Ojo bastones humano cuerpo conos electron microscopic ciliary scanning retina pupila mirada tension cristalino acuoso elmundo procesos ciliares Iris diaphragm microscope function Iris of the human eye as seen through an electronic microscope
Iris Diagram Microscope
The microscope’s iris diaphragm: what it does and how it works Microscope diaphragm iris function condenser quora