Gellman M, Hirsch J
Comparison of soflens contact lenses (polymacon) with hard contact lenses and spectacles. [Journal Article]
Am J Optom Physiol Opt 1975 Feb; 52(2):128-33.
A study, comparing Soflens TM contact lenses (polymacon) with hard contact lenses and spectacles, and using 150 male and female patients, has been done. Volunteers qualified for the study if they had healthy eyes and had worn one type of corrective lenses for six months before they were interviewed and examined. During each patient's examination, his type of correction was not known. Such matters as visual acuity, corneal measurements and average wearing time were considered. (Soflens contact lenses were felt to be safer than hard contact lenses.)
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