or focusing at near distances

Annoying glare in the evening

Vision that worsens faster than expected

Final Thoughts

Posterior subcapsular cataracts can be bothersome, but they’re very treatable. The key is recognising the signs early and taking action.

If your vision is getting in the way of your daily routine, consult with a cataract surgeon in Singapore or visit a cataract clinic to explore your options. Clearer sight might be closer than you think.

[aboutophthalmology]

Wearing Contact Lenses After a Corneal Transplant: What Singapore Patients Should Know

If you've had a corneal transplant, the healing's underway, and your vision is slowly clearing up but it's not quite perfect yet. Understandably, you might be wondering, “Can I wear contact lenses again?” Or more specifically, when, what type, and how safe is it?

Here’s what you need to know about returning to contact lenses after corneal transplant surgery, and why a cautious, specialist-led approach is key.

1. Why Contacts Are Still Needed After a Transplant

Let’s start with a hard truth: corneal transplants don’t always restore perfect vision on their own. Even when the graft is clear and stable, you may still have irregular astigmatism, surface curvature changes, or higher-order aberrations. These can make standard glasses less effective, especially for tasks like reading signs, night driving, or computer work.

Specialised contact lenses can help smooth over the corneal surface, improving both comfort and clarity.

2. When Can You Safely Start Wearing Them Again?

Most cornea surgeons recommend waiting at least 3 to 6 months post-transplant before considering contact lenses. Why? Because:

The eye shape needs time to stabilise

Sutures may still be in place (and affect lens fit)

The graft-host junction must fully heal

Every patient is different, so your ophthalmologist will decide when the eye is ready based on healing progress, topography scans, and overall comfort.

3. What Types of Lenses Are Typically Used?

Forget standard soft lenses, post-transplant corneas often need custom solutions. Some commonly used types include:

Rigid Gas Permeable (RGP) lenses: Small and firm, excellent for irregular astigmatism

Scleral lenses: Large lenses that vault over the cornea and sit on the sclera very comfortable and great for complex grafts

Hybrid lenses: Rigid centre with a soft skirt, combining clarity with better comfort

Custom soft toric lenses: Occasionally used if the corneal shape is relatively normal

Your cornea specialist will choose based on the shape, surface quality, and lifestyle needs.

4. Are There Risks Involved?

Yes, but manageable ones. Poorly fitted lenses can:

Cause corneal abrasions

Disrupt healing

Increase the risk of infection or graft rejection

That’s why it’s essential to have lenses fitted by a cornea-trained optometrist or under supervision of your eye specialist. In Singapore, this often means visiting specialist centres that can scan and customise lens design digitally.

Regular reviews are a must even if your lenses feel fine.

5. Can I Wear Lenses Every Day?

Not necessarily. Early on, your doctor may recommend limited wear (e.g., 4–6 hours/day), especially if:

Your eye dries out easily

Sutures are still present

Vision fluctuates during the day

Eventually, many patients can tolerate full-day wear with the right lens and eye drop regimen. But listen to your eyes irritation or redness are signs to pause.

6. What Are Some Singapore-Specific Considerations?

Humidity, constant air-con exposure, and haze season can all affect lens comfort. Some tips:

Carry preservative-free artificial tears when out and about

Use a humidifier at night if you sleep in an air-conditioned room

Take breaks from screens every 20 minutes to rest your eyes

A good lens isn’t just about optics it should feel natural, even in challenging environments.

7. Long-Term Outlook: Will I Always Need Them?

Maybe, maybe not. It depends on your original diagnosis and how well your eye stabilises post-op. Some patients can switch to glasses over time; others rely on specialty lenses for decades.

But the good news? With today’s technology, wearing contacts after a transplant is safer and more comfortable than ever. Scleral lenses in particular have changed the game for patients who once struggled with hard lenses.

Final Thoughts

Don't rush back into lenses just because you miss the convenience. Your eyes have been through a lot. It deserves care, patience, and expert guidance.

Have questions about wearing contact lenses after surgery? Visit your cornea specialist in Singapore to get a proper fit, safe plan, and clarity that lasts.

