| Identifier |
20150224_nanos_posters_153 |
| Title |
A Method for Quantifying Off Chart Visual Acuities |
| Creator |
Rustum Karanjia; Tiffany J. Hwang; Alexander F. Chen; Matin Khoshnevis; Edward R. Chu; Alfredo A. Sadun |
| Affiliation |
(RK) (ERC) (AAS) Doheny Eye Centers, University of California at Los Angeles, Pasadena, CA; (TJH) (AFC) Keck School of Medicine, Los Angeles, CA; (MK) University of Los Angeles at Irvine, Irvine, CA |
| Subject |
Diagnostic Testing |
| Description |
Retrospective chart reviews can provide data to test and generate hypotheses, however, they are limited to the data collected, which in some instances is not sufficiently quantitative. Visual acuity for instance would ideally be collected by ETDRS methods for prospective clinical trials. This is often not the case with retrospective studies, where off chart visual acuities (typically <20/400) are recorded as count fingers (CF) at a set distance, hand motion or light perception. The purpose of this study was to determine by geometric optics the Snellen equivalent visual acuities for count fingers at different distances. |
| Date |
2015 |
| Language |
eng |
| Format |
application/pdf |
| Type |
Text |
| Source |
2015 North American Neuro-Ophthalmology Society Annual Meeting |
| Collection |
Neuro-ophthalmology Virtual Education Library: NOVEL http://NOVEL.utah.edu |
| Publisher |
Spencer S. Eccles Health Sciences Library, University of Utah |
| Holding Institution |
North American Neuro-Ophthalmology Association. NANOS Executive Office 5841 Cedar Lake Road, Suite 204, Minneapolis, MN 55416 |
| ARK |
ark:/87278/s64n2bf1 |
| Context URL |
The NANOS Annual Meeting Neuro-Ophthalmology Collection: https://novel.utah.edu/collection/NAM/toc/ |
| Setname |
ehsl_novel_nam |
| ID |
185028 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s64n2bf1 |
