Any autosomal recessive nonsyndromic deafness in which the cause of the disease is a mutation in the LHFPL5 gene.

Any congenital stationary night blindness in which the cause of the disease is a mutation in the PDE6B gene.

Any autosomal recessive nonsyndromic deafness in which the cause of the disease is a mutation in the LRTOMT gene.

DFNB100 is characterized by prelingual onset of profound sensorineural deafness without vestibular involvement (Yousaf et al., 2018).

Prolonged electroretinal response suppression-2 (PERRS2), also referred to as bradyopsia-2, is an autosomal recessive childhood-onset retinopathy characterized by markedly delayed dark and light adaptation, mild photophobia, difficulty seeing moving objects, moderately reduced visual acuity, normal color vision, normal fundi, and reduced rod and cone responses with prolonged recovery on electrophysiologic assessment (summary by Michaelides et al., 2010). For a discussion of genetic heterogeneity of prolonged electroretinal response suppression (PERRS), see 608415.