Myopia, or short-sightedness, is an eye condition where objects can be seen clearly up close, but objects further away appear blurred.
Myopia occurs if the eyeball is too long or the cornea, the clear front cover of the eye, has too much curvature. Most myopic eyes are healthy and are larger than normal - not that you'd see it, we are talking at a microscopic level.
Myopia is very common and is generally first picked up in school-age children who may frown or screw up their eyes in an effort to see. Short-sighted children may also hold reading material quite close or sit very closely to the television.
While myopia is often inherited, it can also occur in individuals with no prior family history of myopia. Myopia is not preventable and does not simply go away. Because the eye continues to grow during childhood and adolescence, myopia typically increases until about 25 years of age when it levels off. Myopia does not cause blindness.
The good news is that eyes with myopia are capable of good vision and require no treatment other than optical correction such as glasses, contact lenses, orthokeratology and in some cases refractive surgery.
Your Visique optometrist will advise you as to which treatment is most suitable for you.
Hyperopia, or long-sightedness, occurs when distant objects can be seen clearly, but those close up do not come into focus properly. In most cases it occurs when the eyeball is smaller than normal. Because of this, the eye cannot focus correctly.
Symptoms people with hyperopia may experience:
Poor vision unless they make an effort to see
Blurred vision when looking up from close work
Headaches and poor concentration
Occasional double vision
In children, progress at school is not as anticipated
Eye conditions caused by poorly focused vision are usually inherited. Hyperopia is a common eye condition in children. Since the size of the eye is the main factor that determines focus, and since the eyes continue growing until about 25 years, long-sighted eyes tend to become less long-sighted as a child grows older. However, all eyes slowly lose their ability to focus with age. Because of this, most people need reading glasses at some stage in their 40s.
Eyes with hyperopia are capable of good vision and require no treatment apart from optical correction or in some cases orthokeratology may be an option.
Your Visique optometrist can help people with hyperopia to see more comfortably and clearly with glasses or contact lenses.
Astigmatism is a very common eye condition that causes blurred vision either close up or at a distance. This is because the cornea, the clear-fronted cover of the eye, is irregularly shaped. We often explain this more easily by just saying the eye isn't round, it's rugby ball shaped.
Whether you are long-sighted (hyperopic) or short-sighted (myopic), you can still have some degree of astigmatism.
Slight astigmatism doesn't usually affect vision or require correcting, however, larger amounts of astigmatism cause distorted or blurred vision, discomfort and headache. Astigmatism causes your eyes to work harder, which can make them tired.
The symptoms can range; some people get headaches, others just plain old blurred vision. Astigmatism doesn't just affect your near or far vision, it can affect both. Astigmatism can also result in tired eyes, especially if you are concentrating on anything for a long period of time. This may be doing things that require looking up close (like working at a computer or studying) or at a distance (such as driving).
Glasses or contact lenses can be used to correct astigmatism. In some cases orthokeratology may be an alternative treatment. Vision will be clearer and more comfortable if astigmatism is corrected - even if a person sees quite well.
Your Visique optometrist can easily identify astigmatism in a routine eye test, and will talk you through how to correct it.
Your Visique optometrist can help people with astigmatism to see more clearly and comfortably and will advise which treatment is most suitable for you.