Prevalence and Characteristics of Ocular Manifestation of Patients with the Nevus of Ota: A Laser Flare-Cell Photometric Examination

Prevalence and Characteristics of Ocular Manifestation of Patients with the Nevus of Ota: A Laser Flare&#45;Cell Photometric Examination

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20210223004

Enrollment

217

Registered

2021-02-23

Start date

2021-03-01

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

Glaucoma or ocular hypertension in patients with the Nevus of Ota Nevus of Ota Ocular melanocytosis Glaucoma Ocular hypertension

Interventions

Patients with the Nevus of Ota who were diagnosed with glaucoma or ocular hypertension, comfired by ophthalmologist,Patients with the Nevus of Ota who were not diagnosed with glaucoma or ocular hyper

Diagnostic,Diagnostic

Nevus of Ota patients with glaucoma or ocular hypertension,Nevus of Ota patients without glaucoma or ocular hypertension

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Diagnosed with the Nevus of Ota

Exclusion criteria

Exclusion criteria: 1. Unable to perform laser flare-cell photometry testing, 2. Have contraindications of Dorzolamide and Timolol (if indicated)

Design outcomes

Primary

Measure	Time frame
Glaucoma or ocular hypertension at every visit IOP, Visual field, and optic disc examination	—

Secondary

Measure	Time frame
Flare at first visit Laser flare-cell photometry,Pigment (in anterior chamber) at first visit Laser flare-cell photometry (using cell count)	—

Countries

Thailand

Contacts

Public ContactAssist. Prof.Sakaorat Petchyim

Department of Ophthalmology, Faculty of Medicine Siriraj Hospital, Mahidol University

sakaoratpoy012@gmail.com0851007593

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026