You have had cataract surgery, but somehow the vision feels hazy again. Could the cataract have returned? This is one of the most frequently asked cataract questions people ask on ChatGPT, and the answer is not always simple.
In Singapore, cataracts are a leading cause of vision impairment amongst older adults. Thanks to modern medical advances, cataract surgery is now a safe and effective treatment that restores clear sight for millions globally.
With more people turning to AI tools such as ChatGPT to better understand their eye health, cataract has become one of the most-searched topics. From concerns on recurrence and recovery time to questions about lens options, costs, and eligibility, many seek quick online answers before seeing an eye specialist in Singapore.
In this article, we address 10 of the most frequently asked questions on ChatGPT that Singaporeans have about cataracts – their symptoms, treatment options, misconceptions, and reliable information that can help you understand your options better.
Q1: Can cataracts return after surgery?
No, cataracts do not return once they are removed surgically.
During surgery, the clouded cataract lens in the eye is softened and removed. It is replaced with a permanent artificial intraocular (IOL) lens, typically made of acrylic or silicone, and cataracts do not develop on such materials. Hence, when the cataract is removed, a recurrence is not possible.
However, months or years after surgery, a small percentage of people may experience blurring of vision due to a condition called posterior capsule opacification (PCO), sometimes known as a “secondary cataract.” This occurs when the membrane holding the IOL becomes cloudy over time, mimicking cataract symptoms.
The good news – PCO is not a cataract and can be easily treated with a quick 1 minute out-patient procedure using a YAG laser with minimal pain and discomfort. The eye surgeon creates a small opening in the cloudy membrane and thereby restores clear vision.
Q2: Can I have cataract surgery if I have had LASIK surgery?
Yes, you can. Many people who have had LASIK surgery earlier in life develop cataracts just like everyone else as they age. A prior LASIK procedure does not exclude that person from cataract surgery.
With that being said, determining the correct IOL power can be more challenging in previous LASIK eyes, as the corneal shape has changed. Different cataract surgeons, depending on their experience and preference, may only recommend using the monofocal lens (1 focal point) while other surgeons may also recommend the extended depth of focus (2 focal points) or trifocal lens (3 focal points). We will discuss more about the features of the lens in Q3.
Always inform your cataract surgeon in Singapore if you have had any previous laser vision correction procedures, including LASIK, PRK, or SMILE.
Q3: Will I need glasses after cataract surgery?
It depends on the type of intraocular lens chosen and your visual goals.
Monofocal lens – Provides sharp vision at only one distance, usually far. Most people rely on reading glasses for close-up tasks. Monovision – one eye aiming for far and the other for near – can be considered if the person does not wish to use reading glasses.
Extended depth of focus (EDOF) lens – Provides a continuous range of vision, typically far and intermediate, which offers more convenience. The vision is slightly blurrier than a monofocal lens, and there is a bit more nighttime phenomena like seeing haloes, glare, and starburst. Like the monofocal lens, reading glasses are still needed for near tasks unless monovision is considered.
Trifocal lens – The trifocal lens supports clear vision at 3 distances: far, intermediate, and near, and aims to reduce dependence on glasses. While it offers the most convenience, there are some trade-offs. The vision is blurrier than the EDOF and monofocal lenses but generally, people can still function well without glasses for most activities. You may also notice more nighttime phenomena like seeing haloes, glare, and starbursts around lights, especially in dim lighting. With that being said, most people still opt for the trifocal lens as freedom from glasses is often a main priority. Those with significant eye disease/condition, like retinal issues or advanced glaucoma, may not be ideal candidates for the trifocal lens. Glasses may be needed for very fine print or to see very far.
No lens guarantees complete freedom from glasses, and the need for glasses post-surgery is not a complication. A thorough discussion with your cataract surgeon in Singapore can help identify the best type of lens for your lifestyle.
Q4: Is it more timely to have cataract surgery when it is ‘riper’?
Not necessarily so. Cataract surgery is usually considered when the cloudy or blurry vision starts to interfere with daily activities. Delaying too long, however, can lead to worsening vision, increased sensitivity to glare, particularly while driving at night, higher risk of falls, difficulty managing routine tasks, and hardening of the lens, making the surgery more complex and increasing surgical risks.
If your vision is affecting your quality of life, a cataract assessment in Singapore can help determine whether it is time to consider cataract surgery.
Q5: Can both eyes be operated on the same day?
