Article Text

PDF
First description of aniseikonia
  1. G Westheimer
  1. Correspondence to: Professor G Westheimer Division of Neurobiology, University of California, Berkeley, CA 94720-3200, USA; gwestheimer{at}berkeley.edu

Statistics from Altmetric.com

The first mention of inequality of retinal image size has been traced back from 1864 to 1669

The clinical syndrome of aniseikonia, where the retinal images differ in size in the right and left eyes, was prominent during the middle of the last century. Precise methods were developed for its measurement, sophisticated optical devices were designed for its correction and the topic gave a substantial impetus to the analysis of the geometry of visual space.

The history of aniseikonia is covered in his usual thorough and scholarly manner by Duke-Elder.1 Ophthalmologists had wrestled with the problem in the late 19th century, but according to Duke-Elder, its first treatment was by Donders2 in his seminal On the anomalies of accommodation and refraction of the eye published in 1864. In connection with the difficulties experienced by patients on the first correction of anisometropia, Donders wrote:

The cause of this is principally that when the distance of distinct vision is made equal, the image of …

View Full Text

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.