Ophthalmology Xerophthalmia Grade X-3A – A Corneal xerosis B Bitot spot C Corneal ulcer involving less than 1/3 of corneal surface D Corneal ulcer involving more than 1/3 of corneal surface 💡 Explanation Xerophthalmia Grade X-3A - ✓ Correct Answer: C. Corneal ulcer involving less than 1/3 of corneal surface