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Effect of anti-histamine eye drops on pupil diameter

Effect of anti-histamine eye drops on pupil diameter - Effect of anti-histamine eye drops on pupil diameter

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000040344
Enrollment
70
Registered
2020-05-09
Start date
2020-07-09
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Patients who are prescribed epinastine hydrochloride eye-drops and have a funds examination.

Interventions

None listed

Sponsors

Kitasato University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: The patient who does not meet exclusion criteria.

Exclusion criteria

Exclusion criteria: 1.Iris atrophy, macular disease, corneal opacity, shallow anterior chamber or cataract with Emery-Little classification 3 or higher. 2. Existing diagnosis of cardiovascular disease. 3. A history of allergy to mydriatic drugs 4. Those who are being treated with eye drops due to glaucoma

Design outcomes

Primary

MeasureTime frame
Comparison among the pupil diameter of original pupil, after instillation of Tropicamide Phenylephrine hydrochloride (TPH), and after instillation of TPH and Epinastine hydrochloride eye-drops.

Countries

Japan

Contacts

Public ContactKazunori Hirasawa

Kitasato University Department of Ophthalmology, School of Medicine

hirasawa@kitasato-u.ac.jp0427788464

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026