Time spent outdoors linked to better eyesight

[treesparrow]

This probably also applies to most forum members spending a long time looking at a computer screen :)

Time spent outdoors linked to better eyesight
Every hour spent outdoors each week can reduce a child's chance of becoming short-sighted by two per cent, a study by Cambridge University scientists suggests.

http://www.telegraph.co.uk/health/children_shealth/8846020/Time-spent-outdoors-linked-to-better-eyesight.html

 

[hiker]

Yes, spending time outdoors and looking at the distance momentarily minimizes the need for the eye to accommodate.

Doing close work like looking at the computer monitor requires the accommodation muscle to contract and increase the refraction of the lens of the eye. Prolonged close work can cause the accommodation muscle to become "spasmic", resulting in the lens of the eye to remain in a close focused position. This way the distance vision can become blurry ("pseudomyopia"), and if minus glasses are prescribed, the spasm does not get to relieve and eventually in a growing eye the actual length of the eyeball can elongate, resulting in irreversible anatomical myopia.

Using reading/computer glasses with plus additions this can be avoided/ the developed myopia improved to some degree:

http://cassiopaea.org/forum/index.php/topic,25228.0.html