Eye Conditions


Cataract is a condition in which the natural clear lens of the eye becomes cloudy and reduces the amount of light entering the eye. This results in a gradual progressive deterioration of vision. It is the commonest cause of blindness in the world.

Causes of cataract

Cataract occurs as a natural aging process. It may be related to UV light exposure. Certain medical conditions, such as diabetes mellitus, use of certain medication, severe injury or chronic inflammation can also increase the risk of developing cataracts.


The commonest symptom of cataract is a gradual, progressive blurring of vision that cannot be corrected despite wearing spectacles. The vision tends to be worse at night, and there may be glare and haloes around lights. The patient experiences difficulty with both distant vision and near vision. A continued change in spectacle power may signify the progression of the cataract.

The cataract can be diagnosed when seeing an eye specialist and having an eye examination

Cataract surgery is usually recommended if the cataract is impairing vision and affecting one’s daily activities. Cataracts may need to be removed if it is very dense and is likely to cause complications such as glaucoma.

imgCataractCataract surgery

Cataract surgery is now very advanced and can be performed safely and effectively. Lang Eye Centre makes use of the latest machines and technologies to perform cataract surgery. Dr Ang has a wealth of experience in managing normal as well as complex cataracts.

Cataract surgery is performed as a day surgery procedure and usually takes less than 30 minutes to complete. The recovery is relatively fast and patients can resume most of their regular activities within a few weeks of the surgery.

The modern method of cataract removal is by phacoemulsification. A small 2mm incision is made at the edge of the cornea. The cataract is softened and removed using a phacoemulsification probe. An artificial lens is implanted and the wound seals on its own without the need for stitches. The patient can return home after the surgery.

imgCataract3Bladeless cataract surgery / Laser assisted cataract surgery

Cataract surgery can now be completely bladeless, with the use of a laser machine to help perform the various incisions in the initial part of surgery. The surgery is completed by phacoemulsification. The use of the laser can help to improve the precision and predictability of the surgery.

New and improved artificial lenses

At Lang Eye Centre, we offer patients the best artificial lenses to suit each patient’s individual needs. This includes aspheric monofocal lens to improve the sharpness and quality of vision compared to the standard lens, toric lens which can correct astigmatism and multifocal lens to correct both distant vision as well as presbyopia.