When you visit an eye doctor for an examination, do you wonder what they are doing with the different types of tests? A good eye doctor is happy to answer your questions during the appointment, helping you understand what is happening. Here is an overview of some of the most common types of tests that are used during a routine eye exam:
The most well-known part of an eye exam is the test to see if you can read the letters on a chart (known as a Snellen chart). This test determines how clearly you can see things at a distance.
The results of a visual acuity test are formatted as a fraction, such as 20/20 being normal vision or 20/40 (or higher), meaning you need to be a bit closer to see objects clearly. These results help the eye doctor determine if you will benefit from corrective lenses, and also the best prescription strength that you need.
One way to dial in the optimal prescription is by using a refraction test. This method uses a machine that switches out lenses to find the one that gives you the clearest vision. Additionally, the test can determine if you are nearsighted or farsighted, and whether or not you have astigmatism. All of this information is helpful to ensure that you have the optimal lenses for your glasses and/or contact lenses.
The eye doctor may place drops in your eyes to make the pupils dilate, which means that the pupils will become wider. This test makes it possible for the doctor to see into the inside of your eye and get a look at the optic nerve and retina. It’s important for detecting conditions that could impact your vision, such as diabetic retinopathy, glaucoma, and macular degeneration.
Keep in mind that you might experience temporary light sensitivity after the appointment, so you will need to wear special sunglasses when going outside.
This test is used to check the intraocular pressure (IOP) within your eye. It is painless: a little puff of air that touches the eye gently.
If the pressure levels are high, then it could be a sign of glaucoma. Early detection is critical so that the condition can be treated to avoid having the pressure damage the optic nerve.
Is it time for you to visit an eye doctor for a comprehensive examination? Contact our team at Temecula Creek Optometry to book your appointment: (951) 302 -1331.