Your North Edmonton, Alberta, eye doctor explains
Nearsightedness and farsightedness, officially termed myopia and hyperopia – respectively, are both refractive vision conditions. That means they are both caused by refractive errors, which are ocular disorders that affect the eye’s ability to properly focus light on the retina. The retina is the membrane that forms the back layer of the eyeball.
Nearsightedness occurs when the light that enters the eye falls short of the retina. Typically, this happens because the eyeball is elongated. As a result, objects in the distance look blurry to people with myopia. However, vision of near objects remains unaffected. Nearsightedness generally develops during childhood, deteriorates during the teenage years, and stabilizes once the person reaches young adulthood.
Farsightedness is basically the opposite of nearsightedness. Usually, it results from having an eyeball that is too short. As a result, light is focused behind the retina instead of directly on it. For people with mild to moderate farsightedness, close objects appear blurred, while objects in the distance are still sharp. However, high amounts of farsightedness may interfere with clear vision at all distances. Children are typically born farsighted, but as they grow and develop, their eyeballs lengthen and the hyperopia decreases.
Diagnosis of myopia and hyperopia – visit an eye doctor near you
While nearsightedness and farsightedness can cause symptoms, such as headaches, squinting, eye strain, and fatigue, these symptoms alone are not sufficient for making a firm diagnosis.
Both of these vision conditions can be detected during an eye exam performed by a qualified eye doctor. As a part of every eye exam, visual acuity will be tested. You will need to read a basic Snellen eye chart, and your eye doctor will test refraction in order to determine your precise vision prescription for glasses or contact lenses.
Treatment for nearsightedness and farsightedness
Corrective eyeglasses and contact lenses are both effective ways to treat nearsightedness and farsightedness. The prescription lenses work by altering the path of light as it bends into the eyes.
When children experience progressive myopia, a variety of methods for myopia control may be suitable. Myopia control treatment can eliminate the need to buy new glasses or contacts yearly, and it can help reduce children’s risk for eye disease in the future. To find out about your child’s candidacy for myopia control, consult a qualified eye doctor and book an eye exam near you.
It is common for myopia and hyperopia to stabilize once people reach their twenties. Once that occurs, refractive laser surgeries – such as LASIK and PRK – become options for treatment. These procedures can permanently resolve nearsightedness and farsightedness by reshaping the cornea to focus light properly on the retina.
Can vision therapy help with nearsightedness and farsightedness?
Clear and fully functional vision depends on more than just sharp visual acuity. Eyesight, the brain, and visual pathways all need to work in sync with each other. When this doesn’t happen, a person can find it difficult to see – even with 20/20 vision. That’s where the role of vision therapy enters the picture.
Vision therapy helps people with particular eye conditions develop the visual skills needed for clear sight, such as:
- Strabismus (crossed eyes)
- Amblyopia (lazy eye)
- Computer vision
- Traumatic brain injury (TBI)
- Learning related visual problems (poor eye teaming and focusing)
- Sports vision improvement
Optic devices and custom-designed exercises are used to strengthen the eye-brain connection, so eye mobility is enhanced. The person learns how to efficiently process visual cues that the eyes send to the brain. Therefore, vision therapy will not help to treat a refractive vision condition, such as nearsightedness and farsightedness.
At Village Eye Centre, we put your family's needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 587-410-5920 or book an appointment online to see one of our North Edmonton eye doctors.
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