Measurement
SCA: Snellen Chart Assessment
Reference and/or access link:
McGraw P, Winn B, Whitaker D. Reliability of the Snellen chart BMJ 1995; 310 :1481 doi:10.1136/bmj.310.6993.1481
McGraw P, Winn B, Whitaker D. Reliability of the Snellen chart BMJ 1995; 310 :1481 doi:10.1136/bmj.310.6993.1481