. Refraction and muscular imbalance, as simplified through the use of the ski-optometer. come inthe Ski-optometer. Not only do the cylindrical lenses of theSki-optometer set directly next to the patientseye, thus overcoming any possible loss of re-fraction, but the strong spherical lenses of thesupplementary disk are set directly next to thecylinder. There is apparently but a hairsdistance between these lenses; the two diskscontaining the spherical lenses of the Ski-op-tometer likewise setting close together. In a word, the Ski-optometers cylinderlenses set directly next to the patients eye, f
. Refraction and muscular imbalance, as simplified through the use of the ski-optometer. come inthe Ski-optometer. Not only do the cylindrical lenses of theSki-optometer set directly next to the patientseye, thus overcoming any possible loss of re-fraction, but the strong spherical lenses of thesupplementary disk are set directly next to thecylinder. There is apparently but a hairsdistance between these lenses; the two diskscontaining the spherical lenses of the Ski-op-tometer likewise setting close together. In a word, the Ski-optometers cylinderlenses set directly next to the patients eye, fol-lowed by the stronger sphericals, so that theweakest spherical or +.25 (the lens of leastimportance) sets farthest away. This is 3i/<m/m closer than any trial frame manufac- [34] Refraction and Muscular Imbalance tured, however, and at least 10 m/m closerthan any other instrument—another reason forimplicitly relying on the Ski-optometer foruniformly accurate results. Built to Last a Lifetime The Ski-optometer is built on the plan of1/lOOC, insuring absolute rigidity and accu-.
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Keywords: ., bookcentury1900, bookdecade1920, bookidrefractionmu, bookyear1921
