An eye test is an examination during which an eye care specialist, such as an optician, optometrist or ophthalmologist, checks how well you can see and whether your eyes are healthy. During the test, various aspects of your eyes and your vision are assessed.
The most well-known parts of an eye test are:
- Eye test: you read letters or symbols at various distances to determine how clearly you can see.
- Refraction test: using a phoropter or trial spectacles, a test is carried out to determine whether you are short-sighted, long-sighted or have astigmatism, and what strength of correction you require.
- Eye pressure check: the pressure inside your eyes is measured, which is important for detecting certain eye conditions.
- Anterior segment examination: using a slit lamp, the specialist examines your cornea, iris, lens and tear film.
- Back of the eye: sometimes the back of the eye, including the retina and the optic nerve, is examined using an ophthalmoscope.
An eye test is usually carried out by an optician or optometrist, and in the case of certain symptoms or conditions, by an ophthalmologist. The test is designed to assess your vision and determine whether you need glasses or contact lenses, or whether further investigation is required.