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TopQ Cut-off Score Validation Study for 3D OCT-1 Maestro

TopQ Cut-off Score Validation Study for 3D OCT-1 Maestro

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02447133
Enrollment
12
Registered
2015-05-18
Start date
2015-05-31
Completion date
2015-05-31
Last updated
2022-06-29

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

Conditions

Subjects Presenting With Normal Eyes

Keywords

no known ocular pathology

Brief summary

The objective of this study is to validate the TopQ cutoff scores, which have been previously determined.

Detailed description

Scans with a TopQ score below the optimum cut-off should be considered to be poor or unacceptable quality, and scans with a TopQ score above the cut-off should be considered good or acceptable quality. The study will evaluate the predetermined cut-off values by investigating measurement variability of scans.

Interventions

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

1. Participants must be at least 18 years of age 2. They must be able to complete all testing (all OCT scans) 3. They must volunteer to be in the study and sign the consent form

Exclusion criteria

1. Subject with history of ocular disease or ocular pathology 2. TopQ score from baseline OCT scan (i.e., without any ND filters) is below the cut-off value.

Design outcomes

Primary

MeasureTime frameDescription
TopQ Cut Off1 hourTo validate the values of the predetermined TopQ score by showing the variability above and below the TopQ score of 25 for 12x9 Wide, 28 for 6x6 Macula, and 30 for 6x6 Disc scans.

Countries

United States

Participant flow

Participants by arm

ArmCount
Subjects Presenting With Normal Eyes
Subjects with no known ocular diseases will be scanned on the Maestro device 3D OCT-1 Maestro: OCT Machine used for diagnostic purposes
12
Total12

Baseline characteristics

CharacteristicSubjects Presenting With Normal Eyes
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
11 Participants
Age, Continuous43.17 years
STANDARD_DEVIATION 13.48
Region of Enrollment
United States
12 participants
Sex: Female, Male
Female
7 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
0 / 12
serious
Total, serious adverse events
0 / 12

Outcome results

Primary

TopQ Cut Off

To validate the values of the predetermined TopQ score by showing the variability above and below the TopQ score of 25 for 12x9 Wide, 28 for 6x6 Macula, and 30 for 6x6 Disc scans.

Time frame: 1 hour

Population: use of 12 subjects for 3 different scan patterns

ArmMeasureGroupValue (NUMBER)
12x9 Wide ScanTopQ Cut OffStandard Deviation Above Threshold2.94 microns
12x9 Wide ScanTopQ Cut OffStandard Deviation Below Threshold17.54 microns
6x6 Macula ScanTopQ Cut OffStandard Deviation Above Threshold1.5 microns
6x6 Macula ScanTopQ Cut OffStandard Deviation Below Threshold13.67 microns
6x6 Disc ScanTopQ Cut OffStandard Deviation Above Threshold2.14 microns
6x6 Disc ScanTopQ Cut OffStandard Deviation Below Threshold13.67 microns

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