Mutations in PCDH15 cause Usher 1F, a recessive syndrome characterized by profound congenital deafness and absence of vestibular function, and progressive blindness beginning in the second decade. Because patients who lack hearing and balance rely on vision for communication and mobility, the late…

The vitreous humor is a fragile, transparent tissue between the lens and the retina of the eye that maintains the shape of the eye, acts as a shock absorber, and enables nutrient diffusion to ocular tissues. The vitreous also plays a key role in oxygen homeostasis. Over time, the vitreous degrades…