Anterior Chamber Angle Measurement with Swept-source Optical Coherence Tomography - A Pilot Normative Database Collection Study
Not Applicable
- Conditions
- healthy subjects, primary angle-closure suspect, primary angle-closure and primary angle-closure glaucoma
- Registration Number
- JPRN-UMIN000027544
- Lead Sponsor
- The Chinese University of Hong Kong
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete: follow-up complete
- Sex
- All
- Target Recruitment
- 90
Inclusion Criteria
Not provided
Exclusion Criteria
Those who do not meet inclusion criteria from 1 to 4 Secondary glaucoma, eyes after intraocular surgery including laser treatment, eyes with strong cataract, those who can not conduct reliable examination
Study & Design
- Study Type
- Others,meta-analysis etc
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method The scan protocols comprise (1) custom 'Lens biometry' which includes 18 radial B-scans (800 A-scans/B-scan), each with 16 mm in length and 14 mm in depth and (2) 'Anterior segment' which includes 16 radial B-scans (800 A-scans/B-scan), each with 16 mm in length and 11 mm in depth. Eyes will be imaged in the dark (<1.0 lux) for three times with custom 'Lens Biometry' and once with 'Anterior segment'; and then in room light (needs to standardize the room light illumination) for three times with custom 'Lens Biometry' and once with 'Anterior segment'.
- Secondary Outcome Measures
Name Time Method