Review Question - QID 212784

A 45-year-old woman presents to the ophthalmologist with the complaint of redness and photophobia in her right eye for the past 2 days. She says that she noticed these changes after her young nephew accidentally brushed the end of a hockey stick directly into her eye when they were playing in the backyard, although she was surprised to feel an absence of significant eye pain during the incident or afterwards. She also notes that vision in her right eye has become more blurry in the past year. On slit lamp examination, the ophthalmologist finds a large corneal abrasion with fluorescein staining (Figure A), as well as evidence of corneal scarring from previous eye trauma. The patient is found to have an absent corneal reflex in her right eye. Which of the following conditions would be most likely be present in her past medical history?