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Master's Thesis FORMATTED DONE.pdf (5.32 MB)

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The Binocular Visual Field in Glaucoma

Brucker, Margaret
http://orcid.org/0000-0003-1349-1147
http://rave.ohiolink.edu/etdc/view?acc_num=osu1523998138093264

Abstract Details

2018, Master of Science, Ohio State University, Vision Science.
Glaucoma is the second leading cause of irreversible blindness and affects over 70 million people worldwide. This disease is a chronic, insidious, and asymptomatic disease, and as a result, many cases remain undiagnosed. Perimetric visual field testing is used to test functional damage in glaucoma. The Humphrey visual field (HVF) standard automated perimeter, commonly considered as the gold standard instrument, is used to test monocular visual field loss in glaucoma. However, research has shown that testing the binocular visual field (BVF) is the most accurate estimation of the true functional visual field and measures of quality of life in these patients. In this experiment, glaucomatous patients were tested with a series of binocular tests to assess their binocular visual functions related to visual acuity, contrast sensitivity, and eye alignment. Breaking from the testing norm, this experiment also used a custom-designed stimulus based on the permanent suppression (PS) phenomenon to test the binocular inhibitory interaction in glaucoma. The PS simulation involved presenting one eye with a patterned stimulus and the fellow eye with a homogeneous field. During the PS testing, subjects donned a pair of red/blue anaglyphic filters and reported if any break was detected in the PS pattern. We hypothesized that a break would be detected if field loss existed in the eye viewing the patterned stimulus. The subjects reported the break by drawing out its perceived boundary and location on the stimulus, a task that took several seconds to accomplish. In our analysis, we compared the drawings from our PS method with the data obtained from the HVF method. Confirming our hypothesis, we found subjects tended to draw in the vicinity of the field loss indicated by the HVF measurements. This indicates that our novel PS stimulus can potentially be used as a supplementary test to determine visual field loss in a quick and efficient manner.
Teng-Leng Ooi (Advisor)
Jacqueline Davis (Committee Member)
Stacey Choi (Committee Member)
68 p.
Ophthalmology

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Citations

  • Brucker, M. (2018). The Binocular Visual Field in Glaucoma [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523998138093264

    APA Style (7th edition)

  • Brucker, Margaret . The Binocular Visual Field in Glaucoma. 2018. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1523998138093264.

    MLA Style (8th edition)

  • Brucker, Margaret . "The Binocular Visual Field in Glaucoma." Master's thesis, Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523998138093264

    Chicago Manual of Style (17th edition)

osu1523998138093264
367
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This open access ETD is published by The Ohio State University and OhioLINK.