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You searched for +publisher:"University of St. Andrews" +contributor:("Vishwanath, Dhanraj"). One record found.

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University of St. Andrews

1. Zlatkute, Giedre. Exploring depth and distance perception in strabismus .

Degree: 2019, University of St. Andrews

Strabismus can be defined as the inability to coordinate the eye muscles that ordinarily fixate the two eyes on a single target, resulting in lack of a single binocular vision. Strabismus as a disorder has been known since the times of Hippocrates. However, the exact extent of the limitations in depth and distance perception in strabismic individuals with limited or no binocular stereovision in comparison to typically developed binocular individuals remains unclear. This thesis aimed to explore differences in depth perception between strabismic and non-strabismic individuals by examining qualitative aspects of depth perception, egocentric distance perception, and relative depth perception. These aspects were examined by conducting two experiments for each. The first two experiments revealed that feeling of immersive and tangible depth (a.k.a. stereopsis) is not uniquely linked to binocular disparities and may be experienced by individuals with varying levels of binocular stereovision under monocular aperture viewing (evoking monocular stereopsis). The next two experiments explored egocentric distance perception by measuring familiar object size judgments (as a proxy for distance perception) under monocular, binocular, and stereoscopic viewing. All subjects made similar size judgments under all viewing conditions. The last two experiments showed that observers with no/limited stereovision do not have deficits in the perception of relative depth from perspective cues. They showed similar levels of susceptibility and capacity to make depth judgements from the perspective cue to those of stereonormal individuals. The results of this thesis add systematic insight into understanding the way individuals with strabismus perceive depth and distance in comparison to typically developed binocular individuals. Overall, it suggests that there are more similarities between these two groups in the perception of 3D space than suggested by anecdotal reports and conjecture. This emphasizes the need for further systematic exploration to determine the specific limitations strabismics face whilst performing everyday tasks. Advisors/Committee Members: Vishwanath, Dhanraj (advisor).

Subjects/Keywords: Strabismus; Binocular stereovision; Monocular stereopsis; Egocentric distance; Relative pictorial depth

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Zlatkute, G. (2019). Exploring depth and distance perception in strabismus . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/18959

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Zlatkute, Giedre. “Exploring depth and distance perception in strabismus .” 2019. Thesis, University of St. Andrews. Accessed July 10, 2020. http://hdl.handle.net/10023/18959.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Zlatkute, Giedre. “Exploring depth and distance perception in strabismus .” 2019. Web. 10 Jul 2020.

Vancouver:

Zlatkute G. Exploring depth and distance perception in strabismus . [Internet] [Thesis]. University of St. Andrews; 2019. [cited 2020 Jul 10]. Available from: http://hdl.handle.net/10023/18959.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zlatkute G. Exploring depth and distance perception in strabismus . [Thesis]. University of St. Andrews; 2019. Available from: http://hdl.handle.net/10023/18959

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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