582 BULBUS OCULI 



exceedingly delicate deep lamina, which lines the fossa 

 hyaloidea, and a more superficial stronger part, which becomes 

 attached to the capsule of the crystalline lens. 



The zonula ciliaris lies subjacent to the ciliary processes, 

 and is radially plaited or wrinkled in correspondence with 

 these. Thus the elevations or wrinkles of the zonula extend 

 into the intervals between the ciliary processes, whilst the 

 ciliary processes in their turn lie in the depressions between 

 the wrinkles of the zonula. When the eye is fresh, these 

 opposing parts are closely adherent. 



The zonula ciliaris is strengthened by radially directed 

 elastic fibres, and after the delicate membrane which lines 



Retina 



,Sclera 



-Perichorioidal space 



Ciliary muscle (radiating fibres) 



-Ciliary muscle (circular fibres) 

 -Sinus venosus sclerae 



Spatia anguli iridis 

 -Ciliary process 

 Spatia zonularia 

 Suspensory ligament 



Iris 



Cornea 



FIG. 256. Diagrammatic representation of the Ciliary Region, 

 as seen iri vertical section. 



the fossa hya'loidea is given off from its deep surface, it 

 extends inwards as a distinct layer, and is attached to the 

 anterior surface of the capsule of the lens a short distance 

 beyond the margin of that body. In this manner the 

 suspensory ligament of the lens is formed. But this is not 

 the only attachment of the suspensory ligament. Some 

 scattered fibres are attached to the circumference or equator 

 of the lens (equatorial fibres), whilst others are fixed to its 

 posterior surface close to its margin (post-equatorial fibres). 



In this way the crystalline lens is firmly held in its place 

 in the fossa hyaloidea. Further, the degree of tension of its 

 suspensory ligament is influenced by the radiating fibres of 



