The Eye

Glaucoma is a  condition of high pressure within the eyeball causing gradual loss of sight. According to the World Health Organization, Glaucoma is considered as the second leading cause of blindness (behind cataracts)in the global level . In simple words, Glaucoma is a complicated eye disease caused by high eye pressure, and if left untreated causes permanent vision loss or blindness.It is called the “Sneak Thief of Sight” or “Silent Thief of Sight”. How the Eye works? Eyes The eye works very much like an old-style camera. In the camera, the light comes in through the shutter, is focused by the lens, falls onto the film and them we take it to be processed. In the eye, light comes in through the cornea and pupil. It is focused by the lens, falling onto the film in the eye (the retina) and then goes, via the optic nerve (the nerve of sight), to the brain (the processor) for developing. The shape of the eye is achieved through the circulation of a clear fluid (aqueous

Up to 90% of school leavers in major Asian cities are suffering from myopia(short-sightedness)and scientists are blaming their academic lifestyles. Natural light exposure is just one potential factor in a child's eyesight. The time children spend outdoors could be linked to a reduced risk of being short-sighted, research suggests.   Researchers say the "extraordinary rise" in the problem is being caused by students working very hard in school and missing out on outdoor light. They also found a strong link between short-sightedness and close reading. The work of Professor Ian Morgan, from the  Australian National University in Canberra , and colleagues, suggest the condition - also known as myopia - is due more to environmental than genetic factors. The scientists told  The Lancet medical journal  that up to one in five of these students could experience severe visual impairment and even blindness. According to the research, the problem is being caused by a

Lasik (Laser-Assisted in SItu Keratomileusis) is  a type of refractive surgery. In simple term,  Lasik is a laser eye surgery  performed by an ophthalmologist using a laser  for the correction of  myopia ,  hyperopia , and  astigmatism . In other words,  LASIK is considered as an effective remedy for   enhancing the visual abilities of an individual.  LASIK is an  alternative to  eyeglasses  or  contact lenses . Correction of refractive errors using Lasik type of refractive surgery. What is Refraction? The cornea is a part of the eye that helps focus light to create an image on the retina. It works in much the same way that the lens of a camera focuses light to create an image on film. The bending and focusing of light is also known as refraction .  Humans see and focus on objects through retina and cornea where retina acts as a focusing device of a camera. Usually an individual with normal visual abilities has matching retina and cornea as per the size and shape o

Eye strain is not avoidable in today's life because all our work is locked around the technology.While watching television, computer or while studying or reading books for hours together eye strain will occurs naturally. “ Eyes are delicate and precious ,” says Dr. Andrew Iwach, spokesperson for the American Academy of Ophthalmology (AAO). “ Just a touch of maintenance will keep them going for years.” Tips to reduce eye strain  §   When your eyes are feeling tired or for every 20 to 30 minutes of work,  look at a distant object and blink several times . This will change the focal length of your eyes and helps in better focusing. §   You can  massage your eyelids, the area around your eyes, including the muscles over your temple, upper cheek and eyebrows  once or twice a day, for around 10 seconds each time. The massage will help your muscles relax, stimulate your tear glands as well as reduce your symptoms of eye strain. §  Any focused work means you don’t blin

1.The study of eye is called Ophthalmology. 2.The tears in the eyes are produced by the lacrimal  glands. 3.Watching television in total darkness is not a good idea - your eye constantly has to shift focus to follow    the images, and the contrast between the bright screen and the dark room may cause eye strain. 4.The optician is a person who sells and fits eyeglasses, sunglasses, and specialty eye wear accordingly to the  ophthalmologist's prescription. 5.The color of the eyes is determined by the iris. 6.The different color shades of the human eye are green,blue,yellow,brown,grey etc 7.Some people are born with eyes of two different colors, a condition known as heterochromia. 8.The human eye is about 2.5 cm in length and weighs about 7 grams. 9.The eye is about as big as a ping-pong ball and sits in a little hollow area (the eye socket) in the skull. 10.The human eye has more than a million, light-sensitive cells. 11.Our eye lids shut automatically and protect