The work which in recent years has been developed at the Dartmouth Eye Institute, Hanover, N. H., by Ames and his associates1 has become familiar to most ophthalmologists. The practical clinical application of the correction of aniseikonia has apparently not been demonstrated sufficiently to establish in the minds of practicing physicians the need for considering the condition a part of the symptom complex of asthenopia. The reaction of many physicians and laymen has been that there has been considerable publicity without a commensurate guarantee of symptomatic relief.
This paper consists of a comparison of two instruments designed for the purpose of measuring the relative discrepancy in size and shape between the ocular images of the two eyes. The first instrument is the "eikonometer," designed by the Dartmouth Eye Institute2 in conjunction with the American Optical Company. The other is the "comparator,"3 designed by Kerry and his co-workers
FIELD HB. A COMPARISON OF OCULAR IMAGERY. Arch Ophthalmol. 1943;29(6):981–988. doi:10.1001/archopht.1943.00880180131012
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