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