[aboutophthalmology]

Wearing Contact Lenses After a Corneal Transplant: What Singapore Patients Should Know

If you've had a corneal transplant, the healing's underway, and your vision is slowly clearing up but it's not quite perfect yet. Understandably, you might be wondering, “Can I wear contact lenses again?” Or more specifically, when, what type, and how safe is it?

Here’s what you need to know about returning to contact lenses after corneal transplant surgery, and why a cautious, specialist-led approach is key.

1. Why Contacts Are Still Needed After a Transplant

Let’s start with a hard truth: corneal transplants don’t always restore perfect vision on their own. Even when the graft is clear and stable, you may still have irregular astigmatism, surface curvature changes, or higher-order aberrations. These can make standard glasses less effective, especially for tasks like reading signs, night driving, or computer work.

Specialised contact lenses can help smooth over the corneal surface, improving both comfort and clarity.

2. When Can You Safely Start Wearing Them Again?

Most cornea surgeons recommend waiting at least 3 to 6 months post-transplant before considering contact lenses. Why? Because:

The eye shape needs time to stabilise

Sutures may still be in place (and affect lens fit)

The graft-host junction must fully heal

Every patient is different, so your ophthalmologist will decide when the eye is ready based on healing progress, topography scans, and overall comfort.

3. What Types of Lenses Are Typically Used?

Forget standard soft lenses, post-transplant corneas often need custom solutions. Some commonly used types include:

Rigid Gas Permeable (RGP) lenses: Small and firm, excellent for irregular astigmatism

Scleral lenses: Large lenses that vault over the cornea and sit on the sclera very comfortable and great for complex grafts

Hybrid lenses: Rigid centre with a soft skirt, combining clarity with better comfort

Custom soft toric lenses: Occasionally used if the corneal shape is relatively normal

Your cornea specialist will choose based on the shape, surface quality, and lifestyle needs.

4. Are There Risks Involved?

Yes, but manageable ones. Poorly fitted lenses can:

Cause corneal abrasions

Disrupt healing

Increase the risk of infection or graft rejection

That’s why it’s essential to have lenses fitted by a cornea-trained optometrist or under supervision of your eye specialist. In Singapore, this often means visiting specialist centres that can scan and customise lens design digitally.

Regular reviews are a must even if your lenses feel fine.

5. Can I Wear Lenses Every Day?

Not necessarily. Early on, your doctor may recommend limited wear (e.g., 4–6 hours/day), especially if:

Your eye dries out easily

Sutures are still present

Vision fluctuates during the day

Eventually, many patients can tolerate full-day wear with the right lens and eye drop regimen. But listen to your eyes irritation or redness are signs to pause.

6. What Are Some Singapore-Specific Considerations?

Humidity, constant air-con exposure, and haze season can all affect lens comfort. Some tips:

Carry preservative-free artificial tears when out and about

Use a humidifier at night if you sleep in an air-conditioned room

Take breaks from screens every 20 minutes to rest your eyes

A good lens isn’t just about optics it should feel natural, even in challenging environments.

7. Long-Term Outlook: Will I Always Need Them?

Maybe, maybe not. It depends on your original diagnosis and how well your eye stabilises post-op. Some patients can switch to glasses over time; others rely on specialty lenses for decades.

But the good news? With today’s technology, wearing contacts after a transplant is safer and more comfortable than ever. Scleral lenses in particular have changed the game for patients who once struggled with hard lenses.

Final Thoughts

Don't rush back into lenses just because you miss the convenience. Your eyes have been through a lot. It deserves care, patience, and expert guidance.

Have questions about wearing contact lenses after surgery? Visit your cornea specialist in Singapore to get a proper fit, safe plan, and clarity that lasts.

[aboutophthalmology]

Is It Possible for Retinal Detachment to Happen Again?

If you’ve experienced retinal detachment before, you probably remember the worry, the hospital visits, and the recovery. It’s not exactly something you'd want to go through twice. But one question tends to pop up for many patients post-surgery: "Can it happen again?" The short answer? Yes, it can but not always. And that's why knowing the risks, symptoms, and prevention tips matters more than ever.

What Is Retinal Detachment Again?

