. Refraction and muscular imbalance, as simplified through the use of the ski-optometer. r test, as w^as quickly and morereadily determined in the binocular test. Likewise, in cases of esophoria, hyper-phoria, or cataphoria, the making of definitemuscle measurements independently throughthe prescribed method would show throughthe merest glance at a similar diagram whichmuscle or muscles were relatively out of bal-ance. Heterphoria of almost any type, ortendencies other than normal, may be fullyinvestigated by making a thorough and sepa-rate test of each muscle. Where an imbalance exists, a rap
. Refraction and muscular imbalance, as simplified through the use of the ski-optometer. r test, as w^as quickly and morereadily determined in the binocular test. Likewise, in cases of esophoria, hyper-phoria, or cataphoria, the making of definitemuscle measurements independently throughthe prescribed method would show throughthe merest glance at a similar diagram whichmuscle or muscles were relatively out of bal-ance. Heterphoria of almost any type, ortendencies other than normal, may be fullyinvestigated by making a thorough and sepa-rate test of each muscle. Where an imbalance exists, a rapid test maybe employed to distinguish a pseudo or falsecondition from a true condition. This is ac-complished by first placing the two Maddoxrods (both the red and white) so that the rodslie in a vertical position. If the two lines fuse,we have determined the existence of a falsecondition caused by a possible error of refrac-tion or nerve strain. If the lines separate, wehave determined a true muscular condition,and then only should the second method ofmuscular treatment follow. [68]. Same as Model 2i^but AutomaticCylinder Arrange-ment omitted. Ski-optometer Model 205 Embodying: Spherical Lenses Combined with Appliancesfor Testing and Correcting Muscular Imbalance. [69] T Chapter IX FIRST m?:thod of treatment _ OPTICAL CORRECTION ^HE mere determination of the degree ofan imbalance, or even the diagnosis of apatients trouble, is not sufficient. If relief isto be secured, something more must be ac-complished. As previously stated, muscular imbalancemay be corrected through one of the four fol-lowing rules or methods, each explained intheir relative order: 1—Optical Correction2—Muscular Exercise3—Use of Prism Lenses-Operative Methods ESOPHORIA To correct a case of muscular imbalance,where six degrees of esophoria has been de-termined, the first rule of making the test foroptical correction with the Ski-optometersspherical and cylindrical lenses, would be inthe line of routin
Size: 1716px × 1456px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookidrefractionmu, bookyear1921
