Case presentation A 4-year-old boy was presented to the ophthalmologist with a year-old history of enlarging white deposits in both eyes. The patient also complained about decreasing night vision in the last few months. On physical examination, the patient appeared pale with hypopigmented hair. The boy was malnourished, weighing 10.5 kg (Z-score less than -3), and had a height of 92 cm (Z-score less than -2.8).
Eye examination showed that the conjunctivae of both eyes were dry and wrinkled with foamy, cream-colored deposits near the outer corners. What's the underlying cause of the eye condition in this patient? Sjogren's syndrome Pyridoxine deficiency Vitamin A deficiency Type 1 diabetes (Answer is posted in the comment section below!) Source: NEJM This case challenge is from the Editorial Team of Docplexus and is meant for educational purposes only.
