29th September 2020

A 26-year-old woman presents with a four month history of back pain

A 26-year-old woman presents with a four month history of back pain, associated with a 5 day history of ocular discomfort and photophobia. Visual acuity is initially normal on formal testing, however has deteriorated upon admission. 

For the description above, please match the SINGLE most likely clinical manifestation of Ankylosing Spondylitis. Select ONE option from the list above.