Retinal Images in Oblique Astigmatism.

Abstract

Chicago, March 24, 1895. <h3>To the Editor:</h3> —Dr. Savage's letter in the issue of March 16 reminds me very much of the comment on a book of which the reviewer has read only the title page and imagined the rest. Indeed, Dr. Savage would be a mind reader of extraordinary ability if he could have guessed correctly the full extent of my remarks before the Chicago Ophthalmological Society from the simple sentence of the report, "he proved by demonstrations that oblique astigmatism does not cause obliquity of the retinal images." Since Dr. Savage did not know anything about my arguments it is not surprising that his criticism is so little to the point and consists simply in "threshing over old straw." The object of my remarks was to demonstrate the fallacy of the proposition that in oblique astigmatism the retinal images of horizontal or vertical objects are not themselves horizontal