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Home » Ophthalmology » Correcting Refractive Eye Problems

Correcting Refractive Eye Problems in Houston, TX

Providing advanced vision correction services in Houston, Missouri City and the surrounding areas of Texas, Eye Excellence offers a variety of services including procedures focused on correcting refractive eye problems. Eye Excellence can correct refraction issues, such as myopia, hyperopia, astigmatism, and presbyopia. Using refraction testing equipment to determine your ideal vision, or if additional procedures are necessary, Eye Excellence can help you fix any vision problems, allowing you to lead a much happier and healthier life.

What Is a Refraction?

A refraction is the most important measurement of your eyes. It determines the proper power lens for obtaining your best possible vision. The results are used for contact lenses and eyeglasses. Also, comparing the new refraction results with your existing prescription can determine if your current glasses are adequate. Overall, refraction helps the doctor give you your ideal vision.

When Should a Refraction Be Performed?

Refraction tests are not necessary at every visit to our office. However, there are several good reasons to obtain a refraction. A refraction is the only way that our doctors can tell what your best vision is or if your current glasses are correct.

  • A refraction is recommended if you’ve had a recent change in vision. It’s quite a relief when something as simple as a change in glasses can relieve visual symptoms.
  • When you purchase new glasses, we recommend a refraction. New glasses are a big investment, so it’s worthwhile to have your latest measurement to eliminate vision problems and get the most out of your new pair of glasses.
  • If it has been more than a year since the last measurement, your eyes have likely changed, so an accurate refraction can bring you and the doctor up to speed on your eye condition.

What Is a Refraction?

Refractions are usually integrated into routine eye examinations. Also known as a vision test, the refraction informs your doctor of the exact prescription required for contact lenses and glasses. 20/20 is considered to be optimum, or perfect, vision. This metric indicates that those with perfect vision can read letters from 20 feet away that are 3/8-inch tall. Those who do not have 20/20 vision may have what is known as a refractive error. This indicates that light is not bending correctly as it passes through the cornea and retina within your eye. The refraction will tell your eye doctor the exact prescription needed to correct your vision so it can be 20/20.

Why Is this Test Used?

Since this test is normally given during a routine eye exam, your doctor will learn more about your need for prescription lenses and what is needed to give you 20/20 vision. Also, the results of the test can help diagnose the following conditions:

  • Astigmatism – the abnormal curvature of the cornea that results in blurry vision.
  • Hyperopia – farsightedness or the difficulty in seeing close objects.
  • Myopia – nearsightedness or the difficulty in seeing far objects.
  • Presbyopia – aging condition that results in difficulty focusing.

Who Should Be Tested?

Healthy adults without vision problems should be tested every three to five years. Children should be tested every one to two years beginning no later than three years of age. If you are wearing contact lenses or prescription glasses, you should have a refraction test once every one to two years. This will allow your doctor to adjust the prescription in case your vision changes. Also, if you are experiencing vision problems between exams, see your doctor for another test, which could help diagnose a larger vision issue.

Those who have diabetes should have an exam every year. If between exams, a change in vision is noticed, it is important to schedule an eye exam immediately. There are numerous conditions associated with diabetes, including diabetic retinopathy and glaucoma. Studies from the American Diabetes Association show that those with diabetes have a greater risk of blindness than those without the diagnosis.

Additionally, those with a family history of glaucoma or who are over 40 years of age should have an annual refraction test. Glaucoma occurs when pressure builds up in the eye, damaging the retina and the optic nerve. Regular eye examinations help your doctor screen for glaucoma, as well as other eye conditions that commonly result from aging. This will allow those conditions to be treated early.

What Happens During a Test?

First, your doctor will determine how the light is bending as it moves through the cornea out the lens of your eye. The results tell your doctor the type of prescription required and could determine that you do not need any type of corrective lenses. Some doctors simply shine a light into your eyes while others utilize a computerized refractor.

If your doctor does not use the machine, they simply shine a light into each eye and look at the amount of light bouncing off your retina. This information contributes to your refractive score. The other option is the computerized test. You simply look through a machine which gathers the amount of light reflected by your retina.

Afterward, your doctor will determine the prescription required to correct your vision. For this part of the test, you will be seated in front of a piece of equipment called a phoropter, which is essentially a large mask with holes for your eyes to look through. About 20 feet in front of you will be a letter chart. Children who are too young to identify letters will be given a chart with small pictures of recognizable objects. The doctor will test each eye individually by asking you to read the smallest row of letters that you can see. The doctor will then adjust the lenses and ask if they become clearer. If you are unsure and need another look, ask to repeat the options. Once the doctor has completed one eye, they will repeat with the other. Finally, the doctor will determine the best combination that most closely gives you 20/20 vision.

How Much Does a Refraction Test Cost in Houston?

  • Even if your insurance plan doesn’t cover vision correction, you can use cash, a credit card, or approved financing for payment.
  • Choose from no-interest plans, extended payment options up to 48 months and no down payment.

Please visit our financing page for more information.

At Eye Excellence, residents of Houston, Missouri City and the surrounding areas of Texas can rest assured that their vision will be handled properly so that they can enjoy a healthier lifestyle free of vision problems. Contact us to schedule an appointment today to determine if you need refractive surgery or to simply have a new eye examination.