
If you’ve never worn contact lenses before, it can seem a bit intimidating. After all, you’re inserting something into your eye! Let’s ease your mind about the first step – your contact lens exam. This post will walk you through what’s involved in a contact lens exam and what you can expect every step of the way.
Your eye doctor will first determine your overall eye health and vision. This includes a discussion of your health history and then a series of standard eye tests. These tests will evaluate eye focusing, eye teaming, depth perception, color vision, peripheral vision, and the response of your pupils to light. The doctor will also measure your eye’s fluid pressure to check for glaucoma, evaluate your retina and optic nerve, and test your vision with different lenses to assess whether contact lenses can improve your vision.
If contact lenses are appropriate for you, it’s time to talk about your contact lens preferences. For example, do you want to enhance or change your eye color? Would you prefer daily disposable lenses or overnight contacts? Ask about the benefits or drawbacks of each, so that you make the best decision. If you’re over 40, your doctor will likely discuss age-related vision changes and how contact lenses can address these issues.
Contact lenses require precise measurements of your eyes to fit properly. Using an instrument called a keratometer, your doctor will measure the curvature of your eye's cornea, the clear front surface of your eye. Next, the size of your eyes pupil is measured using a card or ruler showing different pupil sizes which is held next to your eye to determine the best match.
If you have dry eyes, your eye doctor will perform a tear film evaluation to measure the amount of tear film on the surface of your eye. If your tear film is insufficient or you have chronic dry eyes, contact lenses may not be a good option for you. However, some newer contact lenses deliver moisture to the surface of the eye, making them a better choice for individuals with dry eye issues.
The final step is to fit you with a trial pair of contact lenses. Once inserted, your eye doctor will examine the lenses in your eyes to ensure a good fit. He/she will check the alignment and movement of the lenses on the surface of your eye and if the fit looks good, the last step is to ensure the prescription is correct with a few more tests.
Your contact lens exam is over, but you’ll need to come back. Your doctor will usually have you wear the trial lenses for a week. After that, you’ll have a short follow-up exam to confirm that the lenses are working well for you and you can then order a supply of contact lenses. If this is your first contact lens exam, don’t worry. Choose a qualified optometrist and they’ll answer all your questions as you go. Just be sure to let them know you’re interested in contact lenses so that they know to allow for extra time in your appointment for the consultation and any specialized tests.
Proper technique starts before you ever touch a lens. Always wash your hands thoroughly with a fragrance-, lotion-, and oil-free soap, then dry them with a lint-free towel to keep stray fibers away from your eyes. Before placing a lens, inspect it to make sure it is clean, undamaged, and shaped like a bowl (not inside out). When inserting, use your middle fingers to gently hold both eyelids open, look straight ahead, and place the lens on the center of your cornea. Once it is on, look up, down, left, and right to help it settle into place. Starting with the same eye every time helps you build a consistent routine and avoid mix-ups.
Removal is just as straightforward when done carefully. With clean, dry hands, hold your upper lid steady and pull your lower lid down with your middle finger. Bring your index finger to the lower edge of the lens, slide it gently down to the white of your eye, and then pinch it out with your thumb and index finger. After removal, always store your lenses in fresh solution (never reuse old solution), wash your case with hot water daily, and let it air dry. And if you ever experience redness, discomfort, or any change in vision while wearing your lenses, take them out right away and give us a call.