Refraction and muscular imbalance, as simplified through the use of the ski-optometer
CHAPTER X
SECOND METHOD OF TREATMENT—MUSCULAR EXERCISE 75 Made with Two Rotary Prisms and Red Maddox Rod 75 Exophoria 75 An Assumed Case 78 Effect of Muscular Exercise 80 Home Treatment for Muscular Exercise—Square Prism Set Used in Conjunction with the Ski-optometer 82