Quick recap: retinal detachment occurs when the retina (the light-sensitive layer at the back of your eye) pulls away from the tissue beneath it. This cuts off its blood supply and can lead to permanent vision loss if not treated quickly.

It usually starts with a tear, letting fluid seep in and push the retina away. That’s why catching symptoms early can really save your sight.

Yes, It Can Recur – Here's Why

Retinal detachment can happen again, especially if you've had one in the past. Studies show the risk of recurrence is around 10% to 15%, depending on the condition of your eye and the type of treatment received.

Here’s when the chances go up:

Incomplete healing after the first surgery

New retinal tears forming in other areas

Severe myopia (short-sightedness), which is very common in Singapore

Genetic predisposition or underlying eye disorders like lattice degeneration

Post-surgical scarring, known as proliferative vitreoretinopathy (PVR), which can tug the retina again

What About the Other Eye?

Here’s something people often overlook: if you've had detachment in one eye, the risk to your other eye increases. In fact, the likelihood of developing a detachment in the fellow eye can be as high as 20% in some cases.

This is especially true in Singapore, where high myopia affects more than 80% of young adults, as reported by the Ministry of Health. Myopic eyes are longer and the retina is thinner – more prone to tears or holes.

Signs to Watch for Again

Even if you’ve had surgery, always be alert to:

Flashes of light (especially in peripheral vision)

New floaters (or a sudden increase in floaters)

A grey shadow moving across your field of vision

Distorted or blurry vision

Don’t assume it’s nothing just because you’ve had surgery before. A second detachment may feel different or even subtler.

Can It Be Prevented?

While you can't always stop retinal detachment from happening again, you can reduce the chances:

Attend all follow-up appointments with your ophthalmologist

Avoid contact sports or activities that risk eye trauma

Limit heavy lifting or strenuous exercise during recovery

Monitor your vision daily – even covering one eye at a time to check for differences

Treat new retinal tears immediately before they lead to detachment

In some cases, the eye doctor may treat weak or thinning areas on the retina preemptively with laser therapy, especially in high-risk eyes.

What Happens If It Recurs?

A repeat detachment usually requires another surgical procedure, possibly more complex than the first. Techniques like vitrectomy, scleral buckle, or gas/oil tamponade may be used again, or in combination.

Surgery still offers a good chance of success, especially if done early. But let’s be honest – outcomes can vary. The longer the retina is detached, the harder it is to restore full vision.

That’s why you really don’t want to wait if something feels off.

Stay Ahead of It

Living in Singapore means you’re fortunate to have access to world-class ophthalmic care public and private. But access is only helpful if you actually go!

Whether you’ve had surgery or not, get your eyes checked regularly. Especially if you’re myopic, had cataract surgery, or simply have a strong family history of eye disease.

Final Thoughts

You only get one pair of eyes. And once vision is lost due to detachment, it can be hard or even impossible to bring it back. But staying informed and proactive goes a long way.

If you notice something unusual with your vision, consult with your eye specialist today or visit an eye clinic. Don't second guess it just get it checked.

[aboutophthalmology]

Anterior Polar Cataracts

When we talk about cataracts, most people think of older adults gradually losing their vision over time. That’s the common picture we have. But did you know that some cataracts can actually be present from birth? These are known as congenital cataracts, and one specific type is called an anterior polar cataract. It may sound quite technical and a bit concerning at first but it's actually a relatively mild form that often doesn’t cause major issues or require cataract treatment unless it affects vision development

What Are They?

Anterior polar cataracts are small white spots that form at the front of the lens in the eye. They’re usually present from birth and are commonly inherited. The good news? Many are harmless and don’t need any treatment.

Who Gets Them?

These cataracts are most often seen in infants or young children. If there’s a family history, your child might have a higher chance of developing them. They're not caused by poor habits or exposure to screens, so no need for guilt here.

Do They Affect Vision?

Not always. Some children may not notice any problems at all. But in a few cases, if the cataract blocks the visual axis (the central part of the eye used for seeing), it could cause lazy eye (amblyopia) or blurred vision.

What Are the Signs?

