John Frederick William Herschel on testing for astigmatism in 1845.
Enoch
J M
JM
School of Optometry, University of California, Berkeley 94720.
Heitz
R F
RF
Lakshminarayanan
V
V
D001251:Astigmatism / Q000175:diagnosis*; D004739:England; D049672:History, 19th Century; D009885:Ophthalmology / Q000266:history