342 



THE SENSES 

 FIG. 195 



Visual accommodation: m, meridional muscle; c, circular muscle; S.L., suspensory ligament. 

 The position of the lens and iris as shown by the vertical shading is the position when accommo- 

 dated to a near-point. (Landolt.) 



FIG. 196 



Section of the front of the eye: a, cornea; 6, sclera; c, conjunctiva; d, iris; e, ciliary body; 

 /, crystalline lens; g, ciliary processes; i, stratified epithelial covering to the outside of the 

 cornea; j, endothelial lining of the inside of the cornea forming the outer wall of the anterior 

 chamber; k, canal of Schlemm. It will be seen that the sclera projects forward to form the 

 cornea, while the iris comes off from the ciliary body. This in turn is a forward projection of 

 the choroid. The dark line which covers the inner side of the ciliary processes and the iris is 

 the pigment layer of the retina. I, bloodvessel in the conjunctiva; m, suspensory ligament 

 which holds the lens. (Bates.) 



