A lack of vitamin A during pregnancy can cause night blindness in the mother, problems with the placenta and low birth weight of newborns.
42.
Appaloosas that are homozygous for the leopard complex ( LP ) gene are also at risk for congenital stationary night blindness ( CSNB ).
43.
Since the outer area of the retina is made up of more rods than cones, loss of peripheral vision often results in night blindness.
44.
One condition, night blindness, occurs because vitamin A is a necessary to the body's synthesis of rhodopsin, which the retina needs to detect dim light.
45.
Many patients are from Latin America, although medical treatment for retinitis pigmentosa, often known as night blindness, has attracted many patients from Europe and North America.
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Lynch said the studies focus on conditions from narcolepsy, a sleeping disorder that affects Dobermans, to a type of night blindness that occurs in other species.
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Night blindness caused by VAD has been associated with the loss of goblet cells in the conjunctiva, a membrane covering the outer surface of the eye.
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The earliest clinical sign of progressive retinal atrophy is " night blindness . " The dog cannot see well in a dimly lit room or at dusk.
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The ancient Egyptians knew that feeding liver to a person may help with night blindness, an illness now known to be caused by a vitamin A deficiency.
50.
Vitamin A is the only vitamin of which I know offhand which affects vision, but the symptoms of deficiency include night blindness and corneal degeneration, not photosensitivity.
