Natural history study of Bietti Crystalline dystrophy

Natural history study of Bietti Crystalline dystrophy - Prog Crystalline

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000039657

Enrollment

Registered

2020-04-01

Start date

2020-04-08

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bietti crystalline dystrophy

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Clinical diagnosis of Bietti crystalline dystrophy and biallelic mutations in CYP4V2 gene.

Exclusion criteria

Exclusion criteria: Emery-Little grade >= 3 or subposterior capsular opacity cataract. Any retinal or optic nerve disease other than Bietti crystalline dystrophy

Design outcomes

Primary

Measure	Time frame
Change of mean deviation measured with Humphrey visual field analyzer 10-2 program.	—

Countries

Japan

Contacts

Public ContactAkio Oishi

Nagasaki University Department of Ophthalmology

akio.oishi@nagasaki-u.ac.jp0958197345

Outcome results