Color vision tests are done to check the various functions of the eye. Through these tests, the technologist deciphers the ability of your eye to see far and near, find out the defects or gaps in your vision, and check to see if you can decipher the various colors.
These are common tests to check the eyesight of a person, and to check if the person can check far and near distances. In this test, the person is asked to read letters or look at symbols of various sizes. First, each eye is tested individually, and then both are tested together. The test is carried out with or without eye lenses. There are various types of visual acuity tests.
This test is done to find out the refractive error and measure the need of corrective lenses. This test is done after the visual acuity test. Some of the refractive errors that can happen are farsightedness or nearsightedness.
These tests are done to check the gaps in your peripheral vision. Your visual field is the area that you can see when you are looking at a single direction.
These tests check to see if you can differentiate between colors. This test is helpful in checking people who might have color blindness or retinal or optic nerve disease. People with a family history of color blindness should also get this test done. This test is essential for screening people who have applied for jobs that require color perception.
Take along your contact lenses or eye glasses to the optician, if you already wear them. Also take along the eye prescription. If you have problems identifying colors, tell your optician before the test.