Publication Exclusive: Young child referred for difficulty seeing in the dark

A 5-year-old boy was referred to the retina service for progressively worsening night vision that began approximately 6 months before presentation. He denied changes in vision in well-lit settings, eye pain, redness, new floaters, photopsias and headaches. He had no history of trauma.His ocular history was remarkable for mild astigmatism not requiring correction. His medical history was remarkable for asthma, sinusitis and an equivocal work-up thus far for von Willebrand’s disease, which his mother has. He was born full-term without complications during the pregnancy or delivery. There was a family history of night vision difficulties, including his mother and grandmother. His maternal uncle was legally blind.