Glaucoma, Retinal Disease
Conditions
Brief summary
This study is a prospective comparative, randomized, single center study to assess agreement and precision of the Optos P200TE in comparison to the predicate device in normal subjects, subjects with glaucoma, and subjects with retinal disease.
Interventions
DEVICEOptos P200TE
The P200TE Ophthalmoscope provides widefield Scanning Laser Ophthalmoscope (SLO) fundus imaging and Optical Coherence Tomography (OCT) imaging in one device.
DEVICEPredicate Device
The predicate device is an optical coherence tomography system intended for in vivo imaging, axial cross-sectional, three-dimensional imaging and measurement of anterior and posterior ocular structures.
Sponsors
Optos, PLC
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
22 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
for Normal Group 1. Subjects 22 years of age or older on the date of informed consent 2. Subjects able to understand the written informed consent and willing to participate as evidenced by signing the informed consent 3. Subjects with normal eye examinations in both eyes on the date of the study visit as observed with a 90 diopter lens 4. BCVA 20/40 or better (each eye) on the date of the study visit
Exclusion criteria
for Normal Group 5. Subjects unable to tolerate ophthalmic imaging 6. Subjects with ocular media not sufficiently clear to obtain acceptable OCT images in either eye 7. Presence of any ocular pathology except for cataract in either eye 8. History of leukemia, dementia or multiple sclerosis Inclusion Criteria for Glaucoma Group 9. Subjects 22 years of age or older on the date of informed consent 10. Subjects able to understand the written informed consent and willing to participate as evidenced by signing the informed consent 11. BCVA 20/40 or better in the study eye 12. History of Visual field defects within the previous six (6) months from the study visit or measured the day of the study visit consistent with glaucomatous optic nerve damage with at least one of the following two findings: 1. On pattern deviation (PD), there exists a cluster of 3 or more points in an expected location of the visual field depressed below the 5% level, at least 1 of which is depressed below the 1% level; 2. Glaucoma hemi-field test outside normal limits. 13. Glaucomatous optic nerve damage as evidenced by any of the following optic disc or retinal nerve fiber layer structural abnormalities: 1. Diffuse thinning, focal narrowing, or notching of the neuroretinal rim, especially at the inferior or superior poles with or without disc hemorrhage; 2. Optic disc neural rim asymmetry of the two eyes consistent with loss of neural tissue
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Limit of Agreement (LOA) between the Optos P200TE and predicate device measurements of full retinal thickness (μm). | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
| Limit of Agreement (LOA) between the Optos P200TE and predicate device measurements of retinal nerve fiber layer thickness (μm). | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
| Limit of Agreement (LOA) between the Optos P200TE and predicate device measurements of ganglion cell complex thickness (μm). | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
| Limit of Agreement (LOA) between the Optos P200TE and predicate device measurements of optic disc (area, volume, cup-to-disc ratio). | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
| Precision between the Optos P200TE and predicate device measurements of full retinal thickness. | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
| Precision between the Optos P200TE and predicate device measurements of retinal nerve fiber layer thickness. | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
| Precision between the Optos P200TE and predicate device measurements of ganglion cell complex thickness. | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
| Precision between the Optos P200TE and predicate device measurements of optic disc (area, volume, cup-to-disc ratio). | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
| Precision of the P200TE for the super pixel grid measurements of the full retinal thickness. | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
| Precision of the P200TE for the super pixel grid measurements of the RNFL thickness. | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
| Precision of the P200TE for the super pixel grid measurements of GCC thickness. | At the end of Visit 1 or optional Visit 2 (each visit is 1 day) |
Countries
United States
Outcome results
None listed