Fig. 12. Ultrahistochemistry of the ciliary epithelium stained for the enzyme Na-K-ATPase. Note basolateral infoldings of the nonpigmented ciliary epithelium show intense reaction product for the enzyme (arrows). (From Flügel C, Lütjen-Drecoll E: Presence and distribution of Na+/K+-ATPase in the ciliary epithelium of the rabbit. Histochemistry 88:613, 1988; Tamm ER, Lütjen-Drecoll E: Ciliary body. Microsc Res Tec 33:390, 1996. Reprinted by permission of Wiley-Liss, a subsidiary of John Wiley and Sons, Inc.)