EYE PROBLEMS

EYE FLOATERS Some of you might have encountered tiny specks or strands floating in front of you but just can’t get rid of them? This might most probably be…. FLOATERS!  You might find it especially common when looking directly at a light background, or when feeling light-headed. The perception of floaters is medically known as myodesopsia. Floaters are those tiny spots, specks, flecks and “cobwebs” that drift aimlessly around in your field of vision. Sometimes you may momentarily confuse them with dust or tiny insects floating across in front of the eye.                                                                    Fig. 1 Your eye is filled with a jelly like substance called “vitreous Gel” (Fig.2). Light entering the eye, has to pass through this gel to reach the retina. In childhood and adulthood, the vitreous has a gel-like consistency. Any eye condition in which the clarity of the vitreous humor is altered can produce the symptom of eye floaters. As one

MYOPIA, RETINAL BREAKS, RETINAL DETACHMENT   EYE - A CAMERA Our eyes are living cameras. Eye has a film in the form of retina. It also has focusing system in the form of cornea and lens which make the light rays to focus on the retina. The following figure shows the similarity between eyeball and   camera: NORMAL VISION The light emerging from the objects we see, is made to focus on retina by eye’s focusing system (cornea and lens). Thus an image is formed on retina which is transferred to   brain by optic nerve, where the photo is printed and vision is perceived.     REFRACTIVE ERRORS- Myopia, Hypermetropia,Astigmatism If the light is focused on the retina, we get a normal crisp vision. If in case, the light is focused ‘in front’ or ‘behind’ the retina, we get a defocused blurred image. These conditions are called refractive errors. In these conditions, we try to bring the focus back on retina by glasses or contac