{"id":{"repo_id":"njit","oai_identifier":"oai:digitalcommons.njit.edu:theses-1200"},"canonical_url":"https://search.dev.ndltd.org/etd/njit/oai:digitalcommons.njit.edu:theses-1200","repository":{"repo_id":"njit","name":"NJIT","base_url":"https://digitalcommons.njit.edu/do/oai/"},"display":{"title":"The effect of vergence vision training on binocularly normal subjects","abstract":"Vergence is the disjunctive (inward or outward) movement of the eyes that is stimulated by retinal disparity (difference of where an image is projected to the retina and the fovea). A recent randomized clinical trial showed the efficacy of vision therapy for children with the binocular dysfunction known as convergence insufficiency is 73%. However, it is unknown whether binocularly normal persons will have any significant change to their vergence ocular motor system if they participate in vision training sessions. A total of ten (n = 10) binocularly normal persons participated in this study (18 to 28 years of age). A haploscope with an integrated infrared video-based eye tracking system manufactured by ISCAN presented vergence stimuli to the subject to record eye movement data before and after 12 hours of vision therapy with a custom LabVIEW program. Vision therapy entailed a random walk of 2 and 4 steps at near and far space along with ramps ranging from 1 to 20 of total vergence angular rotation. All processing and statistical analyses were conducted in MATLAB. All subjects experienced a significant decrease in time to peak velocity (p<0.05). However, each subject's peak velocity values were subject dependent and either increased, decreased, or maintained at the same level after training. The peak velocity of responses to 2 steps began to approach a more critically damped linear control system after vision training supporting an improvement in the accuracy of responses. Data support that even in binocularly normal control subjects; vision therapy improves vergence eye movements quantified as significant improvements in the time to fuse the new target and significantly more accurate responses compared to each subject's baseline measurements.","abstract_html":"Vergence is the disjunctive (inward or outward) movement of the eyes that is stimulated by retinal disparity (difference of where an image is projected to the retina and the fovea). A recent randomized clinical trial showed the efficacy of vision therapy for children with the binocular dysfunction known as convergence insufficiency is 73%. However, it is unknown whether binocularly normal persons will have any significant change to their vergence ocular motor system if they participate in vision training sessions. A total of ten (n = 10) binocularly normal persons participated in this study (18 to 28 years of age). A haploscope with an integrated infrared video-based eye tracking system manufactured by ISCAN presented vergence stimuli to the subject to record eye movement data before and after 12 hours of vision therapy with a custom LabVIEW program. Vision therapy entailed a random walk of 2 and 4 steps at near and far space along with ramps ranging from 1 to 20 of total vergence angular rotation. All processing and statistical analyses were conducted in MATLAB. All subjects experienced a significant decrease in time to peak velocity (p&lt;0.05). However, each subject&#x27;s peak velocity values were subject dependent and either increased, decreased, or maintained at the same level after training. The peak velocity of responses to 2 steps began to approach a more critically damped linear control system after vision training supporting an improvement in the accuracy of responses. Data support that even in binocularly normal control subjects; vision therapy improves vergence eye movements quantified as significant improvements in the time to fuse the new target and significantly more accurate responses compared to each subject&#x27;s baseline measurements.","abstract_has_math":false,"creators":["Talasan, Henry"],"institution":null,"degree_name":"Master of Science in Biomedical Engineering - (M.S.)","degree_level":null,"degree_discipline":"Biomedical Engineering","degree_department":null,"school":null,"contributors":["Tara L. Alvarez","Sergei Adamovich","Raquel Perez-Castillejos"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-05-31T07:00:00Z","date_published":"2014-05-31T07:00:00Z","updated_at":"2026-07-24T03:22:26Z","subjects":["Vergence occular motor system","Vision training","Binocularly normal","Biomedical Engineering and Bioengineering"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://digitalcommons.njit.edu/theses/201","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Tara L. 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A recent randomized clinical trial showed the efficacy of vision therapy for children with the binocular dysfunction known as convergence insufficiency is 73%. However, it is unknown whether binocularly normal persons will have any significant change to their vergence ocular motor system if they participate in vision training sessions. A total of ten (n = 10) binocularly normal persons participated in this study (18 to 28 years of age). A haploscope with an integrated infrared video-based eye tracking system manufactured by ISCAN presented vergence stimuli to the subject to record eye movement data before and after 12 hours of vision therapy with a custom LabVIEW program. Vision therapy entailed a random walk of 2 and 4 steps at near and far space along with ramps ranging from 1 to 20 of total vergence angular rotation. All processing and statistical analyses were conducted in MATLAB. All subjects experienced a significant decrease in time to peak velocity (p<0.05). However, each subject's peak velocity values were subject dependent and either increased, decreased, or maintained at the same level after training. The peak velocity of responses to 2 steps began to approach a more critically damped linear control system after vision training supporting an improvement in the accuracy of responses. Data support that even in binocularly normal control subjects; vision therapy improves vergence eye movements quantified as significant improvements in the time to fuse the new target and significantly more accurate responses compared to each subject's baseline measurements."]},{"key":"dc:title","label":"Title","values":["The effect of vergence vision training on binocularly normal subjects"]}]}],"canonical_facts":{"dc:contributor":["Tara L. Alvarez","Sergei Adamovich","Raquel Perez-Castillejos"],"dc:creator":["Talasan, Henry"],"dc:description.abstract":["Vergence is the disjunctive (inward or outward) movement of the eyes that is stimulated by retinal disparity (difference of where an image is projected to the retina and the fovea). A recent randomized clinical trial showed the efficacy of vision therapy for children with the binocular dysfunction known as convergence insufficiency is 73%. However, it is unknown whether binocularly normal persons will have any significant change to their vergence ocular motor system if they participate in vision training sessions. A total of ten (n = 10) binocularly normal persons participated in this study (18 to 28 years of age). A haploscope with an integrated infrared video-based eye tracking system manufactured by ISCAN presented vergence stimuli to the subject to record eye movement data before and after 12 hours of vision therapy with a custom LabVIEW program. Vision therapy entailed a random walk of 2 and 4 steps at near and far space along with ramps ranging from 1 to 20 of total vergence angular rotation. All processing and statistical analyses were conducted in MATLAB. All subjects experienced a significant decrease in time to peak velocity (p<0.05). However, each subject's peak velocity values were subject dependent and either increased, decreased, or maintained at the same level after training. The peak velocity of responses to 2 steps began to approach a more critically damped linear control system after vision training supporting an improvement in the accuracy of responses. Data support that even in binocularly normal control subjects; vision therapy improves vergence eye movements quantified as significant improvements in the time to fuse the new target and significantly more accurate responses compared to each subject's baseline measurements."],"dc:identifier":["https://digitalcommons.njit.edu/theses/201"],"dc:subject":["Vergence occular motor system","Vision training","Binocularly normal","Biomedical Engineering and Bioengineering"],"dc:title":["The effect of vergence vision training on binocularly normal subjects"],"dc:type":["Thesis"],"thesis:degree_discipline":["Biomedical Engineering"],"thesis:degree_name":["Master of Science in Biomedical Engineering - (M.S.)"]},"updated_at":"2026-07-24T03:22:26Z"}