Ophthalmic technicians perform a variety of tests to check eye health and vision condition.

Ophthalmic technicians conduct tests to measure the fluid pressure inside of patients' eyes. They use instruments to diagnose optical conditions such as astigmatism. They use special tests to check for:

• Nearsightedness
• Farsightedness
• Glaucoma

Ophthalmic technicians keep records of patient's medical history. Sometimes they assist physicians in performing ophthalmic procedures, including surgery. Between appointments, technicians clean equipment and prepare the space for the next patient. They help administer topical and oral medications and help patients use contact lenses. 

They perform routine tests to check patients':

• Field of vision
• Depth of vision
• Eye muscle function