Comparing the CamBlobs2 contrast sensitivity test to the near Pelli‐Robson contrast sensitivity test in normally‐sighted young adults

2021 ◽  
Vol 41 (5) ◽  
pp. 1125-1133
Author(s):  
Sujata Rijal ◽  
Han Cheng ◽  
Jason D Marsack
Keyword(s):  
Young Adults ◽  
Contrast Sensitivity ◽  
Sensitivity Test

Establishment of a normative database and evaluation of the test-retest repeatability of the Spaeth/Richman contrast sensitivity test

2018 ◽  
Vol 63 (1) ◽  
pp. 73-81 ◽  
Author(s):  
Lalita Gupta ◽  
Michael Waisbourd ◽  
Carina T. Sanvicente ◽  
Michael Hsieh ◽  
Sheryl S. Wizov ◽  
...  
Keyword(s):  
Contrast Sensitivity ◽  
Sensitivity Test ◽  
Normative Database

Scotopic contrast sensitivity test: a rapid method for evaluating foveal functions

2005 ◽  
Author(s):  
Yossie Mandel ◽  
Uri Polat ◽  
Ariel Bar ◽  
Oren Yehezkel ◽  
Mordechai Rosner ◽  
...  
Keyword(s):  
Contrast Sensitivity ◽  
Rapid Method ◽  
Sensitivity Test

The application of Colour Contrast Sensitivity test to the early prediction of chiasm damage in cases of pituitary adenoma

2014 ◽  
Vol 92 ◽  
pp. 0-0
Author(s):  
L KRIAUCIUNIENE ◽  
G SLATKEVICIENE ◽  
R LIUTKEVICIENE ◽  
D ZALIUNIENE ◽  
G BERNOTAS ◽  
...  
Keyword(s):  
Pituitary Adenoma ◽  
Contrast Sensitivity ◽  
Sensitivity Test ◽  
Early Prediction ◽  
Colour Contrast

The Spaeth/Richman contrast sensitivity test (SPARCS): design, reproducibility and ability to identify patients with glaucoma

2014 ◽  
Vol 99 (1) ◽  
pp. 16-20 ◽  
Author(s):  
Jesse Richman ◽  
Camila Zangalli ◽  
Lan Lu ◽  
Sheryl S Wizov ◽  
Eric Spaeth ◽  
...  
Keyword(s):  
Contrast Sensitivity ◽  
Sensitivity Test

EVALUATING CONTRAST SENSITIVITY IN AGE-RELATED MACULAR DEGENERATION USING A NOVEL COMPUTER-BASED TEST, THE SPAETH/RICHMAN CONTRAST SENSITIVITY TEST

Retina ◽  
2015 ◽  
Vol 35 (7) ◽  
pp. 1465-1473 ◽  
Author(s):  
Bruno M. Faria ◽  
Fulya Duman ◽  
Cindy X. Zheng ◽  
Michael Waisbourd ◽  
Lalita Gupta ◽  
...  
Keyword(s):  
Macular Degeneration ◽  
Contrast Sensitivity ◽  
Sensitivity Test ◽  
Age Related Macular Degeneration ◽  
Age Related ◽  
Computer Based

A new contrast sensitivity test for young children--The Cardiff Contrast Test

1997 ◽  
Vol 17 (2) ◽  
pp. 175-175
Author(s):  
Rahim Barbareza ◽  
Margaret Woodhouse ◽  
Kola Oduwaiye
Keyword(s):  
Young Children ◽  
Contrast Sensitivity ◽  
Sensitivity Test

scholarly journals Simulating Visibility and Reading Performance in Low Vision

2021 ◽  
Vol 15 ◽  
Author(s):  
Ying-Zi Xiong ◽  
Quan Lei ◽  
Aurélie Calabrèse ◽  
Gordon E. Legge
Keyword(s):  
Young Adults ◽  
Contrast Sensitivity ◽  
Low Vision ◽  
Reading Speed ◽  
Reading Performance ◽  
Digital Text ◽  
Reading Acuity ◽  
Vision Simulation ◽  
Print Size ◽  
Better Than

PurposeLow vision reduces text visibility and causes difficulties in reading. A valid low-vision simulation could be used to evaluate the accessibility of digital text for readers with low vision. We examined the validity of a digital simulation for replicating the text visibility and reading performance of low-vision individuals.MethodsLow-vision visibility was modeled with contrast sensitivity functions (CSFs) with parameters to represent reduced acuity and contrast sensitivity. Digital filtering incorporating these CSFs were applied to digital versions of the Lighthouse Letter Acuity Chart and the Pelli-Robson Contrast Sensitivity Chart. Reading performance (reading acuity, critical print size, and maximum reading speed) was assessed with filtered versions of the MNREAD reading acuity Chart. Thirty-six normally sighted young adults completed chart testing under normal and simulated low-vision conditions. Fifty-eight low-vision subjects (thirty with macular pathology and twenty-eight with non-macular pathology) and fifteen normally sighted older subjects completed chart testing with their habitual viewing. We hypothesized that the performance of the normally sighted young adults under simulated low-vision conditions would match the corresponding performance of actual low-vision subjects.ResultsWhen simulating low-vision conditions with visual acuity better than 1.50 logMAR (Snellen 20/630) and contrast sensitivity better than 0.15 log unit, the simulation adequately reduced the acuity and contrast sensitivity in normally sighted young subjects to the desired low-vision levels. When performing the MNREAD test with simulated low vision, the normally sighted young adults had faster maximum reading speed than both the Non-macular and Macular groups, by an average of 0.07 and 0.12 log word per minute, respectively. However, they adequately replicated the reading acuity as well as the critical print size, up to 2.00 logMAR of both low-vision groups.ConclusionA low-vision simulation based on clinical measures of visual acuity and contrast sensitivity can provide good estimates of reading performance and the accessibility of digital text for a broad range of low-vision conditions.

Sign in / Sign up

Export Citation Format

Share Document