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Treatments & Conditions

Cataract Surgery With Trifocal Implants, Toric Implants & Monofocal Implants

What is a cataract

A cataract is due to a clouding of the natural crystalline lens inside the eye. In the majority of cases, it is an age related process, however, there can be other causes as well. Cataracts usually develop around the age of 40, but since they develop slowly and do not impair vision until much later, most people do not experience symptoms until after they are 60 years old. There is no medical treatment for cataracts and the definitive means of correction is cataract surgery. Regular eye examinations are important to detect such conditions before they worsen.

Signs and Symptoms of Cataracts

Cataracts come with several symptoms but as mentioned above, since this eye disease deteriorates slowly, the signs may not be apparent until it has reached the later stages. Below are some of the common signs and symptoms.

Blurry vision – The scattering and blocking of light by cataracts prevents sharply defined images from reaching the retina, which results in blurry vision.

Yellow tinge – As we age, cataracts alter the colour of our crystalline lenses, and light entering the eyes is reflected in a yellow hue.

Light sensitivity and halos – Cataracts can also cause sensitivity to bright light and glare, compromising on vision, especially at night.

Double vision – Even with one eye open, cataracts can cause images to appear double, with the second image positioned horizontally, vertically, or diagonally to the original.

Keep in mind that the above are not definitive indicators of cataracts and it is recommended to consult an expert rather than self-diagnosing. Depending on your condition and diagnosis, your eye doctor may advise cataract surgery.

Causes and Risk Factors

Apart from ageing, there are other causes and risk factors of cataracts, some of which can be controlled while others may not. Controllable aspects revolve around lifestyle choices. For instance, diabetes, excessive exposure to sunlight, smoking, obesity and high blood pressure have been shown to be closely associated with cataracts. By exercising regularly, maintaining a healthy diet and living an overall healthier lifestyle, we can reduce health risks such as diabetes, obesity and high blood pressure, which in turn, may decrease our chances of contracting cataracts and having to undergo cataract surgery.

On the other hand, uncontrollable elements tend to centre on biology including age and family history.


Today, thousands of cataract extractions are performed with a high success rate. Typically, cataract surgery in Singapore is performed under local anaesthesia with sedation and takes 30 minutes on average. There are many choices of intra-ocular implants available today (Monofocal, Monofocal Toric, Multifocal, Multifocal Toric) and the choice of implant depends on your condition and preference. Apart from the implants, it is also important to consider the cataract surgery cost.

In general, monofocal implants provide good distance visual in the absence of astigmatism but reading glasses will still be needed unless monovision is opted for. Monovision is a situation where the master eye is set for distance vision while the other is set for near vision. Not everyone is suitable for this procedure and a monovision trial is necessary beforehand.

Toric implants are able to correct pre-existing astigmatism and are useful in correcting the visual distortion that it causes. Lastly, multifocal implants are used to alleviate the symptoms of presbyopia or ‘lao hua’. In general, patients with multifocal implants enjoy good functional vision without the need for reading glasses, although side effects of glare and halos may occur in dim light conditions.

Fortunately, these visual side effects tend to get better with time. A newer method of cataract surgery where a femtosecond laser is used for part of the procedure is also available (FLACS or Femtosecond Laser Assisted Cataract Surgery). The downtime after cataract surgery lasts around 3-4 weeks and prescribed medicated eye drops are required for about 6 weeks. Vision usually becomes clear on the first day but may take about a week to improve in some cases.

The cataract surgery cost in Singapore varies according to eye clinics, therefore, it is best to explore your options and talk to different eye specialists before making a decision.


The cataract surgery cost in Singapore varies, depending on different eye centres. The average cost to perform cataract surgery on one eye in Singapore ranges from $3000 to $8000.

Cataract surgery in Singapore is a relatively quick procedure, lasting around 30 to 45 minutes on an outpatient basis. Most patients should be able to go home on the same day after the surgery has been completed.

After undergoing cataract surgery in Singapore, there are certain practices patients are recommended to follow as shown below.



Follow any advice given to you by your eye specialist in Singapore.

Wear sunglasses on bright days for at least a year after surgery.

Avoid swimming to minimise your risk of infections.

Use eye drops prescribed your eye doctor in Singapore.


Do Not:

Drive until after the first day of your cataract surgery.

Perform strenuous activities.

Rub your eyes.

Wear eye make up if possible.

Cataract surgery in Singapore should not be painful. Though patients are awake during the surgery, local anesthesia is used to numb the area resulting in little to no pain or discomfort. Experiencing pain after the procedure is rare as well, but mild to moderate discomfort is common and should fade in time.

The lens implanted by your eye specialist during cataract surgery is durable and should last a lifetime. However, diabetes and glaucoma are other conditions that may affect your eyes, resulting in limited vision irrespective of successful cataract surgery. In addition, the capsule holding the lens may also become cloudy at times, in which case, a laser is used to correct the cloudiness.

The side effects of cataract surgery typically improve within a few days, however, it can take up to 4 to 6 weeks for complete recovery. During this stage, it is vital to closely heed the instructions of your eye doctor to ensure a smooth and seamless recovery process.




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