Research Reports - Restoration of vision after brain injury using magnet glasses

Am J Phys Med Rehabil. 2016 Aug 22. [Epub ahead of print]

Houston KE(1), Pachalis EI, Angueira DC, Bronstad PM, Barrett AM, Iaccarino MA.

Visual impairments are common after traumatic brain injury (TBI) and negatively
affect quality of life. We describe a 39-year-old woman with a severe TBI who was
evaluated by the inpatient optometry and vision rehabilitation service with
findings of complete right homonymous hemianopia and right cranial nerve III
palsy with 30-degree right exotropia (eye turn out) and complete right ptosis
(eyelid will not open). The 30-degree exotropia advantageously generated 30
degrees of right visual field expansion when the right ptosis was treated with a
magnetic levator prosthesis, which restores eyelid opening. Once opened, the
patient used visual field expansion derived from a right exotropia to overcome
functional impairments caused by right hemianopia. Field expansion improved the
patient's wheelchair mobility and reaching tasks during inpatient therapy. This
is the first report of visual field expansion by strabismus facilitated by
correction of ptosis. Strabismus should be considered for its potential field
expansion benefits when homonymous visual deficits are present, before
considering patching. A multidisciplinary vision rehabilitation team is well
suited to make this determination. 

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