7/21/2019 Protect Eyes

http://slidepdf.com/reader/full/protect-eyes 1/2

 Your eye lenses are controlled

by muscles,ciliary body

 The ciliary body is the structure in the eye that releases a transparent liquid

(called the aqueous humor) within the eye. The ciliary body also contains the

ciliary muscle, which changes the shape of the lens when your eyes focus on

something. This process is called accommodation.

aqueous humor The aqueous humour is a transparent, gelatinous uid

It is secreted from the ciliary epithelium, a structure supporting the lens.

It is located in the anterior and posterior chambers of the eye, the space

between the lens and the cornea.

eye tears are made of precorneal lm

as simple as it sounds

 The ision industry, not surprisingly, ma!es money o" consumer ignorance

#atch ideos of some of the best animations and cartoon series the internet has

to o"er.

$earsightedness, or myopia,as it is medically termed, is a ision condition in which close ob%ects are seen

clearly, but ob%ects farther away appear blurred.

Hyperopia, or farsightedness&eople with hyperopia can see distant ob%ects ery well, but hae di'culty

focusing on ob%ects that are up close.

7/21/2019 Protect Eyes

http://slidepdf.com/reader/full/protect-eyes 2/2

Presbyopiacaused by loss of elasticity of the lens of the eye,

Presbyopia usually occurs beginning at around age , when people e*perienceblurred near ision when reading, sewing or wor!ing at the computer

 Astigmatism is an imperfection in the curature of your cornea + the clear, round dome

coering the eyes iris and pupil

#hen the cornea has an irregular shape, it is called corneal astigmatism.

-or people with astigmatism, all ob%ects both near and far are distorted.

Its almost li!e loo!ing into a fun house mirror in which you appear too tall, too

wide or too thin.

computer ision syndrome

symptoms of computer vision syndrome such as dry eyes, tired eyes, eye strain,

headaches, nec! pain.

Computer vision syndrome (/0) is a temporary condition resulting from

focusing the eyes on a computer display for protracted, uninterrupted periods of 

time.