Refraction and muscular imbalance, as simplified through the use of the ski-optometer
CHAPTER III
HOW THE SKI-OPTOMETER ASSISTS IN REFRACTION 17 The Use of the Ski-optometer in Skioscopy 17 A Simplified Skioscopic Method 20 Employing Spheres and Cylinders in Skioscopy 22 Use of the Ski-optometer in Subjective Testing 23 A Simplified Subjective Method 24 Procedure for Using Minus Cylinders Exclusively 26 Constant Attention Not Required 29