An 8-year-old male patien...

An 8-year-old male patient presented with low vision. His best-corrected visual acuity (BCVA) was 1.0 with +5.0 dioptre (D) in the right eye and 0.3 with +6.5 D in the left eye. Slit-lamp examination revealed wide iris hypopigmentation in the right vision and total iris hypopigmentation (Waardenburg blue eyes) in the left eye. In addition, anisometropic amblyopia was present in the left eye. As shown in the figure, vitiligo on the arms and body and a white forelock were observed during the systemic examination. In addition, it also revealed neurosensory hearing loss. The patient was diagnosed with Waardenburg syndrome (WS) type 2.