[…] in speech (slow speech) and a supranuclear gaze palsy and difficulties in swallowing.
[orpha.net]
Speech gets slurred and inaudible. Practice with a speech therapist. 4.
[africaparkinsons.org]
[…] develop other eye abnormalities (dry and red eyes, blurred vision, spontaneous involuntary eyelid closure, photophobia), a dysexecutive cognitive syndrome with impulsivity, problems
[orpha.net]