Most conditions covered here stay contained to the eye. Usher Syndrome is the exception, pairing progressive retinal decline with sensorineural hearing loss and, in certain forms, inner-ear balance difficulties as well — a three-way combination that sets it apart from almost everything else on this list. It’s grouped into three recognised types, each defined by how severe the hearing loss is and by roughly when retinal symptoms typically start.
Because Usher Syndrome spans two unconnected sensory systems, we structure the evaluation for patients travelling from Rwanda around hearing, balance, and vision together — rather than examining the retina in isolation and leaving the rest of the picture out.
The genes behind Usher Syndrome are needed both by the hair cells of the inner ear and by the retina’s photoreceptors — two structures that seem unrelated on the surface but share a surprising amount of cellular machinery underneath. It’s inherited in an autosomal recessive pattern, meaning both parents are typically unaffected carriers of a single altered copy each.

Associate Professor, Vitreo-Retina Surgeon. 10+ Years Experience

Senior Consultant Ophthalmologist & Eye Surgeon· 26+ yrs experience

Consultant Ophthalmologist & Eye Surgeon, MD, DO .16+ Years Experience
Retinal care follows the same principles used for other rod-cone dystrophies, with stem cell therapy weighed for patients whose results support it. Hearing care generally sits under a different specialty altogether — hearing aids, or evaluation for a cochlear implant where appropriate — so our retinal plan is built to work alongside whatever audiology support a patient already has in place in Rwanda, rather than replace it.
Our focus stays specifically on the retinal side of Usher Syndrome. Hearing care, including any cochlear implant evaluation, belongs to a separate specialty, and we shape our recommendations to complement whatever audiology support you already have or are arranging.
Yes, particularly if Type I seems likely, since retinal symptoms in that type can begin appearing from later childhood onward. A baseline eye check early on makes any future change much easier to detect.
No — congenital hearing loss has many possible causes, and Usher Syndrome accounts for only some of them. A retinal ERG combined with genetic testing gives the most reliable confirmation either way.
Type is determined by the severity of hearing loss, whether balance is affected, and the age retinal symptoms began — usually confirmed with genetic testing. It mainly shapes how we discuss prognosis; the retinal evaluation itself stays broadly similar regardless of which of the three types is involved.
