Vision - night blindness?

1 Answer

Answer :

DefinitionNight blindness is poor vision at night or in dim light.Alternative NamesNyctanopia; Nyctalopia; Night blindnessConsiderationsNight blindness may cause problems with driving in the evening or at night. People with night blindness often have trouble seeing the stars on a clear night.Common CausesBirth defectsCataractsRetinitis pigmentosaUse of certain drugsVitamin A deficiencyIn some cases, the eyes may simply have trouble adapting to darkness. The problem may not be due to another medical condition. However, it is often linked to myopia(nearsightedness).Home CareTake safety measures to prevent accidents in the areas of low light. Avoid driving a car at night.Vitamin A supplements may be helpful.Call your health care provider ifIt is important to have a complete eye exam to determ

Related questions

Description : Blindness and vision loss?

Last Answer : DefinitionBlindness is a lack of vision. It may also refer to a loss of vision that cannot be corrected with glasses or contact lenses.Partial blindness means you have very limited vision.Complete blindness means you ... . Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Description : Night blindness is caused by deficiency of which vitamin? -General Knowledge

Last Answer : answer:

Description : Night blindness is caused by deficiency of which vitamin? -General Knowledge

Last Answer : Impaired dark adaptation of the eyes, which can lead to night blindness, is an early symptom of vitamin A deficiency. Xerophthalmia (which is nearly pathognomonic) results from keratinization of the eyes.

Description : Deficiency of vitamin-A leads to disease- (A) Night blindness, Xeropthalmia (B) Day blindness (C) (D) -General Knowledge

Last Answer : Vitamin A deficiency can result from inadequate intake, fat malabsorption, or liver disorders. Deficiency impairs immunity and hematopoiesis and causes rashes and typical ocular effects (eg, xerophthalmia, night blindness).

Description : Which vitamin deficiency causes night blindness ?

Last Answer : Night blindness is caused by lack of vitamin A.

Description : What is the lack of night blindness ?

Last Answer : Night blindness is caused by lack of vitamin A.

Last Answer : The symptoms of night blindness are as follows: At first it is difficult to see in low light in the morning and evening , it is called night blindness. Later his eyes become dry ( ... The cornea becomes cloudy Pushing the soft cornea can lead to boils or leaks Eventually becomes completely blind

Last Answer : Vitamin A deficiency is the cause of night blindness.

Last Answer : The cause of night blindness is: Vitamin A deficiency

Description : $ Night blindness is due to deficiency of vitamin "A" ! Actually the term vitamin means vital minerals.

Last Answer : $ Night blindness is due to deficiency of vitamin "A" ! Actually the term vitamin means vital minerals. A. ... is wrong D. If both As and R are wrong.

Description : Are there any eyeglass lenses that help with night blindness?

Last Answer : Yes, you have a few options that help with night blindness. You can get special driving glasses, the lenses can be gradient tinted which lets the driver filter out the glare. You can also wear eyeglasses with a circle of black tape on the inside of the lens of the affected eye.

Description : Which of the following vitamins prevents night blindness?

Last Answer : Vitamin A

Description : Deficiency of thiamine causes (A) Beri beri (B) Scurvy (C) Night blindness (D) Rickets

Last Answer : Answer : A

Description : In adults a severe deficiency of vitamin D causes (A) Night blindness (B) Osteomalacia (C) Rickets (D) Skin cancer

Last Answer : Answer : B

Description : Deficiency of Vitamin C leads to (A) Rickets (B) Scurvy (C) Night blindness (D) All of these

Last Answer : Answer : C

Description : Dictary deficiency of this vitamin leads to night blindness: (A) Retinol (B) Niacin (C) Ascorbic acid (D) Cholecalciferol VITAMINS 125

Last Answer : Answer : A

Description : One manifestation of vitamin A deficiency is (A) Painful joints (B) Night blindness (C) Loss of hair (D) Thickening of long bones

Last Answer : Answer : B

Description : Kwashiorkar is characterized by (A) Night blindness (B) Edema (C) Easy fracturability (D) Xerophthalmia

Last Answer : Answer : B

Description : Character ist ic f ind ing in Gaucher ’s disease is (A) Night blindness (B) Renal failure (C) Hepatosplenomegaly (D) Deafness

Last Answer : Answer : C

Description : Why mothers feed the child with Vitamin A? (a) To prevent rickets (b) To prevent beri-beri (c) To prevent night blindness (d) To prevent polio

Last Answer : Ans:(c)

Description : The deficiency of Vitamin D causes (a) Rickets (b) Night blindness (c) Pellagra (d) Scurvy

Last Answer : Ans:(a)

Description : The deficiency of vitamin A causes – (1) night blindness (2) beriberi (3) rickets (4) pellagra

Last Answer : (1) night blindness Explanation: Nyctalopia (night blindness) is a condition making it difficult or impossible to see in relatively low light. It is one of the first signs of Vitamin A ... , keratomalacia, and complete blindness can also occur since Vitamin A has a major role in phototransduction.

Description : The deficiency of Vitamin A causes – (1) Scurvy (2) Night blindness (3) Beri-Beri (4) Dermatitis

Last Answer : (2) Night blindness Explanation: The most common symptom of vitamin A deficiency in young children and pregnant women is an eye condition called xerophthalmia. Xerophthalmia is the inability to see in low light, and it can lead to blindness.

