Everyone needs a Refraction test
Reqular eye examinations are crucial for maintaining the health of your visoin. they are a routine part of an eye doctor visit and require no preparation on your part.
Healthy adults should have a refraction test every two years, while children need them every one or two years beginning at age 3.
What is refraction test?
A Referaction test is usually given as part of a routine eye examination. it may also be called a vision test.This test tells your eye doctor exactly what prescription you need in your Normally, a value of 20/20 is considered to be optimum, or perfect vision. Individuals who have 20/20 vision are able to read letters that are 3/8 of an inch tall from 20 feet away. If you don't have 20/20 vision, you have what is called a refractive error. A refractive error that means that the light is not bending properly when passes through the lens of your eye. The refraction test will tell your doctor what prescription lens you should use in order to have 20/20 vision.
Why is this test used?
This test tells your doctor if you need prescription lenses, as well as what prescription lens you need to see properly. The results of the test are used to diagnose the following conditions: astigmatism, a refractive problem with the eye related to the shape of the lens, which causes blurry vision hyperopia, which is also known as farsightidness myopia, which is also known as nearsightedness presbyopia, a condition related to aging that causes lens of then eye to have trouble focusing
Who should be tested?
Healthy adults under age 60 who aren't experiencing vision problems should have a refraction test every two years. Children should have a refraction test every one to two years, starting at no later than 3 years of age. If you currently wear prescription glasses or contact lenses, you should have a refraction test every one to two years. This will allow your doctor to figure out what prescription is necessary as your eyes change. If you're having problems with your vision between exams, you should see your eye doctor for another refraction test.
If you have diabetes you should have an eye examination every year. A number of eye conditions are associated with diabetes, such as diabetic retinopathy and glaucoma. According to the American Diabetes Association, people with diabetes are at a greater risk for blindness than other Americans.
If you are over 60 or have a family history of glaucoma you should also have a refraction test every year. Glaucoma occurs when pressure builds up in the eye, damaging the retina and the optic nerve. Regular exams will help your eye doctor screen for glaucoma and other eye conditions associated with aging and, if possible, treat them early.