If you’ve had a vision screening recently, you might say, “My vision is fine! I don’t need a comprehensive eye exam.”
But a vision screening provides a limited perspective on the overall health of your eyes. You’ll have useful information, but it’s not the whole picture.
Vision screenings only test your ability to see clearly in the distance. This is called visual acuity and is just one factor in your overall vision. Others include color vision, peripheral vision, and depth perception. The screening also doesn’t evaluate how well the eyes focus up close or work together. Most importantly, it doesn’t give any information about the health of the eyes. Even if your physician conducts the screening, he/she is a generalist and only has access to a certain amount of eye health training. Most individuals don’t have the tools or knowledge to give you a complete assessment of your vision or eye health.
Comprehensive eye exams evaluate all aspects of your vision and eye health.
The comprehensive eye exam looks at your eye externally and internally for any signs of eye disease, then tests your vision in a variety of ways.
External Exam – This is an evaluation of the whites of your eyes, the iris, pupil, eyelids, and eyelashes.
Internal Exam – This is an evaluation of the retina and optic nerve while your eyes are dilated.
Visual Function and Eye Health – This includes testing depth perception, color vision, peripheral vision, and the response of the pupils to light, as well as an evaluation of eye focusing, eye teaming, and eye movement abilities.
Glaucoma Testing – This is a test of fluid pressure within your eyes to check for the possibility of glaucoma.
Visual Acuity – Your doctor will test your vision with different lenses to determine if glasses or contact lenses can improve your vision.
Comprehensive eye exams look at your total health history.
Even though you visit a separate office for your eye health, that doesn’t mean your eyes shouldn’t be treated holistically. Your eye doctor will discuss your overall health and that of your immediate family, any medications you’re taking, and whether you have high blood pressure or diabetes. They’ll also want to know if you smoke and how much sun exposure you get. All these factors help the eye doctor properly assess your eye health.
The American Optometric Association recommends an eye exam at least every two years if you aren’t having any problems and you’re aged 18-60. After the age of 61, or if you have risk factors, you should schedule a comprehensive exam annually or as recommended by your eye doctor.
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