Phoropter,abstract coloured image. This device,also known as an optical refractor,is an instrument used by eye doctors to determine the prescription for a patient's glasses to correct their vision | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Berman, Larry |
Bildgröße: | 3323 px × 2678 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |