Retina is the photosensitive inner lining of the eye (similar to the photographic film of a camera). When light enters the eye the image is first formed on the retina and then sent to the brain via the Optic Nerve
Will someone need to accompany me for the checkup? – the pupillary dilatation can often cause significant blurring of vision for 3-4 hours. It is therefore recommended not to drive after the test. It is for the same reason that we often ask someone to accompany the patient for the test.(especially patients with already poor vision)
Yes. Why did my diabetologist advise me a retina/fundus examination? – to check for diabetic retinopathy, a disease that can permanently damage vision.
It affects vision by producing swelling In the macula (called macular oedema) or by producing new blood vessels in the eye (neovascularization) which can then lead to vitreous haemorrhage or retinal detachment.
Yes it is preferable. People with numbers are more prone to develop weak areas (Lattice Degeneration) and retinal holes. They are also at higher risk of retinal detachment, especially if there is also a family history.
Age related macular degeneration (ARMD) refers degenerative changes occurring in the central retina characterized by deposition of a yellow material called Drusen.
ARMD is of 2 types: Dry or Wet
In wet ARMD, there is a collection of fluid or blood under the retina.
VEGF is the short form of vascular endothelial growth factor. VEGF is an important chemical mediator for angiogenesis ( blood vessel formation) and permeability ( leakiness )
Avastin (Bevacizumab) is an anti-VEGF drug injected into the eye for treatment of diseases like WET ARMD and macular oedema due to diabetes or retinal vein occlusions. It is not FDA approved.
Accentrix ( ranibizumab) previously known as Lucentis is the FDA approved and current GOLD STANDARD for treatment of wet ARMD worldwide. It is also approved for macular oedema due to diabetes and vein occlusions. It belongs to the antiVEGF group.