Human vision is dependent on the successful interaction of optical structures in the eye. When these structures malfunction, vision disorders occur. The key to treatment and resolution of these disorders is early detection through regular eye exams and prompt consultation with an ophthalmologist when problems occur.
The main eye disorders are-
Cornea is the clear front part of eye. It is like a window that controls and focuses the light coming into the eye. If cornea has an irregular shape, the light does not focus properly. Everything looks blurry. This is a refractive error.
- Myopia( nearsightedness)
Clear vision close up but blurry in the distance
- Hyperopia( farsightedness)
Clear vision in the distance but blurry close up
Inability to focus close up as a result of aging
Focus problems caused by the cornea
A cataract results when the normally transparent lens of the eye clouds, blurring vision.
It occurs when the macula of the eye lose its proper structure .The blood vessels and the proteins present in the body including cholesterol affect the eye sight of the people suffering from this disease.
Glaucoma is a disease of the optic nerve. If the aqueous humor does not drain properly, intraocular pressure builds, damaging the optic nerve and causing blind spots to develop.
Diabetic retinopathy is damage to the eye’s retina that occurs with long-term diabetes.
Strabismus is a physical defect. One or both of the eyes are misaligned and point in different directions.