Study on safety and efficacy of pinhole contact lens to correct presbyopia with both eyes wearing

Not Applicable

• Conditions: myopia or myopic astigmatism with presbyopia corrected good visual acuity

• Registration Number: JPRN-UMIN000032079
• Lead Sponsor: RYOGOKU EYE CLINIC Hospital Director

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2018-04-05
• Study Completion: 2018-07-31
• Last Update Posted: 17 October 2023

Recruitment & Eligibility

• Status: Complete: follow-up complete
• Sex: All
• Target Recruitment: 10

Inclusion Criteria

Not provided

Exclusion Criteria

1) multifocal CLs users 2) toric CLs users 3) usershard CLs users 4) Subjects who cannot wear a contact lens 5) Corneal endothelial cell density < 2000/mm2 6) Corneal diameter < 10mm 7) Subjects who have ocular diseases affecting visual function except for refractive error and presbyoia 8) A pregnant woman, a woman nursing or woman with the plan of the pregnancy 9)The person who connot follow the instructions of the ophthalmologist 10) Extremely nervous persons 11) Person who are not able to undergo examinations 12) In addition, the person who are judged unsuitable to use pinhole contactlens by ophthalmologists

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Distance and near visual acuities with or without the pinhole contact lens(both eyes).