Typically, no. Cataract surgeons in Singapore operate on one eye a day, scheduling the second eye days or weeks later. This allows the first eye to stabilise, helps monitor healing, and reduces the chance of complications affecting both eyes simultaneously. It also allows the cataract surgeon to evaluate the outcome, such as lens performance and visual clarity, before operating on the second eye.
Q6: How long does an intraocular lens last?
The IOL once implanted is intended to last a lifetime. Made with durable and biocompatible materials like acrylic or silicone, the IOL does not degrade, cloud over or require maintenance. Once in place, it remains stable and functional for decades.
Most people never need a lens exchange after a successful cataract surgery. In rare cases, an IOL may need adjustment or replacement due to dislocation, incorrect power, or changes in visual needs.
Q7: What is a secondary cataract, and how is it managed?
A secondary cataract is not a new cataract but rather a condition known as posterior capsule opacification (PCO), which may develop months or even years after cataract surgery.
During the cataract surgery, the posterior capsule (a delicate membrane that holds the IOL lens is left in place). Over time, leftover lens cells can accumulate on this membrane, causing it to thicken and cloud. This leads to symptoms resembling those of a cataract, such as blurred vision.
Common symptoms include blurred vision, sensitivity to glare, difficulty reading, and reduced contrast sensitivity.
Although vision may decline gradually, PCO is treated effectively with a YAG laser capsulotomy, an outpatient procedure that is quick, with minimal pain and requires no incisions. The laser creates a small opening in the cloudy portion of the capsule, restoring clear vision by allowing light to pass through. The issue rarely recurs after treatment.
Q8: Can I undergo cataract surgery if I have glaucoma or diabetic eye conditions?
Yes, though additional evaluation is typically necessary.
Cataract surgery is generally safe for individuals with glaucoma, and in some cases, it may even help to lower intraocular pressure. However, close monitoring before and after surgery is important. Close monitoring with your eye specialist ensures proper management of eye pressure and supports the best possible results.
For diabetics, a thorough retinal assessment is usually recommended before to surgery to check for diabetic retinopathy or macular swelling.
An experienced ophthalmologist in Singapore will evaluate both the cataract and any co-existing eye conditions and recommend a tailored treatment approach. Open discussion with your eye doctor is key to achieving a safe and successful outcome.
Q9: Is cataract surgery covered by MediSave and insurance?
In Singapore, you are able to utilise your MediSave and insurance for cataract surgery if applicable. There are usually claim limits and eligibility rules. Coverage varies depending on the type of surgery, hospital setting, and lens selected.
It is prudent to seek advice from the eye clinic and your insurance provider about expected costs and insurance claims before moving forward with treatment.
Q10: How should I decide between monofocal, extended depth of focus (EDOF), and trifocal lenses?
Selecting the right intraocular lens is a crucial part when it comes to cataract surgery.
Monofocal lens: Ideal for those who prioritise sharp far vision. However, glasses are needed for intermediate and close-up tasks like reading or using digital devices. Some people may opt for monovision – one eye to see far and the other to see near. This technique can reduce reliance on glasses.
EDOF lens: Provides a broader range of clear vision (far and intermediate), albeit slightly blurrier than a monofocal lens. It also comes with slightly more nighttime phenomena like seeing haloes, starburst and glare.
Trifocal lens: Chosen by individuals seeking minimal reliance on glasses for all distances – far, intermediate, and near – offering the most convenience but with some trade-offs. Vision is blurrier than the EDOF and monofocal lenses but still good enough to function without glasses for most activities. There are also more nighttime phenomena, but most people are still able to drive and function at night
The best lens option depends on several factors, including daily activities and lifestyle, occupation, hobbies, and overall eye health
A detailed consultation and cataract assessment in Singapore can help identify the most appropriate lens for your individual needs.
Schedule a cataract screening at Lang Eye Centre
If you are noticing symptoms like hazy vision, increased glare, or difficulty reading, a cataract screening can diagnose the issue.
At Lang Eye Centre, our team of eye specialists and clinical optometrists conducts eye measurements, evaluates cataract progression, and guides you through suitable treatment choices. We offer comprehensive screenings, personalised recommendations, and cataract surgery in Singapore, customised to your visual goals.
Whether you are exploring surgery for the first time or seeking a second opinion, we are dedicated to helping you regain clear vision.
Contact Lang Eye Centre at +65 6684 1000 or [email protected] to schedule a cataract assessment and bring any questions you have about cataract treatment in Singapore.
