Hypertension - High blood pressure as commonly known, also affects the retina. Due to constant high blood pressure and due to long standing disease vessels with in the retina constricts causing reduced blood flow to retina. In severe cases a major or blood vessel is blocked and sudden severe drop in vision.

Drop in vision may be due to

1.  Branch retina vein occlusion

2.  Hemi Retinal Vein Occlusion

3.  Central Retinal Artery Occlusion

4.  Branch Retinal Artery occlusion

5.  Central Retinal Artery Occlusion

with yearly dilated retinal examination, the changes in the retinal blood vessels can the noted to guide physician for adequate control of Blood pressure.

When disease like vein occlusion sets in with early management with Intravitreal injection and LASER, severe and permanent vision loss can be prevented.