Retina is the neurosensory layer of the eye which is present inside and at the back of the eye. It is on this layer that an image seen by the eye is formed, which is converted to nerve signals and transferred to the brain. Hence person with a normal eye but with a retina disease will have poor vision.

The common disease affecting the retina are :-

  • Diabetic Retinopathy

  • Retinal Detachment

  • Macular Degeneration Print

a. Age related Macular Degeneration (ARMD)

b. Dry type of age related Macular Degeneration

c. Wet type of age related Macular Degeneration

Diabetic Retinopathy

Retinal detachment (RD) is a disorder of the eye in which the retina peels away from its underlying layer of support tissue and can lead to vision loss and blindness. It is a medical emergency. RD can occur due to a hole, tear, or break in the retina or inflammation and trauma.

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​Retinal Detachment

Diabetic retinopathy (DR) is a common vascular retinal disease affecting about 40% of type 1 diabetics and 20% of type 2 diabetics. Duration of the diabetes is the most important risk factor for DR .

Treatment for DR includes Laser photocoagulation, Intra ocular injections (ANTI-VEGF) and Surgical Treatment.

 

​Age related Macular Degeneration (ARMD)

Age-related macular degeneration (ARMD) is the most common cause of irreversible vision loss in people over age of 60 years. Retina is the seeing tissue of the eye. When the focused light hits the retina, a picture is taken.

The retina has two parts: The peripheral retina and central part called macula. This is the only part of the retina capable of producing a sharp and crisp image, which enables us to read, write, watch television and drive. There are two main types of macular degeneration, "dry" and "wet"

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Normal Vision                                                                                                Macular Vision 
Objects are unobstructed and clear                                                Objects are obstructed and unclear

                                                                                                                                        
Dry type of age related Macular Degeneration

This is the most common type of age related macular degeneration. The round deposits called drusen (degenerated material) appear beneath the retina. A few small drusen cause no decrease in vision. However, if any large drusen develop, vision may be decreased. The dry type of macular degeneration presents with a slow, progressive loss of vision. In this type the vision remains stable and good for a longer period of time. Unfortunately there is no treatment for dry age related macular degeneration.

Wet type of age related Macular Degeneration

In this type, abnormal blood vessels grow beneath the macula, they leak and bleed.
The "wet" form of macular degeneration can cause more severe visual loss.
Vision may suddenly become distorted or blurred.

 

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