One of the best ways to preserve your vision so that you can keep seeing the world clearly is by visiting an optometrist for an eye examination and primary eye care. The examination includes different tests that can measure the vision capabilities of each eye and diagnose certain conditions that affect optical health. Most people are advised to schedule eye exams annually. If any serious eye conditions are discovered during the examination, the optometrist may refer you to an ophthalmologist for further treatment. Here are a few tests that may be included in your eye examination when you visit an optometrist.
Visual Acuity Test
This classic vision test involves reading lines of letters or numbers while standing or sitting at a distance from the chart that's on display. Some lines of letters or letters appear larger while others are smaller. The visual acuity test can gauge how well you can see objects that are up close or farther away. The optometrist will likely ask you to tell them the smallest row of letters that you can read as a reference point.
A phoropter is a testing device that consists of different lenses that have various strengths. The optometrist will put the phoropter up to your face so that you can see a row of numbers or letters in each lens. The optometrist will then have you look through different lenses and ask you to specify which lenses show the clearest imagery. The results from this test can be used to prescribe any corrective lenses that you might need.
Swinging Flashlight Test
This test can determine how well your pupils are working in each eye. A bright light will be shone in each eye at various intervals to see how each pupil responds to the light. If your pupils aren't responding the way that they should, there could be a neurological problem that needs further evaluation.
Tonometry Eye Pressure Test
There are different ways to perform this test, but one of the most common ways is by emitting a puff of air into each eye with a special machine. The air puff flattens the cornea to measure eye pressure. If the eye pressure is too high in one or both eyes, you may have glaucoma or another serious eye condition that can impact your vision negatively if it is left untreated.
Fitting for Eyeglasses or Contact Lenses
If corrective lenses need to be prescribed to correct any vision problems that you may have, the optometrist can fit you for eyeglasses or contact lenses as part of your eye exam. Your eyes will need to be measured if you choose to go with contact lenses so that each lens will fit correctly onto the eye. Eyeglass fittings are done by determining the shape of your face and the spacing between your eyes as well as how the eyeglass frames fit on the nose.
An eye examination should be part of your annual health checkup routine if you want to get the most out of your vision. An optometrist who has all the right equipment and uses the most trusted testing methods can offer you a comprehensive eye exam.