Cataract

WHAT IS CATARACT?

The human crystalline lens, which is clear and transparent is part of the focusing mechanism of the eye. With age, the lens becomes cloudy and opaque, thereby reducing normal vision. Any opacity in the crystalline lens, which leads to decreased vision, is Cataract. The early cataractous lens bends light irregularly, so the images formed are blurred and unclear. When opaque, the cataract may cut off light nearly in total, causing blindness (reversible).

What causes  Cataract?

Ageing is the most common cause. With age, proteins of the eye lens get altered and denatured leading to cataract. Other causes include congenital and developmental anomalies, trauma, inflammation of the eye, metabolic diseases like Diabetes, Hypothyroidism etc.,

What are the common symptoms of Cataract ?

Cataracts makes simple tasks difficult and in some cases impossible to perform. Various types of cataracts can cause different kinds of problems. Some of them are
  • Cloudy or Blurred Vision
  • Changes in one’s perception of colors
  • Sensitivity to bright lamps or sunlight
  • Poor night vision
  • Difficulty in driving especially at night
  • Frequent changes in eyeglass prescription

What are the treatment options for Cataract?

Surgery is the only course of treatment for cataract. There are two options available for cataract surgery

Conventional Cataract Surgery or Extra Capsular Cataract Extraction (SICS/ECCE)

Injections are given near the eye
  • Requires an incision of 7-8 mm
  • The cloudy eye lens is removed in one piece
  • A hard plastic lens is implanted
  • Multiple Stitches are required in ECCE
  • Final glass prescription could take even up to 10 weeks

Advanced Cataract Surgery

Microincision Cataract Surgery
(PHACOEMULSIFICATION)

  • Requires a very small incision of 1.5 – 2.8mm
  • Cataract Extraction with Phacoemulsification is followed by foldable lens implantation
  • Relatively simple and safe procedure
  • Stitchless, bloodless, painless surgery
  • Chances of infection are very low
  • Minimum post surgery precautions and care
  • Quicker healing and recovery
  • Quicker visual recovery

Robotic Cataract Surgery
(Laser Assisted Phacoemulsification)

  • Micro-precision incisions of desired length by Femtosecond Laser
  • Capsulorrhexis of desired diameter by Femtosecond Laser
  • Lens fragmentation of desired shape and numbers by Femtosecond Laser
  • Reduced ultrasound energy for Phacoemulsification
  • Higher safety for the cornea
  • Minimal complications
  • Perfect centration of lens implants
  • Predictable results

When to go for Cataract Removal?

Cataract should be removed as soon as it begins to affect daily activities. With any of the above- mentioned symptoms setting in, it is the right time to go for Cataract removal. DO NOT WAIT FOR THE CATARACT TO GET MATURE as unnecessary delay can lead to avoidable complications and more difficult surgery.

What is the recommended treatment for cataract?

What is phacoemulsification with foldable IOL?

In phacoemulsification (commonly known as Laser), ultrasound power is used to break the hard cataract into minute pieces, which are then sucked out through a small 1.5-2.8mm incision. In Robotic eye surgery, cataract is broken by laser resulting in lesser ultrasound energy usage and healthier cornea. A foldable lens (IOL) of the required power is then implanted. The soft construction allows the lens implant to be folded for insertion through a 1.5 to 2.8mm micro incision. Once in place, the lens unfolds to its regular size of 6 mm.

How soon after cataract surgery, will I be able to see?

In some cases, the patient is able to see almost immediately following the surgery, although most patients experience clear vision after one or two days

Will I need glasses after cataract surgery?

You may need to wear glasses for finer skills. These spectacles have normal lenses unlike thick lenses used in the past. If unifocal IOL is used, near vision glasses are almost always required.

Will activities have to be restricted after cataract surgery?

Normal activities including walking, watching television etc. may be resumed soon after the surgery. However, during the first week after the surgery, it is better to avoid strenuous activities & avoid exposing the eye to water or dust.

Is there any diet restriction after cataract surgery?

There are absolutely no diet restrictions after cataract surgery and you can continue with your normal diet. However, diet regulation advised for other diseases like Diabetes, High blood pressure, etc. must continue.

How long will the procedure take?

With the advanced technique of the cataract surgery, the entire procedure would take about 5-8 minutes. All procedures are done with advanced operating microscopes and latest Phaco machines

Multifocal/Trifocal IOL:

The latest multifocal IOLs are designed to provide good distance vision, intermediate and near vision. They reduce the patient’s dependence on glasses for routine activities. Unlike conventional IOL it has multiple zones of different focal lengths that bring everything from near to far into clear focus. These lenses can be used only for suitable patients.