Study of the presence or absence of presbyopia and the effects of the presence of presbyopia on the quality of everyday life

Study of the presence or absence of presbyopia and the effects of the presence of presbyopia on the quality of everyday life - Study of the actual conditions of presbyopia

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000021587

Enrollment

200

Registered

2016-03-23

Start date

2016-03-01

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

presbyopia

Interventions

Questionnaire

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients age of 20 years old or more. Admitted to ophthalmology clinic. Practice on, it is determined that the required. Patients who are decided that refractive tests and vision tests are necessary for their medical examination and undergo refractive and vision tests. Corrected visual acuity of 0.8 and over

Exclusion criteria

Exclusion criteria: Patients who underwent refractive surgery. Patients who are judged to be inappropriate as a cooperator by various situations such as the patients can't undergo correct tests or reply the questionnaire because of the drops of the cognitive function.

Design outcomes

Primary

Measure	Time frame
Subjective symptoms of presbyopia, subjective sense of well-being, quality of sleep, refraction value, far and near (40cm) vision, binocular far and near (40cm) vision (under daily correction state)	—

Countries

Japan

Contacts

Public ContactKazuno Negishi

Keio university school of medicine Department of ophthalmology

kazunonegishi@keio.jp81333598302

Outcome results

None listed

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