THE EYES 



239 



not used in looking at a distance, and they must be em- 

 ployed in close work. Therefore if one's eyes feel weak 

 and painful, the very best way to improve and cure 

 them is to do the least possible amount of close work, 

 and frequently use the eyes in distant vision. If, while 

 studying, we look away into the distance during 

 the necessary periods of thinking, the eyes will be 



rested and the think- , . 



ing power improved 

 at the same time. 



The following points 

 should also be care- 

 fully observed by all 

 who would protect 

 and preserve their 

 eyes. See that the 

 light for reading, 

 sewing, and similar 

 occupations is always 

 sufficient, and that it 

 falls properly upon 

 the work. Do not 

 use the eyes for close 



work while facing either the sun or artificial light. 

 The light should come from behind and above, and, 

 when one is writing, preferably from the left side 

 for those who are right-handed, as a shadow is cast 

 by any object coming between our source of light and 

 the surface at which we are looking. We should not 



Correct Position for Reading. 