A white spot in the pupil

Squinting or drifting eyes

Trouble focusing on faces or toys

In Singapore, such cataracts are often detected early during paediatric eye screenings.

What Can Be Done?

For many kids, no treatment is needed just regular check-ups. If there is a concern about vision:

Glasses or eye patches might be used

Rarely, surgery is considered

Any decision about surgery is made carefully by your cataract surgeon after evaluating the situation.

What Should Parents Do?

Keep up with routine eye checks

Don’t panic if your child is diagnosed with anterior polar cataract

Monitor any changes in your child’s vision or behaviour

So, while the term ‘anterior polar cataract’ might sound alarming, it’s often nothing to worry too much about. Still, it’s worth keeping an eye on things and getting proper advice.

If you're unsure or want to be certain everything’s alright, consult with a cataract surgeon in Singapore or visit a cataract clinic for peace of mind.

[aboutophthalmology]

Minimally Invasive Corneal Surgery Techniques in Singapore

Gone are the days when corneal surgery automatically meant long hospital stays and long stitches. With evolving technology and surgical finesse, patients in Singapore now have access to a wide range of minimally invasive corneal surgery options. These approaches reduce trauma, shorten recovery, and often improve visual outcomes, especially when tailored to the patient’s specific condition.

If your eye specialist has recommended surgery, don’t panic. This guide breaks down modern, minimally invasive procedures available in Singapore and what they mean for your eyes and your life.

Why Go Minimally Invasive Corneal Surgery?

Minimally invasive surgery (MIS) isn’t just a buzzword. For corneal patients, it means:

Smaller incisions

Reduced tissue removal

Fewer stitches (sometimes none at all!)

Faster visual recovery

Lower rejection risk in transplants

These techniques are especially useful in partial-thickness corneal procedures, which preserve healthy layers of your natural cornea.

Minimally Invasive Corneal Procedures in Singapore

1. DMEK (Descemet Membrane Endothelial Keratoplasty)

This ultra-precise procedure replaces only the innermost layer of the cornea, the endothelium. It’s currently considered one of the most advanced techniques for Fuchs’ dystrophy and endothelial dysfunction.

Why it’s minimally invasive:

Uses a very thin graft (just 10–15 microns!)

No stitches required in some cases

Recovery is faster than with full-thickness transplants

2. DALK (Deep Anterior Lamellar Keratoplasty)

Ideal for conditions like keratoconus or anterior scarring, DALK removes the front layers of the cornea while leaving the innermost layer intact.

Benefits include:

Better structural integrity

Reduced graft rejection

Faster rehabilitation

3. Femtosecond Laser-Assisted Corneal Surgery

Laser technology is revolutionising the game. With femtosecond lasers, eye surgeons can perform ultra-precise cuts, fabricate tailored shapes for grafts, and minimise manual dissection.

Common uses include:

Assisting DALK or PK procedures

Creating smoother graft-host junctions

Laser-assisted techniques enhance consistency and may reduce healing time. However, they may not be needed in all cases, so it’s worth discussing at your consultation.

4. PTK (Phototherapeutic Keratectomy)

A surface-level laser treatment used for:

Recurrent erosions

Corneal surface scarring

Deposits and opacities

PTK gently removes superficial layers without penetrating deep tissue, often done under topical anaesthetic in an outpatient setting.

Are You a Candidate?

You may be considered for minimally invasive techniques if you:

Have early to moderate keratoconus

Suffer from endothelial dystrophy

Need structural correction without full-thickness replacement

Wish to avoid prolonged downtime

Your ophthalmologist will decide based on corneal thickness, shape, cell health, and scarring.

Success Rates and Outlook in Singapore

Singapore has high standards of ophthalmic care. Recent local audits have shown DMEK and DALK success rates of above 90% at 1-year post-surgery, with many patients returning to work within 2–3 weeks.

Of course, recovery varies. But with less tissue trauma and smarter surgical tools, most patients experience clearer vision and greater comfort, much sooner than traditional methods.

Considering Your Options? Speak With a Specialist

Minimally invasive corneal surgery isn’t a one-size-fits-all solution, but it’s changing the landscape for many in Singapore living with corneal disease.

