{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/31642"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/31642","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Injury Biomechanics of the Human Eye During Blunt and Blast Loading","abstract":"The research presented in this thesis investigates eye injuries caused by blunt impacts and blast overpressure. This research represents part of an ongoing investigation to accurately quantify and predict eye injuries and injury mechanisms for various loading schemes. It has been shown that blunt trauma can cause severe eye injuries but it remains undecided whether blast overpressure alone can cause eye injury. Presented herein are four experimental studies that quantify eye injuries and implement a technique for predicting injury risk. Isolated porcine or human eyes were subjected to various loading conditions consisting of blunt projectiles, water streams, remote control helicopter blades, and blast overpressure. All eyes were prepared in a similar manner that required the insertion of a miniature pressure sensor into the globe through the optic nerve. This sensor measured intraocular pressure throughout each event. Using previously published injury risk curves, this intraocular pressure data was used to predict the injury risk for four eye injuries: hyphema, lens damage, retinal damage, and globe rupture. Injuries sustained were quantified upon direct inspection of the globe following testing. No serious eye injuries were observed for any of the tests and all tests resulted in low predicted injury risks consistent with the lack of observed injury. The research presented in this thesis provides a robust low injury level dataset for eye injuries. This data could be useful for designing and validating computational models and anthropomorphic test device eyes, and serves as a basis for future work with more dangerous projectiles and higher pressure levels.","abstract_html":"The research presented in this thesis investigates eye injuries caused by blunt impacts and blast overpressure. This research represents part of an ongoing investigation to accurately quantify and predict eye injuries and injury mechanisms for various loading schemes. It has been shown that blunt trauma can cause severe eye injuries but it remains undecided whether blast overpressure alone can cause eye injury. Presented herein are four experimental studies that quantify eye injuries and implement a technique for predicting injury risk. Isolated porcine or human eyes were subjected to various loading conditions consisting of blunt projectiles, water streams, remote control helicopter blades, and blast overpressure. All eyes were prepared in a similar manner that required the insertion of a miniature pressure sensor into the globe through the optic nerve. This sensor measured intraocular pressure throughout each event. Using previously published injury risk curves, this intraocular pressure data was used to predict the injury risk for four eye injuries: hyphema, lens damage, retinal damage, and globe rupture. Injuries sustained were quantified upon direct inspection of the globe following testing. No serious eye injuries were observed for any of the tests and all tests resulted in low predicted injury risks consistent with the lack of observed injury. The research presented in this thesis provides a robust low injury level dataset for eye injuries. This data could be useful for designing and validating computational models and anthropomorphic test device eyes, and serves as a basis for future work with more dangerous projectiles and higher pressure levels.","abstract_has_math":false,"creators":["Alphonse, Vanessa Dawn"],"institution":"Virginia Tech","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Biomedical Engineering","degree_department":"Biomedical Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":["Duma, Stefan M."],"committee_members":["Stitzel, Joel D.","Kemper, Andrew R.","VandeVord, Pamela J."],"year":2012,"date_issued":"2012-03-26","date_published":"2012-03-26","updated_at":"2026-07-22T22:20:27Z","subjects":["trauma","blast","blunt","risk","injury","eye"],"languages":[],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["etd-04062012-142936"],"render_values":[{"text":"etd-04062012-142936","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10919/31642","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.committeechair","label":"Committee Chair","values":["Duma, Stefan M."]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Stitzel, Joel D.","Kemper, Andrew R.","VandeVord, Pamela J."]},{"key":"dc:contributor.department","label":"Department","values":["Biomedical Engineering"]},{"key":"dc:creator","label":"Author","values":["Alphonse, Vanessa Dawn"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2014-03-14T20:33:11Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2014-03-14T20:33:11Z","2012-05-03"]},{"key":"dc:date.issued","label":"Date","values":["2012-03-26"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Tech"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Biomedical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["trauma","blast","blunt","risk","injury","eye"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["etd-04062012-142936"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/31642"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The research presented in this thesis investigates eye injuries caused by blunt impacts and blast overpressure. This research represents part of an ongoing investigation to accurately quantify and predict eye injuries and injury mechanisms for various loading schemes. It has been shown that blunt trauma can cause severe eye injuries but it remains undecided whether blast overpressure alone can cause eye injury. Presented herein are four experimental studies that quantify eye injuries and implement a technique for predicting injury risk. Isolated porcine or human eyes were subjected to various loading conditions consisting of blunt projectiles, water streams, remote control helicopter blades, and blast overpressure. All eyes were prepared in a similar manner that required the insertion of a miniature pressure sensor into the globe through the optic nerve. This sensor measured intraocular pressure throughout each event. Using previously published injury risk curves, this intraocular pressure data was used to predict the injury risk for four eye injuries: hyphema, lens damage, retinal damage, and globe rupture. Injuries sustained were quantified upon direct inspection of the globe following testing. No serious eye injuries were observed for any of the tests and all tests resulted in low predicted injury risks consistent with the lack of observed injury. The research presented in this thesis provides a robust low injury level dataset for eye injuries. This data could be useful for designing and validating computational models and anthropomorphic test device eyes, and serves as a basis for future work with more dangerous projectiles and higher pressure levels."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:title","label":"Title","values":["Injury Biomechanics of the Human Eye During Blunt and Blast Loading"]}]}],"canonical_facts":{"dc:contributor.committeechair":["Duma, Stefan M."],"dc:contributor.committeemember":["Stitzel, Joel D.","Kemper, Andrew R.","VandeVord, Pamela J."],"dc:contributor.department":["Biomedical Engineering"],"dc:creator":["Alphonse, Vanessa Dawn"],"dc:date.accessioned":["2014-03-14T20:33:11Z"],"dc:date.available":["2014-03-14T20:33:11Z","2012-05-03"],"dc:date.issued":["2012-03-26"],"dc:description.abstract":["The research presented in this thesis investigates eye injuries caused by blunt impacts and blast overpressure. 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Using previously published injury risk curves, this intraocular pressure data was used to predict the injury risk for four eye injuries: hyphema, lens damage, retinal damage, and globe rupture. Injuries sustained were quantified upon direct inspection of the globe following testing. No serious eye injuries were observed for any of the tests and all tests resulted in low predicted injury risks consistent with the lack of observed injury. The research presented in this thesis provides a robust low injury level dataset for eye injuries. 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