Can you spot the cause of these dry eyes?
Ranjit, a four-year-old boy, has been complaining of dry eyes and poor night vision for the past six months.
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 Paul Muthiah is a GP on the Central Coast , NSW, and medical co-editor at Australian Doctor.