To the Editor:
—The paper by Dr. Francis Heed Adler and F. Elizabeth Jackson published under this title in the September 1947 issue of the Archives is, in my opinion, an important step toward the clarification of the problem of retinal correspondence in squint. The data contained in the paper were derived from a large number of uniformly observed cases, and as to their validity there can be no question. Still, with the authors' tabulation and interpretation of their data at least one reader cannot fully agree.In analyzing their cases, Adler and Jackson found that out of 175 cases of squint, normal correspondence was present in 64, or 35 per cent. The remaining 111 cases are tabulated under the heading "anomalous correspondence." This is regrettable, since to the superficial or uninitated reader it will convey the impression that the authors' data confirm the belief that anomalous correspondence is a