Guide To The Different Eye Tests

Retinoscopy

A retinoscopy is used to get an exact measurement of a refractive error in an individual's eyes. The doctor will use a retinoscope, a tool that shines light into the eye. They then observe the way the light reflects off the patient's retina. As the practitioner moves the light, they observe the way the reflective angle changes. Some doctors will observe the movement of the light relative to the patient's reflexes. Others will put a lens over the patient's eye as they try to neutralize the reflexes. Manual placement of lenses includes trial lenses and a trial frame. A retinoscopy can help a doctor prescribe glasses or contact lenses for patients who can't undergo an average refraction test. For example, patients with serious communication problems or intellectual disabilities may struggle to communicate about which image in a standard refractive test is clearer. In addition, this test can detect hyperopia and evaluate the eye's accommodative ability.

Learn about eye tests for color next.