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LABORATORY METHODS OF 



THE EYE. 



The eye is the organ of vision and consists of a hol- 

 low globe divided into two chambers : the anterior and 

 posterior, separated by the iris and lens. In front of 

 the anterior chamber is the cornea and behind is the 

 lens. The posterior chamber is composed of the 

 sclera, choroid and retina. The sclera is the white of 

 the eye. The choroid is the coat between the retina 

 and the sclera. The retina is the vision-producing 

 membrane. The cornea is composed of five layers. 



SECTION OF RETINA. 

 1, pigment layer; 2, layer of rods and cones. 



