Myopia

Myopia means short-sightedness. Objects close up may be in focus, but you need glasses or contact lenses to see clearly at longer distances.

 

Myopic eyes are often larger than average and there is too much focusing power from the lens and cornea at the front of the eye. This means light from a distance gets focused in front of the retina, giving blurred vision. 

 

Myopia can be corrected with glasses or contact lenses to help re-focus the light appropriately. Alternatively, the focusing of the eye can be changed surgically by:

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Hyperopia

Hyperopia means long-sightedness. Objects in the distance may be in focus, but you need glasses or contact lenses to see clearly at closer distances. With some higher degrees of hyperopia, all distances are out of focus.

 

Hyperopic eyes are often smaller than average and there is too little focusing power from the lens and cornea at the front of the eye. This means light gets focused behind the retina, giving blurred vision.

 

Through a process called accommodation, whereby the eye increases its natural focusing power, many hyperopic patients can achieve good vision for long and intermediate distances. The ability to accommodate is gradually lost with age however (see: Presbyopia).

Hyperopia can be corrected with glasses or contact lenses to help re-focus the light appropriately. Alternatively, the focusing of the eye can be changed surgically by:

 

SMILE, the latest version of laser eye surgery, is not yet available to treat hyperopia although this is in development.

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