Regional Institute of Ophthalmology, Thiruvananthapuram
The Regional Institute of Ophthalmology, Thiruvananthapuram is the highest government level referral hospital in the field of ophthalmology in Kerala state. As of 2021, it is the only Regional Institute of Ophthalmology in Kerala. The hospital is located near the General Hospital at Red Cross Road in Thiruvananthapuram city. Sunayanam, the first mobile eye hospital in Kerala operates under  Thiruvananthapuram Regional Institute of Ophthalmology. Daily about 600 people are consulted as referrals, and about 200 people come in directly for treatment without a referral.