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Triton Agreement and Precision Study

Topcon DRI OCT Triton Agreement and Precision Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03080714
Enrollment
88
Registered
2017-03-15
Start date
2017-03-13
Completion date
2017-10-30
Last updated
2022-06-08

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

Conditions

Eye Diseases, Healthy Eyes

Keywords

no known ocular pathology, Glaucoma, Retinal Disease

Brief summary

To Compare the agreement and precision between the Topcon DRI OCT Triton and the 3D OCT-1 Maestro with RDB.

Detailed description

The objectives of this study are to compare the agreement and precision between Topcon DRI OCT Triton and 3D OCT-1 Maestro with RDB by measuring the thickness layers.

Interventions

The Topcon DRI OCT Triton (plus) is an OCT machine used for diagnostic purposes

The 3D OCT-1 Maestro is an OCT machine used for diagnostic purposes

Sponsors

Topcon Medical Systems, Inc.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

for Normal Group 1. Subjects 18 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 presenting at the site with normal eyes bilaterally (cataracts are acceptable) 4. IOP ≤ 21 mmHg bilaterally 5. BCVA 20/40 or better bilaterally

Exclusion criteria

for Normal Group 1. Subjects unable to tolerate ophthalmic imaging 2. Subjects with ocular media not sufficiently clear to obtain acceptable OCT images 3. HFA visual field (24-2 Sita Standard, white on white) result unreliable (based on manufacturer's recommendation), defined as fixation losses \> 20% or false positives \> 33%, or false negatives \> 33% 4. Visual field defects consistent with glaucomatous optic nerve damage based on 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. 5. Narrow angle 6. History of leukemia, dementia or multiple sclerosis 7. Concomitant use of hydroxychloroquine and chloroquine Inclusion Criteria for Glaucoma Group 1. Subjects 18 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. BCVA 20/40 or better in the study eye 4. Visual field defects consistent with glaucomatous optic nerve damage based on 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. 5. 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 optic disc rim, especially at the inferior or superior poles with or without disc hemorrhage; 2. Localized abnormalities of the peripapillary retinal nerve fiber layer, especially at the inferior or superior poles; or 3. Optic disc neural rim asymmetry of the two eyes consistent with loss of neural tissue

Design outcomes

Primary

MeasureTime frameDescription
Retinal Thickness1 MinuteThe thickness of the macula layer

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026