An eye test is not just good for checking whether your glasses are up to date. It's also a vital check on the health of your eyes.
An eye test can pick up eye diseases, such as glaucoma and cataracts, as well as general health problems, including diabetes and high blood pressure. It is recommended that children and seniors have their eyes tested once a year and adults every two years. Routine eye exams are the best way to prevent eye disease and preserve your vision health.
Age Group
Primary eye care provider (Ontario, Canada). Trained to assess and diagnose all eye-related diseases, and refer to specialists (ophthalmologist, neuro-ophthalmologist, Oculoplastics, Vision Therapy, retinal surgeons).
In Ontario Canada, this can refer to an optometrist (primary eye care provider) or an ophthalmologist (surgeon)
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It is caused by the elongation of the eye. This condition results in light being focused in front of the retina. Myopia causes your vision to be out of focus when looking at things far away, but still clear up close.
This is the opposite of nearsightedness. It is a shortening of the eye, causing light to be focused behind the retina. Farsighted people typically can focus through the prescription. However, it can cause eye strain, tiredness, and even blurry vision. It can affect your distance vision and your near vision but may affect your near vision more.
It is a refractive error caused by an irregularly shaped eye. This can cause glare or shadowing of images. This is easily correctable through glasses, contact lenses, or refractive surgery.
This is an age-related deterioration of the natural lens inside the eye, leading to a more rigid lens. The onset of this issue is usually around forty years of age and leads to a blurred near vision. You can correct this with reading or progressive glasses, but multifocal contact lenses and surgery are becoming more popular options.
This refers to the clouding of the natural lens inside the eye. It is mostly age-related as it typically occurs for individuals from sixty to eighty years of age. Besides age, cataracts can also be caused by certain medications, trauma, or can even arise at birth. Treatment for cataracts at this time involves cataract surgery, although there are promising clinical trials of a medicated eyedrop that can reverse the degenerative effects of cataracts.
This is the tissue in the back part of the eye that detects light. It is similar to the “film” on a vintage camera. It processes light from the outside world and sends that information to the brain (or computer chip inside the camera). It is one of the most important structures inside the eye.
This is the clear tissue that acts as a protective barrier over the eye. It is the structure that most contact lenses sit upon. The cornea is one of the most innervated parts of the body, yet it is the only part that does not have any blood vessels.
Bi (means two) focal (focus points) glasses allow for two different prescriptions on one lens. This allows the wearer to see at two different distances (i.e., far and near). Previously, bifocal lenses would have a window on the lens for near prescriptions. But, these days, most bifocal lenses are also known as progressive lenses. Progressive lenses do not have any lines or windows, as the prescription “progresses” from distance to near as you move down the lens.
An optician is a licensed, regulated salesperson who dispenses eyeglasses or contact lenses. They have to complete a two to four-year college degree to practice this profession.
Ophthalmologists are the eye specialists going through undergraduate, medical school, residency before further specializing in ophthalmology. Ophthalmologists can perform ocular surgery, laser treatment, and injections.
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