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Retinal Detachment


 

Retinal detachment is a condition in which the retina is separated from its normal position, leading to a schism between the neurosensory layer and the layer of retinal pigment epithelium. It is immediately blinding should it involve the central portion of the retina(the macula and fovea).

There are three different types of detachment :
Rhegmatogenous :

In this type of detachment, there is a full thickness defect seen in the retinal tissue(known variously as a tear, break or hole) leading to an ingress of fluid and subsequent detachment of the retina. Its onset is heralded often by sudden flashes of light or sudden perception of floaters in front of the eye. In large detachments, a curtain like opacity might descend in front of the eye. If involving the foveal centre, it may lead to blindness.

Tractional :

This form of detachment is characterized by a 'pull' on the retina by condensed vitreous and/or new vessels. The vitreous is the jelly between the crystalline lens and the retina. This type of detachment is commonly seen in diabetics and patients with retinal vasculitis(swelling around retinal blood vessels) or trauma(injury).

Exudative:

An inflammatory process, ocular or otherwise, leads to an accumulation of fluid beneath the retina. This is probably the only form of retinal detachment that can be treated with medicines.The only treatment option for the other types of detachment is surgery.

Retinal detachment is an emergency if the macula(the most important part of the retina for vision) is not yet involved. Early diagnosis and treatment are important for salvaging vision.

Surgery can be either EXTERNAL (SCLERAL BUCKLE) or INTERNAL(VITRECTOMY).
Contact us if you have any queries on retinal detachment or its management.

 

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