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Levasseur",{"name":27,"role":63,"phone":18,"phoneExt":18,"email":18},{"type":80,"investigatorFullName":81,"investigatorTitle":82,"investigatorAffiliation":5,"oldNameTitle":18,"oldOrganization":18},"SPONSOR_INVESTIGATOR","Kevin Houston","Investigator",[84],{"name":85,"class":6},"American Academy of Optometry","100548147","head-cancelled-virtual-reality-for-ocular-cranial-nerve-palsies-100548147",false,"NCT06417216","Head-Cancelled Virtual Reality for Ocular Cranial Nerve Palsies","Head-Cancelled Virtual Reality for Rehabilitation of Ocular Cranial Nerve Palsies","OCNP","OCNP Group Inclusion Criteria:\n\n* Presence of OCNP in one eye with 50% range-of-motion limitation or worse\n* Able to provide informed consent and will be able to fluently read and understand spoken English\n\nOCNP Group Exclusion Criteria:\n\n* Presence of bilateral OCNP\n* Range of motion better than 50%\n* Visual acuity worse than 20\u002F100 in either eye\n* Greater than 4-line difference in visual acuity between the eyes,\n* Structural anomalies or sensory sensitivities (e.g. visual motion sensitivity) that would prevent them from wearing or tolerating a VR headset\n\nParticipants will be excluded if they are unable to participate if inclusion criteria are not met.\n\nNormal Group Inclusion Criteria:\n\n* Absence of OCNP or other neurological or neuro-ophthalmic diseases\n* No strabismus\n* Have normal or near-normal vision with glasses or contact lenses.\n* Be able to provide informed consent and will be able to fluently read and understand spoken English\n\nNormal Group Exclusion Criteria:\n\n* Visual acuity worse than 20\u002F100 in either eye\n* Greater than 4-line difference in visual acuity between the eyes\n* Structural anomalies or sensory sensitivities (e.g. visual motion sensitivity) that would prevent them from wearing or tolerating a VR headset\n* Known inability to tolerate visual testing of at least 20 minutes continuously.",true,"ALL","18 Years",{"count":98,"type":99},40,"ESTIMATED","INTERVENTIONAL",[102],"NA","This study is investigating whether eye exercises for abducens palsy and internuclear ophthalmoplegia increase ocular range of motion in the paretic direction when performed in virtual reality under head-cancelled compared to head-active conditions.",[105,106],"Internuclear Ophthalmoplegia","Palsy, Abducens","2026-04-01",{"date":109,"type":110},"2026-04-06","ACTUAL",{"date":112,"type":110},"2024-09-10",{"date":114,"type":99},"2028-06-01",{"name":81,"class":6},2]