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Night blindness is cause by lack of which vitamin? |
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- Which vitamin is important for vision? A. Vitamin B1 B. Vitmain C C. Vitmain E D. Vtimain AThe Deficiency of which nutrientcauses night blindness?A. Vitamin KB. Vitamin CC. ProteinsD. Vitamin AWith better knowledge of the impact of nutrition on vision, make recommendations for a healthier diet and lifestyle. The benefits will go beyond vision to overall health.
- The is the region of the eye that controls the amount of light that enters.a. cornea b. pupil c. lensd. fovea e. retinaA Physician Assistant student on clinical attachment in the Northern part of Ghana noted a high incidence of people reporting difficulty with night vision which has been due to lack of vitamin A in their diet. Explain why deficiency of vitamin A causes poor night vision or night blindness.Choose the best ? Olfactory bulbs are located a. on the tongue. d. in the aorta.b. in the nasal cavity. e. None of these are correct.c. in the brain stem.
- What could be the reason why vitamin A is essential for visual acuity? Select the correct response: • It is converted into the pigment in the iris that absorbs harmful UV radiation. • It is an integral part of the visual pigment in the retina called rhodopsin. • It neutralizes free radicals that can damage the retina of the eyes. • It serves as lubricant in the vitreous humor of the eyes.Why do people over 55 often need reading glasses? a. Their cornea no longer focuses correctly. b. Their lens no longer focuses correctly. c. Their eyeball has elongated with age, causing images to focus in front of their retina. d. Their retina has thinned with age, making vision more difficult.I. Also known as the bubble boy illness? A. Rheumatoid Arthritis B. Lupus C. Asthma D. SCID II. This type of diseases affects the optic nerves, which is essential for proper vision. A. Nystagmus B. Glaucoma C. Color Blindness D. Cataract III. Inability or decreased ability to see colors it usually caused by impairment of cones. A. Color Blindness B. Cataract C. Nystagmus D. Blindness IV. This refers to a method in which a person is protected from a disease by receiving a vaccine. A. Vaccination B. Immunization C. Inoculation D. Immunity booster