Comparability and precision of pupil measurement of an infrared-based pupillometer, an optical coherence tomograph and a multifunctional aberrometer/coherent interferometer/tomograph

Comparability and precision of pupil measurement of an infrared-based pupillometer, an optical coherence tomograph and a multifunctional aberrometer/coherent interferometer/tomograph - Pupillometry Study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00037408

Enrollment

Registered

2025-07-11

Start date

2025-06-30

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

Healthy eyes

Interventions

Group 1: Patients with healthy eyes. The pupil size is measured with various devices under different lighting conditions. The devices are: an infrared-based pupillometer, an optical coherence tomograp

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Healthy eyes of adult subjects are included who have understood and signed the study information. A physical and mental subjects' ability to cooperate is required in order to achieve the highest possible.

Exclusion criteria

Exclusion criteria: Subjects with previous eye surgery, regular eye medication or other ocular pathologies (such as optic neuropathies, optic atrophies, traumatic mydriasis, iris sphincter defects and pupil irregularities) are excluded.

Design outcomes

Primary

Measure	Time frame
Comparability of pupil size measured with different measuring devices under different lighting conditions	—

Secondary

Measure	Time frame
Repeatability of pupil size measured with different measuring devices under different lighting conditions	—

Countries

Germany

Contacts

Public ContactThomas Kohnen

Universitätsklinikum Klinik für Augenheilkunde

augen.studien@unimedizin-ffm.de+49 69 6301 83493

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Aug 10, 2026