Information about eye health, what you need to know about current treatment methods. (Page 4)
Contact lenses are lenses placed on the surface of the cornea, covering the pupil and the iris completely and offering more comfortable wear than glasses. They are used to correct refractive errors and, cosmetically, to change eye colour.
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Hyperopia is one of the most common questions in eye health. It is a refractive error that mainly blurs near vision, because light is focused behind the retina instead of on it; in mild hyperopia distance vision usually stays clear.
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A stye generally appears from frequent hand contact with the eye, and its main cause is poor hygiene. Touching the eye constantly with dirty hands allows germs to settle there and inflammation to form.
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Vascular occlusion in the eye is a blockage of the blood vessels in the retinal layer at the back of the eye, the layer that allows us to see. Blockages prevent blood from reaching the retina properly and can lead to vision problems.
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Hyperopia and astigmatism are among the most common refractive errors, affecting millions of people, and they are often seen together. Where both are present at once, the condition is called hyperopic astigmatism.
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The macula can deform with age, which is called macular degeneration. The macular test, also known as the Amsler grid test, is a method used to assess this condition.
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Night blindness is difficulty seeing in dim light. One of its main causes is retinitis pigmentosa, a genetic condition that affects the retinal cells that provide focus and vision at night in its early period.
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Pachymetry measures the thickness of the cornea to an accuracy of microns. Simple though it looks, it offers important information for eye health, shaping treatment decisions and safeguarding surgery.
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The symptoms of eyelid inflammation, known as blepharitis, are generally similar in most people, and they can grow more severe depending on the state of the infection.
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The macula is the main part at the centre of the eye responsible for sight. Macular degeneration arises from the structural deterioration occurring in this area, and it can lead to sight loss with age.
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There is no recommended age range for wearing contact lenses. What matters is not age so much as the responsibility the wearer can take on, and an assessment by a specialist is needed before lenses are worn.
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Cataract is an eye condition appearing with advancing age in particular. Having cataract surgery in summer causes no problem in terms of health, although the doctor's advice should always be followed.
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