What's causing the 'black hole' in this patient's vision?

Sara is a 33-year-old office manager who is fitted in urgently for review of sudden right-sided visual disturbance.

Test your clinical know-how by taking the quiz below. If you select the wrong answer, have another go — you can try as many times as you like!


 

Dr Kate Kelso is a GP and medical editor at Australian Doctor.

References:
  1. BMC Ophthalmol 2020; 14 Sept.
  2. Am J

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