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Meta analysis of the long-term comparative studies of PRK and LASIK

Meta analysis of the long-term comparative studies of PRK and LASIK - Meta analysis of the long-term comparative studies of PRK and LASIK

Status
Active, not recruiting
Phases
Unknown
Study type
Unknown
Source
JPRN
Registry ID
JPRN-UMIN000013569
Enrollment
Unknown
Registered
2014-03-30
Start date
2014-03-30
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

Myopia

Interventions

None listed

Sponsors

University of Tokyo
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Randomized controlled trials and non-randomized controlled trials(including prospective and retrospective cohort studies) All degree of myopia Reports comparing LASIK with PRK Reports of more than 2 years follow-up periods Language: English only

Exclusion criteria

Exclusion criteria: Exclude reports about childrens Exclude reports if the data is treated as combined with other kinds of surgeries and it is impossible to extract the subject data of the purpose

Design outcomes

Primary

MeasureTime frame
UCVA 20/20 or better Within 0.5D of target refraction Manifest Refractive Shperical Equivalent Lost two or more lines of BCVA—

Countries

Japan,North America

Contacts

Public ContactTakashi Miyai

Schepens Eye Research Institute Department of Ophthalmology

miyataka381@gmail.com03-3815-5411

Outcome results

None listed

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