Text-book of ophthalmology . s effect the changes in the shape of the lens, upon which accom-modation depends (see § 758). According to Thomson, they also act as a pump,withdrawing fluid from the aqueous chamber and discharging it into the spacesof the ligamentum pectinatum and Schlemms canal. On this hypothesis theirabsence would lead to insufficient outflow and to increase of intra-ocular pressure(see §§ 452, 453).—D.] 307. Ciliary Processes.—The ciliary processes (P, Fig. 142) are placedupon the ciliary muscle. They consist of a connective-tissue stroma, which,along with branched pigment ce
Text-book of ophthalmology . s effect the changes in the shape of the lens, upon which accom-modation depends (see § 758). According to Thomson, they also act as a pump,withdrawing fluid from the aqueous chamber and discharging it into the spacesof the ligamentum pectinatum and Schlemms canal. On this hypothesis theirabsence would lead to insufficient outflow and to increase of intra-ocular pressure(see §§ 452, 453).—D.] 307. Ciliary Processes.—The ciliary processes (P, Fig. 142) are placedupon the ciliary muscle. They consist of a connective-tissue stroma, which,along with branched pigment cells, contains an extraordinary number ofblood-vessels, so that the ciliary processes must be regarded as the most vas-cular portion of the entire eyeball. The inner surface of the ciliary body iscovered by three layers of tissue. The first of these is a homogeneous mem-brane, the vitreous lamina of the ciliary body (Fig. 145,I). Succeeding thisis a layer of pigmented cells (P, Figs. 145 and 146); and, lastly, a single.
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