. Refraction and muscular imbalance, as simplified through the use of the ski-optometer. each eye for cyclophoria. In a case where cyclophoria is determined,the trouble may be caused by the functioningof other muscles, through the drain of nerve [97] Refraction and Muscular Imbalaud force, thus disturbing the harmony of everymuscle action. Cyclophoria is frequently caused by an im-balance of two recti, giving an oblique most cases, it is merely necessary to releasethe torsion, as described in the followingchapter. [98] Chapter XIV CYCLODUCTION TEST Made With the Combined Use of the Two
. Refraction and muscular imbalance, as simplified through the use of the ski-optometer. each eye for cyclophoria. In a case where cyclophoria is determined,the trouble may be caused by the functioningof other muscles, through the drain of nerve [97] Refraction and Muscular Imbalaud force, thus disturbing the harmony of everymuscle action. Cyclophoria is frequently caused by an im-balance of two recti, giving an oblique most cases, it is merely necessary to releasethe torsion, as described in the followingchapter. [98] Chapter XIV CYCLODUCTION TEST Made With the Combined Use of the TwoMaddox Rods LJAVING determined that cyclophoria ex-ists, as previously outlined, the next stepwould be to make a cycloduction test, or a testof the oblique muscles individually. Maddoxrods, both red and white, should be placed inposition with the rods horizontal—the plus andminus sign at 90 degrees on the scale (). The patients attention should be direct-ed to the usual muscle-testing spot of light,when a vertical band of light will appear tothe patient, as shown in Fig.
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