Bietti crystalline dystrophy: A genetic eye disease that leads to progressive night blindness and visual field constriction and is characterized by the formation of crystals in the cornea (the clear covering of the eye), yellow shiny deposits on the retina [rxlist.com]

This tends to lead to progressive night blindness and visual field constriction. Bietti's crystalline dystrophy has an autosomal recessive pattern of inheritance. [wikidoc.org]

This tends to lead to progressive night blindness and visual field constriction. BCD is a rare disease and appears to be more common in people with Asian ancestry. [nei.nih.gov]

As the disease progresses, symptoms of BCD resemble RP, including reduced visual acuity, nyctalopia, floaters, photopsia, color vision impairment, and visual field constriction. [journals.lww.com]

Then, he had a generalized disturbance of the retinal pigment epithelium by fluorescein angiography, normal color vision, normal electroretinogram scotopic responses, decreased photopic amplitudes, subnormal dark adaptation, abnormal electrooculogram, [ncbi.nlm.nih.gov]

We hypothesize that the chronic irritation of Bruch’s membrane by the crystals may have resulted in CNV in these patients; the contributing gene for this is yet to be identified. [molvis.org]

[…] deletion Osteogenesis imperfecta type VI Brachydactyly preaxial with hallux varus and thumb abduction Floating-Harbor syndrome Limb deficiencies distal with micrognathia Kohlschutter Tonz syndrome Pontocerebellar hypoplasia type 2 Idiopathic CD4 positive T-lymphocytopenia [checkrare.com]

BCD-associated ocular crystals therefore remains unclear. 54 Recently, a Cyp4v3 (the murine ortholog to human CYP4V2 ) knockout mouse was created. 56 The Cyp4v3 / mouse recapitulates the characteristic features of corneoretinal crystal accumulation and systemic dyslipidemia [journals.lww.com]

Histopathological studies disclosed evidence of advanced panchoroidal atrophy characterised by a marked loss of the RPE and choriocapillaris and mild retinal gliosis. [bjo.bmj.com]