The effect of retinal defocus on simple eye-hand and eye-foot reaction time in traumatic brain injury (TBI).

Primary Objective: The purpose of the experiment was to assess the effect of retinal defocus on simple eye-hand (E-H) and eye-foot (E-F) reaction time (RT) in traumatic brain injury (TBI).

Design And Methods: Sixteen subjects with traumatic brain injury (five males and 11 females; aged 22-34 years) participated in the experiment. These were compared with 16 visually-normal, age/gender-match subjects.