Glaucoma
Conditions
Brief summary
The Gonioscope GS-1 is an ophthalmic camera with gonioscopic prism that is intended to capture, display and store images of the anterior chamber angle and its peripheral part. This study evaluates the efficiency of Gonioscope GS-1 in glaucoma patients.With the captured images, the glaucoma diagnosis and post-operative observation are enabled.
Interventions
OTHERNIDEK Gonioscope GS-1
To determine inter-observer repeatability when using this device, two observers will examine each image obtained from NIDEK Gonioscope GS-1 and separately determine the iridocorneal angle. Inter-observer repeatability will be tested using Pearson correlation.
OTHERStandard Digital Gonioscopic Images
To determine inter-observer repeatability when using this device, two observers will examine each image obtained from NIDEK Gonioscope GS-1 and separately determine the iridocorneal angle. Inter-observer repeatability will be tested using Pearson correlation.
Sponsors
NYU Langone Health
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No
Inclusion criteria
* Diagnosed with glaucoma or glaucoma suspect Glaucoma Suspect * Glaucomatous optic neuropathy as described in the glaucoma patients below * AND/OR ocular hypertension (IOP \> 21 mm Hg) * Normal visual field Glaucoma Patients * Clinical characteristics of glaucoma: ONH abnormalities: global rim thinning, rim notch, or disc hemorrhage; RNFL defect * Typical glaucomatous field loss in reliable VF, reproducible glaucoma hemifield tests labeled outside normal limits on at least two consecutive tests. * Both eyes will be included, except in cases where only one eye meets study criteria
Exclusion criteria
* Corneal opacities (scars, edema, etc.) * Pregnant or planning to become pregnant * Inability to fixate gaze
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Inter-Observer Repeatability for NIDEK Gonioscope GS-1 | 1 Day | To determine reliability, two observers will examine images from NIDEK Gonioscopes GS-1. Repeatability will mean observations of both observers will coincide. |
| Inter-Observer Repeatability for Standard Digital Gonioscopic images | 1 Day | To determine reliability, two observers will examine images from NIDEK Gonioscopes GS-1. Repeatability will mean observations of both observers will coincide. |
Countries
United States
Outcome results
None listed