13th February 2025

A 34-year-old male notices he is gradually developing worsening vertical binocular diplopia.

A 34-year-old male notices he is gradually developing worsening vertical binocular diplopia. He is otherwise asymptomatic, with no history of trauma and no significant past medical history. On assessment by A&E horizontal eye movements and pupils are normal, although there is a slight hypertropia of the right eye.

What is the most likely diagnosis?

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