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Cataract Clinic

Know about Cataract

What is Cataract ?

Cataract is a natural clouding of the clear natural crystalline lens in the eyes. This is a normal outcome of the aging process but may also result out of trauma to the eye, heredity or diabetes. It is because of heredity that one sees infantile cataracts in some newborn babies.

Symptoms of Cataract

Whatever the cause, cataracts typically result in blurred or fuzzy vision and sensitivity to light.

Treatment of cataract

The only treatment for cataract is surgical intervention through which the cloudy natural lens is removed and replaced with a clear artificial lens. A cataract can be operated at any stage. In India, there is a myth that cataract’s should only be operated when “mature”. This may actually lead to complications.

Cataract surgery

Cataract surgeries are microsurgeries and are broadly categorized into two:

Small Incision Cataract Surgeries (SICS) This involves removing the cloudy lens in one piece through a scleral tunnel of 6 to 7 mm on the eye. Through this incision, the artificial lens is also implanted. No suturing is required.

Phacoemulsification(Phaco): This is the latest advance in cataract removal wherein a small ultrasonic probe is inserted into the eye through a cut of 3.2mm or less. This probe breaks (emulsifies) the cloudy lens into tiny pieces and gently sucks these out of the eye. The surgeon then implants the replacement lens through this cut.

Kinds of lenses used in Cataract Surgeries

While Non-foldable lenses are made up of PMMA, a hard plastic material, Foldable lenses are either made of acrylic or silicone. The advantage of a foldable over a non-foldable lens is that the incision is very small and consequently the recovery period is much faster. Whichever the lens used, cataract surgery is a small procedure wherein the patient is discharged after a couple of hours and can safely go back home the same day.

Toric lenses

For the past decade, ophthalmic surgeons have tried several methods to correct preexisting astigmatism during cataract surgery, including making incisions into the cornea to alter shape of the eye. now due to the unique design of the Toric IOL, astigmatism can be reduced or corrected without further surgical intervention.

Aspheric lenses

The aspheric lens is designed to enhance contrast sensitivity, reduce dependency on glasses, and improve functional vision.

Multifocal lenses

Until recently the vast majority of patients who underwent surgery received a single-vision lens implant which required them to carry around reading glasses. however now Multifocal Accommodative IOLs are available which deliver accommodative-like vision across the entire visual spectrum. Post surgery, in certain patients, a very thin film develops behind the artificial lens. The treatment is a painless 10 minutes OPD procedure wherein the doctor cuts away this film through a process called Yag Laser.

Cataract Services at Susrut Eye Foundation and Research Centre

  • Seven self-contained air-conditioned examination rooms fitted with high end examination units.
  • Medical expertise to handle Small incision cataract surgery, and Phaco-emulsification techniques.
  • Two operation theatres dedicated to cataract surgery with high end microscopes and other support infrastructure.
  • Alcon – Infinity phaco machine for phaco surgeries.
  • In the year 2008, 25732 cataract surgeries are done.