Historical indentation tonometer. This device was used by William MacLean in around 1918. It is used to measure the intra ocular pressure - the pressure inside a person's eyeball. This is used to help in the diagnosis and evaluation of a number of eye problems including glaucoma. Photographed at the Royal College of Ophthalmologists,London,UK | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Thomas, Mark |
Bildgröße: | 3425 px × 5138 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |