acquired night blindness

A nutritional deficiency disease that is characterized by vitamin A deficiency causing poor adaptation of the eyes to low levels of light, and has_material_basis_in lack of vitamin A such that rhodopsin, a light sensitive retinal pigment, cannot be regenerated

A nutritional deficiency disease that is characterized by vitamin A deficiency causing poor adaptation of the eyes to low levels of light, and has_material_basis_in lack of vitamin A such that rhodopsin, a light sensitive retinal pigment, cannot be regenerated.