OHIP covers the cost of one major eye exam, including both vision and general eye health, once every 12 months for those under 19 or over 65. Minor assessments are also included if needed. If you are between 20 and 64 and have a medical condition that affects your eyes and requires monitoring, OHIP will cover one major eye exam and any follow-up appointments. Some examples of covered conditions include diabetes mellitus, cataracts, glaucoma, and corneal disease. Additionally, eye exams are eligible for coverage if your doctor prescribes them.