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Titles
- The construction and use of the ophthalmometer: an explanation and a correction1
- The modern phorometer, including the phorometer-trial frame, phoro-optometer, and the rotary cross-cylinder1
- The ophthalmometer of Javal and Schiötz and the diagnosis of astigmatism1
- The phoroptor1
- The value of the ophthalmometer in the determination of the axis and the amount of astigmatism1