W H TEICHNER,J L KOBRICK,E R DUSEK
W H TEICHNER
M H PIRENNE,F H MARRIOTT
M H PIRENNE
Refinement of checkerboard targets for measurement of visual acuity limens [0.03%]
用于测量视力阈值的棋盘格目标的优化
A MORRIS,M S KATZ,J D BOWEN
A MORRIS
R T MITCHELL,L H LIAUDANSKY
R T MITCHELL
G S HARKER
G S HARKER