Abstract
Entoptic phenomena are, to the average ophthalmologist, items of physiologic curiosity rather than useful clinical tools. Scheerer's phenomenon, which renders red blood cells circulating in the paramacular region visible, and Haidinger's brushes, which test the integrity of the nerve fibers of Henle's layer, are two of the entoptic phenomena which have advanced from experimental investigation to clinical application. They have proved to be of considerable practical importance, and it is unfortunate that they have not gained the popularity they deserve. We have applied these phenomena to to the study of several patients at the New York Eye and Ear Infirmary and have endeavored to analyze and interpret the results. SCHEERER'S PHENOMENON In one of his fundamental articles, Scheerer states that more than a dozen authors, among whom are Helmholtz and Purkinje, have described the phenomenon now known as Scheerer's phenomenon. Nearly all of them made their observation by just looking
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
