| Identifier |
20230314_nanos_posters_315 |
| Title |
The Ceiling is Also Lava: Circumventing a Ceiling Effect in Smartphone Perimetry with Size Modulation |
| Creator |
Edward Linton; Michael Wall; Iván Marin-Franch; Anushi Wijayagunaratne |
| Affiliation |
(EL) Dept. Ophthalmology, University of Iowa; (MW) University of Iowa Hospitals and Clinics; (IM) Optocom, Computational Optometry; (AW) Carver College of Medicine at the University of Iowa |
| Subject |
Visual Fields; Diagnostic Tests (ERG, VER, OCT, HRT, mfERG, etc); Perimetry |
| Description |
Digital perimetry using a smartphone and headset adapter has the potential to increase access to inexpensive perimetry. Display hardware grayscale resolution (8-bit = 256 steps), gamma function, maximum intensity, and the chosen background luminance constrain the dynamic range and stimulus increments available for presentation. Frequency-of-seeing curves for perimetric stimuli robustly model sensitivity thresholds and variability. We compared perimetry with size-modulation to light intensity modulation for clinical utility using frequency-of-seeing curves. |
| Date |
2023-03-14 |
| References |
Marín-Franch I, Turpin A, Artes PH, Chong LX, McKendrick AM, Alawa KA, Wall M. The Open Perimetry Initiative: A framework for cross-platform development for the new generation of portable perimeters. J Vis. 2022 Apr 6;22(5):1. doi: 10.1167/jov.22.5.1. PMID: 35385053; PMCID: PMC8994165. Alawa KA, Nolan RP, Han E, Arboleda A, Durkee H, Sayed MS, Aguilar MC, Lee RK. Low-cost, smartphone-based frequency doubling technology visual field testing using a head-mounted display. Br J Ophthalmol. 2021 Mar;105(3):440-444. doi: 10.1136/bjophthalmol-2019-314031. Epub 2019 Sep 17. PMID: 31530566. |
| Language |
eng |
| Format |
application/pdf |
| Type |
Text |
| Source |
2023 North American Neuro-Ophthalmology Society Annual Meeting |
| Relation is Part of |
NANOS Annual Meeting 2023: Poster Session II: New Diagnostic Measurement Techniques |
| 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 |
| Rights Management |
Copyright 2023. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright |
| ARK |
ark:/87278/s6qjzkcq |
| Setname |
ehsl_novel_nam |
| ID |
2335520 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6qjzkcq |
