Vision Abnormality Examples 

Vision Pathological Abnormality (2)

Cataract

 

There are several different types of cataract, and each type can affect the vision in different ways. If the lens in an eye has a cataract, there is usually more than one type of cataract present. Cataracts generally can blur the vision and can change a glasses prescription. They also can create glare problems, sometimes worse during the day and sometimes worse at night. Other visual effects of cataract include changes in color vision, halos around lights, and double vision.

The three typical types of cataract found in adults are:

• Nuclear sclerotic cataract - this is a gradually changing cataract which diffusely blurs the vision and can disturb the color vision.

• Cortical cataract - this is a haze present usually on the front surface of the lens which often is in a wedge shape. This can cause certain parts of the vision to be blurry, and can create glare problems.

• Posterior subcapsular cataract - this is a cataract found on the back surface of the lens. It can cause severe glare problems and significant loss of vision.

 

  Clear image

 

CATARACT VIDEO