Woman presents with blurry vision, floaters in left eye

A 46-year-old woman with hypothyroidism and prior substance use disorder presented to the emergency department with a 1-week history of left eye blurry vision and floaters.Four weeks before presentation, she developed a pruritic rash that began on her thighs and spread to involve the trunk and scalp before further extending distally (Figure 1). Around the time of the rash’s onset, she