The iris pigmentary epithelium has identical structure as the retinal epithelium has. The peripheral iridectomy makes it possible to obtain sufficient amount of tissue to be ušed for the multiplication of the pigmentary epithelium cells in tissue culture, or, for direct implantation into the subretinal space. The technique of the peripheral iridectomy is regardful enough; in none of the specimens mechanically damaged cells were found.

        Key words: iris pigmentary epithelium, retinal pigmentary epithelium, electron microscopy