TINTED LENSES IN OPHTHALMOLOGY

To the Editor:—  I congratulate W. W. Coblentz for calling attention to the unproved theories and extravagant claims made by certain manufacturers concerning tinted lenses. In his effort to emphasize his criticism, however, I feel that he has gone too far in creating the impression that tinted lenses are without merit. Tinted lenses have a definite and positive therapeutic value in many ocular diseases. I base this statement not on theory but on practical experience in prescribing tinted lenses for many purposes over a period of many years and on the answers to a questionnaire recently addressed to prominent ophthalmologists throughout the United States. The replies are all from ophthalmologists certified by the American Board of Ophthalmic Examinations and from eye surgeons in various sections of the country, representing a cross section of the ophthalmic profession. A great majority of these recommend the use of tinted lenses for the following