It is the lack of vision. It may also refer to a loss of vision that cannot be corrected with glasses or contact lenses. Partial blindness means very limited vision and complete blindness is not being able to see anything at all. The most common causes are: cataracts, glaucoma, age related macular degeneration, corneal opacification, childhood blindness, refractive errors, trachoma, diabetic retinopathy and birth defects.
HOW IS BLINDNESS DIAGNOSED?
Ophthalmologists may perform a complete eye examination with the help of optical devices. He may also check on the symptoms, patient’s history and family history.
HOW IS BLINDNESS TREATED?
There are many ways to treat blindness. The eye specialist may suggest usage of eyeglasses or contact lenses. A surgery may be advised in cases that require modifications. The doctor may prescribe medication as a part of the treatment. In cases of complete blindness, there is no treatment. However, by learning new skills like braille, one can have a new approach to life.
DID YOU KNOW?
Blind people exercise their sense of smell to identify areas that they have already been to.