normal vision click to hear : normal vision

Normalsichtigkeit click to hear : Normalsichtigkeit

normal vision image

retina click to hear : retina

Netzhaut click to hear : Netzhaut

lens click to hear : lens

Linse click to hear : Linse

light ray click to hear : light ray

Lichtstrahl click to hear : Lichtstrahl

cornea click to hear : cornea

Hornhaut click to hear : Hornhaut

focus click to hear : focus

Brennpunkt click to hear : Brennpunkt

object click to hear : object

Objekt click to hear : Objekt