UNIT 6 DAY 1 Visual acuity development facts: average 2 week old neonate=visual acuity of 20/800 Optokinetic nystagmus: involves lateral motion of the eyes in response to the transverse passage of series of vertical lines -Commonly used to determine visual acuity What kind of reflex is Optokinetic nystagmus? Visual sccade: The uneven & healting motions of the eyes as they track across edges & differing contrast ( as occurs when a person reads words on a page) -By passing a seris of fine vertical strips past a neonates eyes such a saccade/ Optokinetic nystagmus can be elicited -The nystagmus ouccrs because the eyes reflexively attempts to focus on each strip that moves through the visual field
unit 6
UNIT 6 DAY 1 Visual acuity development facts: average 2 week old neonate=visual acuity of 20/800 Optokinetic nystagmus: involves lateral motion of the eyes in response to the transverse passage of series of vertical lines -Commonly used to determine visual acuity What kind of reflex is Optokinetic nystagmus? Visual sccade: The uneven & healting motions of the eyes as they track across edges & differing contrast ( as occurs when a person reads words on a page) -By passing a seris of fine vertical strips past a neonates eyes such a saccade/ Optokinetic nystagmus can be elicited -The nystagmus ouccrs because the eyes reflexively attempts to focus on each strip that moves through the visual field
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