Contrast sensitivity and vision-related quality of life assessment in the pediatric low vision population
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The Ohio State University / OhioLINK
2014
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ndltd-OhioLink-oai-etd.ohiolink.edu-osu13977517852021-08-03T06:24:05Z Contrast sensitivity and vision-related quality of life assessment in the pediatric low vision population Hopkins, Gregory Robert, II Ophthalmology Health Care low vision contrast sensitivity visual acuity pediatrics quality of life orientation and mobility A new test of contrast sensitivity (CS), the Stripe Card Contrast Sensitivity (SCCS) test, could serve as a simple and efficient means for estimating the maximum contrast sensitivity value of a given patient without having to use multiple spatial frequency gratings, and without knowing the spatial frequency at which maximum sensitivity occurs. This test could be useful for a wide range of patients with various levels of visual acuity (VA), ages, and diagnoses.We measured VA [Bailey-Lovie (BL), Teller Acuity Cards (TAC)] and CS [Pelli-Robson (PR), SCCS, Berkeley Discs (BD)] in counterbalanced order with subjects at the Ohio State School for the Blind (OSSB). Thus, we tested VA and CS using letter charts (B-L, P-R), grating cards (TAC, SCCS) and a chart with shapes (BD). Vision-related quality of life (QoL) surveys [The Impact of Visual Impairment in Children (IVI_C) and Low Vision Prasad Functional Vision Questionnaire (LVP-FVQ)] were used following vision testing. Additionally, we obtained Michigan Orientation & Mobility (O&M) Severity Rating Scale (OMSRS) severity of need scores for some participants.Testing was performed over a two-year period for 51 participants at OSSB. We have organized our work into three experiments: Experiment I was performed in the 2012-13 school year and included 27 participants who were tested monocularly using the patient’s preferred eye. The following year, we returned for repeat testing of 11 participants from the first year (“Experiment IIa”) and additional testing of 24 new participants (“Experiment IIb”). Those assessments were performed on each eye monocularly (where possible) rather than just with the preferred eye. QoL and O&M results were obtained during both years of testing and are detailed in Experiment III.Vision tests on the better eyes correlated positively and significantly with one another, except for a non-significant correlation between the B-L and SCCS. The IVI_C correlated significantly with all vision tests, except B-L acuity, with better visual function always correlating with higher quality of life. The LVP-FVQ correlated significantly with all metrics employed. The OMSRS scores did not correlate significantly with any of our metrics, except the LVP-FVQ, probably because so few subjects provided data for the OMSRS.Both of the grating tests (SCCS and TAC) and the BD indicated better visual performance than the corresponding letter acuity and contrast charts for subjects with reduced vision. For measuring contrast sensitivity in those with reduced vision, the simpler task and bolder patterns of the SCCS and BD may make them more likely to reveal the maximum performance that a given patient can achieve. 2014-09-18 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1397751785 http://rave.ohiolink.edu/etdc/view?acc_num=osu1397751785 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Ophthalmology Health Care low vision contrast sensitivity visual acuity pediatrics quality of life orientation and mobility |
| spellingShingle |
Ophthalmology Health Care low vision contrast sensitivity visual acuity pediatrics quality of life orientation and mobility Hopkins, Gregory Robert, II Contrast sensitivity and vision-related quality of life assessment in the pediatric low vision population |
| author |
Hopkins, Gregory Robert, II |
| author_facet |
Hopkins, Gregory Robert, II |
| author_sort |
Hopkins, Gregory Robert, II |
| title |
Contrast sensitivity and vision-related quality of life assessment in the pediatric low vision population |
| title_short |
Contrast sensitivity and vision-related quality of life assessment in the pediatric low vision population |
| title_full |
Contrast sensitivity and vision-related quality of life assessment in the pediatric low vision population |
| title_fullStr |
Contrast sensitivity and vision-related quality of life assessment in the pediatric low vision population |
| title_full_unstemmed |
Contrast sensitivity and vision-related quality of life assessment in the pediatric low vision population |
| title_sort |
contrast sensitivity and vision-related quality of life assessment in the pediatric low vision population |
| publisher |
The Ohio State University / OhioLINK |
| publishDate |
2014 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=osu1397751785 |
| work_keys_str_mv |
AT hopkinsgregoryrobertii contrastsensitivityandvisionrelatedqualityoflifeassessmentinthepediatriclowvisionpopulation |
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