Pressure to measure pressure: the McLean Tonometer.
Keeler
Richard
R
Singh
Arun D
AD
Dua
Harminder S
HS
D049672:History, 19th Century; D007429:Intraocular Pressure; D009885:Ophthalmology / Q000266:history*; D014065:Tonometry, Ocular / Q000266:history* / Q000295:instrumentation