Cataract is clouding of the eye’s natural lens. It is a natural process of ageing. Every individual gets it sooner or later. Cataract impairs focusing of light on the retina and hence blurs vision.
Old age is the most common cause of cataract. It also sometimes occurs relatively early in life due to factors such as injury, excessive sunlight. Toxic chemicals, changes in the body's metabolism, drugs or other eye diseases, such as glaucoma and inflammation. There can also be hereditary predisposition to earlier occurance of cataracts.
1. Senile Cataract (Due to old age)
2. Congenital Cataract (occurs by birth)
3. Traumatic Cataract (Due to eye injuries)
4. Steroid Induced Cataract (side effects of drug)
People with cataract. even when wearing glasses, typically have:
1. Glare at night
2. Difficulty in recognising colours
3. Foggy / smoky vision
4. Frequent changes in their glass prescription
There are no medicines with proven efficacy to prevent or to treat cataract. The only effective treatment is surgical removal of cataract. Diabetes, hypertension and other general health problems are not a contraindication for cataract surgery. The cataract need not 'mature' for surgery.
When is treatment advised?
The decision to treat a cataract is made together by the eye care practitioner and the patient. It is based on the degree to which the cataract is impairing vision and the effect of the impairment on the patient's quality of life.
There are 2 treatment options available for cataract:
1. ECCE (conventional method)
I. Requires an incision of 9 mm
II. The surgeon removes the clouded lens in one piece
III. A hard rigid lens is implanted
IV. Multiple stitches are required
V. Increased risk of post-operative distorted vision and complications
VI.Most patients require glasses for both distance and near vision
2. Phaco Emulsification
The clouded cataractous lens is extracted by fragmenting it into tiny pieces with ultrasound energy and aspirated out with a suction device. The cataract is removed through a small self-sealing wound. There are no sutures applied on the eye of patient. The patient will need glasses for near vision.
I. Requires no stitches (Incision 2.8 mm)
II. Is non-invasive and painless
III. Shorter overall duration of surgery
IV. Less post operative discomfort
V. Minimum post operative restrictions
VI. Early rehabilitation
VII. Less induced astigmatism
VIII. Perfect early restoration of vision
1. Topical non-stitch, non-pad Phacoemulsification Cataract operation.
2. Phaco Emulsification units from Abbot Medical Optics U.S.A
3. TAKAGI ZOOM operating microscope for micro surgical procedures from Japan
4. Implantation of Specialised lens like Multifocal & Toric lenses
5. Comfortable ward facility for outstation patients
6. YAG Laser Capsulotomy for After Cataract
7. Ultrasound A-scan
Dr. Rakesh Kumar
Netra Nidan Eye Hospital
A/37, Sachivalya Colony, In front of Kendriya Vidyalaya Gate no.2, Kankarbagh, Patna 800020.