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You asked what causes us to become short-sighted when we use the computer or television for a long period of time. The short answer to this is because of increased time spent focused on a close object, which causes the eye to get "stuck" in the close-up focus position and can no longer focus on distant objects. Therefore it is not just computers or television that causes short-sightedness but any form of activity that involves focusing the eye on a close object, for example, reading in poor lighting.
You may refer to the following titles available at our Public Libraries for a more in-depth understanding of myopia.
Title Clear vision : childhood myopia, a guide for concerned parents : & myopia lasik surgery, your questions answered / Dr Tony Ho.
Author Ho, Tony, 1958-
Publisher Singapore : I Care Publishing, 2001.
Call number: q617.755 HO -[HEA]
Title A patient's guide to myopia and myopia treatment / [chief author, Gerard Chuah ; contributors, Monica Lim ... et al.].
Author Chuah, Gerard, 1964-
Publisher Singapore : Effective Health Corp., 2004.
Call number: 617.755 CHU -[HEA]
Title 18 steps to myopia control / by Tony Ho.
Author Ho, Tony, 1958-
Other Title Eighteen steps to Myopia control
Publisher Singapore : I Care Pub., c1997.
Call number: 646.726 HO
Title The eye book : a complete guide to eye disorders and health / Gary H. Cassel, Michael D. Billig, Harry G. Randall.
Author Cassel, Gary H., 1953-
Publisher Baltimore, MD : Johns Hopkins University Press, 1998.
Call number: 617.7 CAS -[HEA]
You can check availability of the above titles via our online catalogue http://vistaweb.nlb.gov.sg
We hope your query has been answered.
Do contact us again if further assistance is required.
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