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November 29, 1958


JAMA. 1958;168(13):1785. doi:10.1001/jama.1958.03000130051013

At a Cornell Conference on Therapy1 last fall ideas about many facets of ocular hygiene and the wearing of eyeglasses were aired. Dr. John McLean presented the conference with ammunition with which the general practitioner may combat false popular ideas. For example refractive errors have from time to time been held responsible for many symptoms including nausea, and the characteristic attacks of migraine. In all such cases another cause should be sought because uncorrected refractive errors can cause only lack of visual acuity, fatigue of the muscles of accommodation, and headache. This fatigue, like fatigue in any other muscle, disappears with rest and is not cumulative. Some patients with other symptoms are relieved when corrective glasses are worn, but in such cases the symptoms were psychosomatic and the relief is likely to be temporary. Dr. McLean said that relatively few headaches were of ocular origin, but many if not