Detached Retina The retina is the light-sensitive tissue found at the posterior portion of the inner eye. It focuses the images that comes through the lens and converts them into electrical impulses which are sent to the brain via the optic nerve. It contains photoreceptor cells (cones and rods) contained in its most sensitive part, the macula. The retina has around seven million cones for detailed daytime vision and color perception; and about 75 – 150 million rods for the dim light (black and white) and peripheral visions. A light-sensitive ganglion cell helps in the reflexive responses to bright light. The retina occupies around 65 percent of the eye’s inner [...]
Eyes and Vision
Trachoma
by Dr. Robert on 23. Aug, 2010 in Eyes and Vision
Also mentioned in Corpus Hippocraticum by the father of methodical medicine, Hippocrates (5th century BC), Trachoma is a bacterial infection affecting the eye and possessing the potential to result in blindness. Trachoma is said to have originated particularly in Egypt and Middle East and therefore it is also known as Egyptian Ophthalmia along with other alternative names like Granular Conjunctivitis, War Ophthalmia and Military Ophthalmia. Sometimes it is also generally referred as just Conjunctivitis. As old as the history itself, Trachoma is prone to every race and community with even disastrous epidemic forms reported. Though, the number of cases has considerably reduced in most of the developed countries, it is [...]
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