Cataract Eye Surgery
What is Catracts ?
Cataract is a clouding of the eye's lens - the part of the eye responsible for focusing light and producing clear, sharp images. A cataract occurs when the crystalline lens of the eye becomes cloudy or opaque as a result of age, illness, or trauma. This cloudiness can interfere with the eye's natural ability to direct light and focus an image on the retina. As a result, individuals with cataracts frequently experience a loss of vision.
The most common cause of cataract is the deterioration of the normal structure within the lens of the eye with age. There may be other causes like diabetes, kidney disease, glaucoma, smoking, eye injuries, infection, and inflammation inside the eye. Prolonged use of certain medications can also lead to cataract formation...
Symptoms
Patients with cataracts often experience the following symptoms : -
- Blurring of vision.
- Glare, or sensitivity to light.
- Double vision in one eye.
- Frequent changes in eyeglass prescription.
- Difficulty in reading in low light.
- Declining night vision.
- Fading or yellowing of colors.
Types of cataract
Secondary cataract : - Cataracts can form after surgery for other eye problems, such as glaucoma. Cataracts also can develop in people who have other health problems, such as diabetes. Cataracts are sometimes linked to steroid use.
Traumatic cataract : - Cataracts can develop after an eye injury, sometimes years later.
Congenital cataract : - Some babies are born with cataracts or develop them in childhood, often in both eyes. These cataracts may be so small that they do not affect vision. If they do, the lenses may need to be removed.
Radiation cataract : - Cataracts can develop after exposure to some types of radiation.
How is a cataract detected ?
Cataract is detected through a comprehensive eye exam that includes : -
Visual acuity test : - This eye chart test measures how well you see at various distances.
Dilated eye exam : - Drops are placed in your eyes to widen, or dilate, the pupils. Your eye care professional uses a special magnifying lens to examine your retina and optic nerve for signs of damage and other eye problems. After the exam, your close-up vision may remain blurred for several hours.
Tonometry : - An instrument measures the pressure inside the eye. Numbing drops may be applied to your eye for this test.
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