| Night blindness is an early sign of vitamin A deficiency, followed by abnormal dryness of the eye and ultimately scarring of the cornea, a condition known as xerophthalmia. |
| This product has lost most of its vitamins A and D, which are needed to ward off xerophthalmia and rickets. |
| In xerophthalmia, the eyes are sensitive to light, the secretion of lubricating tears is stopped, and the eyelids become swollen and sticky with pus. |
| Of these, 9 children had overt vitamin A deficiency as evident by the presence of xerophthalmia. |
| Prolonged lack of vitamin A leads to deterioration of the eye tissue through progressive keratinization of the cornea, a condition known as xerophthalmia. |
| In the early 1990s, results from observational studies showed an increased mortality among children with clinical xerophthalmia. |
