Keratomalacia is -
Keratomalacia is due to deficiency of vitamin A.
It is not relatively benign. Larger stromal defects in keratomalacia commonly result in blindness.
Earliest symptom is nightblindness and earliest sign is conjunctival xerosis.
Retinitis pigmentosa does not cause keratomalacia.
Occurs due to Vit-A deficiency
Relatively benign condition
First feature of Vit- A deficiency
Also seen in retinitis pigmentosa