OBJECTIVE To examine the relationship between homestead food production and night blindness among pre-school children in rural Bangladesh in the presence of a national vitamin A supplementation programme. DESIGN A cross-sectional study. SETTING A population-based sample of six rural divisions of Bangladesh assessed in the Bangladesh Nutrition Surveillance Project 2001-2005. SUBJECTS A tot...

Response properties of rod and cone systems were assessed in a patient with an acquired form of night blindness associated with a metastatic cutaneous malignant melanoma. The night blindness, a sensation of shimmering lights, and selective reductions in the amplitudes of both rod and cone electroretinographic (ERG) b-waves were present before and after chemotherapy, confirming that this disorde...

Night-blindness was attributed to scurvy by Capt. Cook, even though it failed to clear up like other scorbutic symptoms when the patient got fresh lemons. Baraffield noted in 1814 that fresh meat and vegetables,added to the diet, improved night vision, whereas antiscorbutics did not ; yet he too regarded it as a manifestation of scurvy. The full picture of vitamin A deficiency, as it affects th...

The eye is cocainised as for cataract operationWith the usual aseptic precautions i c.c. of sterile 10 per cent, salt solution is injected subconjunctival^ ?n each side. Puncture of the conjunctival vessels js avoided. The eyes are bandaged. The bandage! lS removed at night, when to the satisfaction of both the doctor and the patient night blindness will be found to have disappeared. There is p...