A project on night blindness Essay

Introduction iniquity blindness also known as Nyctalopia is not a diagnosis, alone rather a symptom of an underlying disorder. People with night blindness (also called impaired dark adaptation) see poorly in the darkness but see normally when adequate amounts of light are present. The condition does not in truth involve true blindness, even at night. Recovery is fairly rapid when in proceeds is reduced. night blindness is commoner than one can expect it to be.CausesThere are many causes of night cecity. shadow blindness can be linked to a variety of conditions caused by impaired liver function, which in bit reduces vitamin A in the body. Vitamin A deficiency is a common cause for night blindness. Some stack are just born with it. Many people who are alcoholics or drink a take may also get Night Blindness because drinking can wrong your liver, which makes it easier to pick up an infection of any kind.SymptomsSymptoms include difficulty seeing when driving in the evening or at night, poor vision in reduced light. You may have a feeling that your eyes take longer to adjust to seeing in the dark. Initially there is slight difficulty in seeing in dim light later this progresses. The field of vision becomes narrow then later limitations in day vision. If no medication is taken blindness can occur. Toxic symptoms can occur with a large inhalation of Vitamin A. This is called Hypervitaminosis A, which leads to loss of appetite, a dry, itchy skin often with peeling, intense headaches and an enlarger liver.Typical SufferersNight Blindness starts at an early age, around 15 years and progresses into adulthood. Typical sufferers of Night Blindness are the elderly, teenagers and alcoholics. Many younger kids maybe born with night blindness it mayalso be an power of Retinitis Pigmentosa. Also Night Blindness can also occur if there is a poor economic consumption of Vitamin A. Some people can be born with Night Blindness because it is a genetic disorder and runs in families.TreatmentNight Blindness can be handleed with therapeutic dosages of the vitamin A. Some types of damage to the retina, such as Retinitis Pigmentosa, are usually irreversible. Many treatments like Vitamin A tablets are being given, but their definite effect has not been documented. Taking supplements of Vitamin A in eye drops is also used to treat Night Blindness. Also just eating healthy and eating more Vitamin A products can correct your eyesight at night, but it is not a permanent cure for Night Blindness.PreventionPreventions of Night blindness can be a larger intake of Vitamin A. Eating leafy green vegetables such as spinach that is rich in Vitamin A. It contains more vitamin A than most other green vegetables. This vitamin promotes harvest-home and health, specially the health of the eyes. Lack of this vitamin may lead to night blindness. Spinach is thus an effective feed remedy for the prevention and treatment of night blindness. Also eating animal livers, m ilk, and yellow vegetables can amend the intake of vitamin A in your body. These vegetables, which contain carotene, that is a chemically related substance that is converted to vitamin A in the body.ConclusionIf you think you might have Night Blindness and are seeing both(prenominal) of the symptoms you should start eating more Vitamin A. Having too much vitamin A can be bad for your body, because Vitamin A is one of the few vitamins in which excess produces definite and severe effects. Recovery is fairly rapid when intake is reduced. There are many varieties of Night Blindness, some begin earlier and progress faster. Night Blindness is serious and is commoner than one can expect it to beBibliographyGottlieb, William. The Doctors book of home remedies. Prevention powder store Health Books. 2000. Ch. 99Medical Encyclopedia. 20 Feb. 2003Night Blindness. 20 Feb. 2003Night Blindness Gene. 16 Feb. 2003Upgren, A.R. Night Blindness Light pollution, the environment, and our experience of nature. The Amicus Journal Winter. 1996. Pp. 22-25Vitamins. 16 Feb. 2003