Cataract Surgery
What is Cataract Surgery?
What is a Cataract?
A Cataract is a clouding of the normally clear lens of the eye. Ageing is the most common cause of cataract. Other causes include trauma, medications such as steroids, diabetes, prolonged exposure to ultraviolet light. Occasionally babies are born with a cataract.
Cataract Surgery
The cloudy lens of the eye is replaced with an artificial, foldable, specially measured intraocular lens (IOL) to restore vision. The procedure Phacoemulsification removes the cataract through a very small tunnel incision under topical anaesthesia (no injection, no stitch, no patch after surgery). It is usually a painless, bloodless procedure with rapid visual recovery. It is carried out as an outpatient daycare procedure and allows the patient to resume his routine in a week’s time
Symptoms of Cataract
Blurring of vision, Glare, Difficulty in night vision, Double vision, Frequent change of glasses, Better near vision without the need for reading glasses
Step by Step Procedure
How Cataract Surgery Is Performed?
Step 1
Access to Cataract :
Make a few small incisions
Step 2
Removal :
Breakup and remove the clouded lens
Step 3
Replacement :
Implant a new, clear intraocular lens
Cataract Surgery
The cloudy lens of the eye is replaced with an artificial, foldable, specially measured intraocular lens (IOL) to restore vision. The procedure Phacoemulsification removes the cataract through a very small tunnel incision under topical anaesthesia (no injection, no stitch, no patch after surgery). It is usually a painless, bloodless procedure with rapid visual recovery. It is carried out as an outpatient daycare procedure and allows the patient to resume his routine in a week’s time
What is Robotic or Femto Second Laser assisted cataract surgery?
This is an advanced form of cataract surgery that the initial few steps of the surgery are done using Femto second laser namely the wounds, the capsular rhexis or the opening of the lens capsule and the fragmentation of the cataract.
After the femto second laser part of the surgery the patient is then shifted and the fragments are then removed by the phaco emulsification. This is then followed by the implantation of Intra Ocular Lens. Femto Second Laser assisted cataract surgery ( FLACS) is advantageous in cases of Sub luxated cataract, advanced brown cataracts or white cataracts. Where some of the initial stages may make the surgery challenging.
Cataract Surgery
The cloudy lens of the eye is replaced with an artificial, foldable, specially measured intraocular lens (IOL) to restore vision. The procedure Phacoemulsification removes the cataract through a very small tunnel incision under topical anaesthesia (no injection, no stitch, no patch after surgery). It is usually a painless, bloodless procedure with rapid visual recovery. It is carried out as an outpatient daycare procedure and allows the patient to resume his routine in a week’s time
Types of Multifocal IOLS
1. Trifocal IOL
These lenses have concentric rings on them and they redistribute the light entering the eye into a distance focus and intermediate focus and a near focus. These lenses give very good near vision however the side effects or the trait of is halos around light at night compromised night time vision and contrast sensitivity.
2. EDOF Or Extended Depth of Focus IOL
These IOLs have a central refractive zone and they provide good intermediate and good distance vision without compromising the night vision and do not cause halos & glares as to the extent that trifocal IOLs do. For people who drive at night EDOF lenses may be a better option whereas those who requires very good near vision trifocal IOLs may be a better option.
3. Enhanced Monofocal IOLs
These IOLs are Monofocol IOLS but the increase the spherical aberration and give slightly better intermediate vision than regular monofocal IOLs. They do not achieve complete spectacle independence like multifocal IOLs however they are a small step up then regular monofocal IOLs.
This is an advanced form of cataract surgery that the initial few steps of the surgery are done using Femto second laser namely the wounds, the capsular rhexis or the opening of the lens capsule and the fragmentation of the cataract.
After the femto second laser part of the surgery the patient is then shifted and the fragments are then removed by the phaco emulsification. This is then followed by the implantation of Intra Ocular Lens. Femto Second Laser assisted cataract surgery ( FLACS) is advantageous in cases of Sub luxated cataract, advanced brown cataracts or white cataracts. Where some of the initial stages may make the surgery challenging.