Short sightedness

Myopia (or short sightedness) is a common eye condition that causes the patient to see distant objects as blurred, despite seeing their close surroundings very clearly. Glasses, contact lenses and laser eye surgery are all recognised ways of correcting myopia.

Short sightedness

Myopia (or short sightedness) is a common eye condition that causes the patient to see distant objects as blurred, despite seeing their close surroundings very clearly. Glasses, contact lenses and laser eye surgery are all recognised ways of correcting myopia.

myopia explanation

What is myopia?

Myopia is also known as near-sightedness or short-sightedness, and is one of the most common eye conditions affecting all sections of the population.

It occurs when a patient’s eye is either too long or the cornea is too curved, or a combination of the two. In a myopic patient, light is focused in front of the retina at the back of the eye, instead of to a sharp focus onto the retina. This means that when they look at distant objects, a blurred image is sent to the brain.

Myopia can be mild, moderate or severe (high myopia).

What are the symptoms?

Myopia often starts to develop in childhood or adolescence, although it can start at any age.

If you have trouble seeing objects at a distance, you are probably short-sighted. People with myopia suffer from blurred distance vision that is worse at night or in dusk-like conditions, although their near vision will be very good.

Patients with myopia symptoms may try to “screw up” their eyes in the early stages to try and compensate for their blurred vision, but without optical correction, there is no way of compensating or overcoming this visual disorder.

People with uncorrected short sight may also suffer from headaches.

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If you have trouble seeing objects at distance and would like to discuss myopia treatment options, make an enquiry or call on 0203 369 2020

What are the causes?  

Age is one of the most common factors in myopia development, although there are several other influencing factors.

Age: the degree of myopia increases with increases in eye length, so this condition has a trend to worsen during puberty when growth is at a maximum

Regular close-up reading (on a computer or paper)

Diabetes

Some types of cataract

Familial factors

What are the treatment options?

Non-surgical treatment options

Glasses and contact lenses in the form of negative lenses are all recognised ways of correcting myopia.

Another myopia treatment, orthokeratology (ortho K), involves the wearing of rigid contact lenses overnight which alter (flatten) the shape of the cornea to reduce the overall power of the eye and decrease the degree of myopia. The change in shape induced by these contact lenses lasts around 1 to 2 days, and for a longer effect, lenses need to be worn more regularly. It may be suitable for mild to moderate degrees of myopia. It works by starving your cornea of oxygen which stresses the tissue and causes it to swell and change shape. The long term effects of this treatment are not known.

Surgical treatment options

The type of surgical correction that is most suited to you will depend on a number of different factors that will be considered by your eye surgeon, including your age, the degree of short sight you have, the thickness of your corneas and any other co-existing ocular conditions that you may have.

Laser eye surgery

Involves reshaping the cornea using lasers, correcting the way the eye focuses light. A popular procedure that will usually correct an individual’s vision permanently.

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Lens implant surgery

Involves inserting an implantable contact lens into the eye behind the cornea to help correct vision. This option is best suited to people who are unsuitable for laser eye surgery or those with dry eye or very high levels of short sight.

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Clear Lens Extraction

The same as cataract surgery but involves the removal of a clear crystalline lens (with no cataract) and replacement with a multifocal lens. This is an option that may be better suited to people over the age of 45.

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If you have trouble seeing objects at distance and would like to discuss myopia treatment options, make an enquiry or call on 0203 369 2020

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