Description : Night blindness results from the deficiency of — (1) Glucose (2) Vitamin-E (3) Vitamin-B (4) Vitamin-A

Last Answer : (4) Vitamin-A Explanation: Cause of night blindness is a deficiency of retinol, or vitamin A, found in fish oils, liver and dairy products. Nyetalopia also called "Night Blindness" is a condition ... it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases.

Description : Which of the following pairs is incorrectly matched? (1) Vitamin C- Scurvy (2) Vitamin K - Haomorrhage (3) Vitamin A Night Blindness (4) Vitamin E - Rickets

Last Answer : (4) Vitamin E - Rickets Explanation: The deficiency of Vitamin D leads to rickets, a childhood bone disorder where bones soften and become prone to fractures and deformity.

Description : The deficiency of iron in man result in (1) Anaemia (2) Night, blindness (3) Scurvy (4) Rickets

Last Answer : (1) Anaemia Explanation: Anaemia is a condition in which the number of red blood cells or their oxygencarrying capacity is insufficient to meet physiologic needs, which vary by age, sex, altitude, ... , and pregnancy status. Iron deficiency is thought to be the most common cause of anaemia globally

Description : Night blindness is cause by lack of which vitamin?

Last Answer : Vitamin A

Description : Night Blindness is caused due to the defi- ciency of?

Last Answer : Vitamin A

Description : Deficiency of Vitamin-D results in -----? A. night blindness B. rickets (Answer) C. scurvy D. hair fall

Last Answer : B. rickets (Answer)

Description : ALSO CHECK: Short-sight defect could be corrected by a ------- lens? Deficiency of Vitamin-A results in -----? A. Night blindness (Answer) B. rickets C. scurvy D. hair fall

Last Answer : A. Night blindness (Answer)

Description : Severe deficiency of Vitamin D results in -----. A. scurvy B. rickets (Answer) C. night blindness D. osteomalacia

Last Answer : B. rickets (Answer)

Description : A transgenic food crop which may help in solving the problem of night blindness in developing countries is (a) Bt soybean (b) Golden rice (c) Flavr Savr tomatoes (d) Starlink maize.

Last Answer : b) Golden rice

Description : Vitamin A is effective against a. Night blindness b. Beri beri disease c. Gum problems d. None of these

Last Answer : Night blindness

Description : The most striking example of point mutation is found in a disease called (a) Down’s syndrome (b) sickle cell anaemia (c) thalassaemia (d) night blindness.

Last Answer : (b) sickle cell anaemia

Description : Which one of the following is a protein deficiency disease? (a) Kwashiorkor (b) Night blindness (c) Eczema (d) Cirrhosis

Last Answer : (a) Kwashiorkor

Description : Night blindness is caused by the deficiency of vitamin

Last Answer : A

Description : Deficiency of which nutrient causes night blindness

Last Answer : Vitamin A

Description : Vitamin A is responsible for (a) Rhodopsin (b) Night blindness (c) Pellagra (d) Cirrhosis

Last Answer : (a) Rhodopsin

Description : Night blindness is caused due to deficiency of (a) Vitamin A (b) Vitamin C (c) Vitamin B (d) Vitamin D

Last Answer : (a) Vitamin A

Description : Night blindness is due to deficiency of vitamin: (a) A1 (b) A2 (c) D (d)B complex

Last Answer : (a) A1

Description : Night blindness is caused by: a. Central retinal vein occlusion b. Dystrophies of retinal rods c. Dystrophies of the retinal cones d. Retinal detachment

Last Answer : ANSWER: B

Description : The deficiency of vitamin A causes (1) night blindness (2) beri-beri (3) rickets (4) pellagra

Last Answer : night blindness

Description : The deficiency of iron in man result in (1) Anaemia (2) Night blindness (3) Scurvy (4) Rickets

Last Answer : Anaemia

Description : Night blindness results from the deficiency of — (1) Glucose (2) Vitamin-E (3) Vitamin-B2 (4) Vitamin-A

Last Answer : Vitamin-A

Description : Is this poor man’s night vision?

Last Answer : I don’t know what Indiglo uses for luminescence, but in early watches they used a weakened radium compound. The problem was that had enough radioactivity to be dangerous. article So be careful

Description : Would you use night vision eyedrops?

Last Answer : I wouldn’t but I wonder if our Jellies of the dark world will answer this. I would love to see how they would put this to good use. Where are they?

Description : Have you tried those yellowish night vision glasses and like them>?

Last Answer : Those TV commercials are nonsense. I get angry every time I see them. They supposedly slide the glasses over the camera lens and Bam! clear as day. I call BS! Those are merely yellow filters. They are not night vision. Please don’t give those scam artists your money.

Description : Why are class 2 and up night vision goggles illegal in Canada?

Last Answer : answer:According to wikipedia, you should blame this weird US export regulation. I don’t know if this affects Canada though. ETA: Further internetting on my part suggests that it is illegal to purchase night vision from US based companies in Canada.

Description : Why is everything green in night vision goggles?

Last Answer : They were purposefully designed to show green because the human eye can distinguish more distinct shades of green than any other color, making it easier to see details.

Description : Help! Legit resources for dark adaptation, aka night vision, in humans.

Last Answer : I am not sure exactly what your question is asking, so you mean like the pupils dilating?