Reduced blink reflex occurs in all except
Clinical Significance Peripherally, damage to either the trigeminal nerve (V) or facial nerve (VII) nerve will disrupt the corneal blink circuit. ... Facial nerve damage causes ipsilateral paresis of the muscles of facial expression. ... Central nervous system dysfunction will cause deficits in the blink reflex bilaterally The corneal reflex may be slowed in various disorders affecting the trigeminal nerve, ganglion, or brain stem nuclei; these include posterior fossa and cerebellopontine angle tumors, Parkinsonism, progressive Supra nuclear palsy multiples sclerosis, , and brain stem strokes (especially Wallenberg's syndrome) Ref Harrison20th edition pg 2756
Alcohol intoxication
Parkinsonism
Progressive supranuclear palsy
Myasthenia gravis
C.N.S