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Xerophthalmia is a medical condition in which the eye fails to produce tears, typically due to a severe deficiency in Vitamin A. If left untreated, it can progress from simple dryness to permanent blindness.
read more about xerophthalmia ...The earliest symptom is "nyctalopia" (night blindness). As the condition worsens, it leads to the formation of "Bitot's spots", foamy accumulations of keratin on the conjunctiva, and eventually corneal softening known as "keratomalacia."
While rare in developed nations, xerophthalmia remains a leading cause of preventable childhood blindness in developing regions where access to diverse nutrition is limited.
Treatment focuses on high-dose Vitamin A supplementation, which can rapidly reverse early symptoms. Preventive measures include dietary fortification and education on Vitamin A-rich foods like leafy greens and carrots.
Early intervention results in a full recovery. However, once corneal scarring or melting occurs, the vision loss is often irreversible, highlighting the need for prompt diagnosis.
No. While both involve dryness, standard dry eye is usually environmental or age-related, whereas xerophthalmia is specifically caused by nutritional deficiency.
Yes, if caught in the early stages, Vitamin A therapy can completely restore eye health and night vision.
Children and pregnant women in areas with limited access to animal products or orange/yellow vegetables are at the highest risk.