If you're facing corneal surgery, don’t be afraid to ask your eye specialist about these options.

Visit an eye clinic in Singapore today to discuss whether a minimally invasive approach might be right for you.

[aboutophthalmology]

Does Cataract Always Require Surgery?

What You Should Know in Singapore

Cataracts are incredibly common, especially as we age. In Singapore, it’s estimated that more than 80% of people above the age of 60 will develop cataracts at some point. But here's the real question: does every cataract need surgery?

Short answer? Not necessarily. While surgery is the only permanent solution to remove a cataract, not all cataracts require immediate surgical intervention. Many people live quite comfortably with early-stage cataracts for years.

Let’s talk about what cataracts are, how they progress, and when surgery becomes necessary and when it might not.

What Exactly Is a Cataract?

A cataract forms when the clear lens inside your eye becomes cloudy. This cloudiness blocks light from passing through the lens properly, which can result in blurred vision, increased sensitivity to glare, and faded colours.

Cataracts typically develop slowly. For some, it can take years before they notice any major difference in vision. Others might feel the impact sooner, depending on how the cataract develops and where it is in the eye.

Does Every Cataract Need Surgery?

No, and this is important to know. Surgery is recommended based on how much the cataract is affecting your daily life, not just because it's present.

In the early stages, your ophthalmologist may suggest non-surgical management. Here are some situations where surgery might not be needed right away:

1. Your Vision Is Still Functional

If your cataract is mild and you're still able to read, drive, and carry out daily tasks without much trouble, your eye specialist may recommend monitoring it over time.

Changes in your eyeglasses prescription or using brighter lighting can help manage symptoms in the meantime.

2. It’s Not Affecting Your Lifestyle

Some people adapt surprisingly well to minor vision changes. If you're not experiencing significant glare, double vision, or difficulty seeing at night, surgery can usually be postponed.

Many patients in Singapore choose to delay surgery until they feel it’s genuinely interfering with work, hobbies or independence.

3. Other Eye Conditions Need Prioritisation

If you have other ongoing eye issues such as glaucoma, diabetic retinopathy or macular degeneration, your ophthalmologist may want to stabilise those conditions before considering cataract surgery.

In some cases, treating a cataract too early when another eye condition is present may complicate the outcome.

4. Medical or Personal Reasons

Some people have health conditions that increase the risks associated with surgery. Others may simply not feel ready. As long as the cataract is not causing urgent problems, it's reasonable to wait but with proper follow-up care.

How Can You Manage Cataracts Without Surgery?

In the earlier stages, lifestyle adjustments and visual aids can be quite effective. Some examples include:

Using anti-glare sunglasses or hats to reduce light sensitivity

Improving lighting around the home or office

Updating your glasses regularly

Limiting night driving if glare from headlights becomes too bothersome

Your eye specialist will probably want to see you more regularly to monitor changes, which might mean every 6 to 12 months.

But When Should You Seriously Think About Surgery?

Eventually, most cataracts will reach a point where surgery becomes the best (and sometimes only) option for clear vision again. You might want to discuss surgery with your ophthalmologist if:

You struggle to read or recognise faces

Driving at night becomes unsafe due to glare or poor vision

Your vision can’t be corrected with glasses anymore

Your work or daily activities are being affected

In Singapore, cataract surgery is widely available and is often performed as a day procedure. According to data from the Ministry of Health, more than 30,000 cataract surgeries are carried out locally each year, with excellent safety and success rates.

What About the Cost?

In Singapore, cataract surgery costs can vary depending on whether you go through a public or private eye clinic. The good news is that Medisave can often be used to cover a significant portion of the fees, especially for standard procedures.

Make sure to check with your clinic on what’s claimable and whether you need a referral.

Not every cataract needs immediate removal. It all comes down to how it affects your daily life and what your eye specialist advises based on your condition.

If you’ve been diagnosed with cataracts and are unsure whether now is the time for surgery, have that conversation with your ophthalmologist. The key is regular check-ups and staying informed.

To explore your options or book a consultation, visit a cataract clinic. Take control of your eye health — consult with your eye specialist today.