Refraction
Cataract
Cataract is caused by the clouding of the natural lens of the eye and usually develops as a result of old age, but may occur in infants and young children too.
It leads to blurred vision, glare, and sensitivity to bright lights.
As the disease progresses, it causes a painless, gradual decrease in vision, affecting daily activities like driving and reading.
Who Is At a Risk of Cataract?
- People above 60 years of age
- People with prolonged use of steroids
- Overexposure to ultraviolet rays
- People with Diabetes
- Eye injuries
Diagnosis
To determine whether you have a cataract, your doctor will review your medical history and symptoms, and perform an eye examination. Several tests may be conducted:
Visual Acuity Test
Measures how well you can read letters using an eye chart. Each eye is tested separately.
Slit-Lamp Examination
A microscope with a focused beam of light helps examine the cornea, iris and lens.
Retinal Exam
Eye drops are used to dilate pupils to examine the retina and detect cataract changes.
Cataract Treatment
There is no medication for cataract. The only effective treatment is surgery. Modern cataract surgery is safe, painless and does not require injections.
Surgery is done using a Phacoemulsification machine with intra-ocular lens implantation. The incision is very small (2.2–2.8 mm) and usually stitch-free.
Dr. Karan Bhatia is an expert cataract surgeon experienced in modern techniques.
When Should I Go for Surgery?
Earlier patients waited for cataract to fully mature, but this is no longer recommended.
Surgery can be done when it affects daily activities, causes blurred vision, glare or halos around lights.
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