Aside from sleeping, you use your eyesight for almost every activity, from reading to driving to surfing the web. And, because your vision is so necessary in your daily life, you must protect your eye health. You can reach this goal by scheduling frequent eye exams at your optometrist’s office.
During an eye exam, you can expect to have numerous Basic Tests Performed. Discover the most frequent eye tests so you know what to anticipate at your next optometrist appointment.
- TEST OF VISUAL ACUITY
This is most likely what comes to mind when you imagine yourself planning to visit the eye doctor. You’ll read letters from a sign that’s a certain distance away from you using one eye at a time. Your responses are used by your optometrist to establish how each eye’s vision level compares to conventional 20/20 vision.
2. RETINOSCOPY
Do you imagine yourself peering into a thick device with multiple lenses and controls when you think of an eye exam? A phoropter is the device used by your optometrist to perform a retinoscopy.
A retinoscopy enables your optometrist to estimate your ideal lens prescription. The eye doctor rotates different lenses in front of your eyes as you look through the phoropter. You fix your attention on a prominent object in front of you (usually the “E” on the top row of an eye chart). The optometrist puts a light into your eyes and observes how the light interacts with your eyes through various lenses.
3. TEST FOR REFRACTION
A refraction test, in conjunction with a retinoscopy, establishes your eyeglass prescription. During this vision exam, you also look through the phoropter and at the eye chart on the other wall.
Throughout the test, you will notice a number of lens pairs. The optometrist constantly asks which of two lens alternatives allows you to see better. The optometrist assesses whether your eyes are nearsighted, farsighted, or astigmatic based on your responses. This test may also demonstrate that you do not require prescription vision correction.
4. TEST FOR KERATOMETRY
This test determines the shape and curve of the cornea, which is located on the outside of the eye. The curvature of your cornea influences how your light perceives and reflects light. Astigmatism is a disorder that occurs when the corneas of some persons have steep or extended curves. Keratometry tests are used by optometrists to diagnose astigmatism.
You look into a special machine during a keratometry test. Your eye doctor will adjust the equipment so that it is aligned with your eye. The optometrist then reads the machine’s measurements, which indicate the shape of your cornea.
5. TEST OF PERIPHERAL VISUAL FIELD
While most individuals focus on what their eyes are looking at, we can also perceive items on the sides of our field of view. This is referred to as our peripheral vision. Visual field exams are used to assess our peripheral vision.
There are various types of peripheral visual field tests. Among them are the following:
Perimetry that is automated. You stare into a specialized machine and concentrate on a point in the center. When you see a light flash in your peripheral vision, you hit a button.
Tangent screen test You concentrate on a target in the centre of a screen. Your eye doctor brings things into and out of your peripheral vision, and you indicate when you first notice them and when they disappear.
Visual field examination in confrontation. Your ophthalmologist sits across from you and moves his or her hand into and out of your peripheral vision. When you view the hand, you tell your optometrist how many fingers it has.
Each test allows an optometrist to estimate the extent of your visual field and discover deficiencies in your peripheral vision.
6. MEASUREMENT OF INTRAOCULAR PRESSURE
The force or pressure created by the fluid in your eyes is measured by an intraocular pressure test. A high level of eye pressure can be an indication of glaucoma.
A brief blast of air is directed at your open eye by the gadget that checks for glaucoma. Because the puff of air caught you off guard, your eyes closed. The machine then calculates your eye pressure based on your reaction and the resistance of your eye to the pressure from the air puff.
For further information please see our website at www.thevisionzoneclinic.com
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