Ocular Evidence
Evidence database / Studies / tananuvat-2021-prk-high-vs-low-myopia
MODERATE evidenceRETROSPECTIVEVerified evidence

Twelve-Month Outcomes of Wavefront-Optimized PRK for High Myopic Correction Compared with Low-to-Moderate Myopia

Tananuvat N, Winaikosol P, Niparugs M, Chaidaroon W, Tangmonkongvoragul C, Ausayakhun S · Clinical Ophthalmology · 2021

Source
—enrolled patients*
69enrolled eyes*
2structured arms
365maximum standardized days follow-up

* Descriptive sum of reported arm counts. “≥” indicates that one or more arm counts were not reported; missing values are not treated as zero.

Study arm

High myopia PRK

PRK

Population

Patients
Not reported
Eyes
29
Bilateral treatment
Not reported
Age range
Not reported
Sphere range
Not reported
Cylinder range
Not reported
Spherical equivalent
Not reported
Corneal thickness
Not reported

Eligibility definition

Inclusion
High myopia of 6.00 D or more.

Exclusion
Not structured

Reported outcomes by follow-up

OutcomeFollow-upFollow-up sampleResultReported fractionProvenance
UDVA 20/20 or better
efficacy
12 months29 eyes89.7%26 / 29 eyes
VERIFIED
Refraction within ±1.00 D
efficacy
12 months29 eyes100.0%29 / 29 eyes
VERIFIED
Lost at least 2 lines of CDVA
safety
12 months29 eyes0%0 / 29 eyes
VERIFIED

Complications

No structured complication observations are available for this arm. This means “not reported in this dataset,” not zero complications.
Study arm

Low-to-moderate myopia PRK

PRK

Population

Patients
Not reported
Eyes
40
Bilateral treatment
Not reported
Age range
Not reported
Sphere range
Not reported
Cylinder range
Not reported
Spherical equivalent
Not reported
Corneal thickness
Not reported

Eligibility definition

Inclusion
Low-to-moderate myopia below 6.00 D.

Exclusion
Not structured

Reported outcomes by follow-up

OutcomeFollow-upFollow-up sampleResultReported fractionProvenance
UDVA 20/20 or better
efficacy
12 months40 eyes97.5%39 / 40 eyes
VERIFIED
Refraction within ±1.00 D
efficacy
12 months40 eyes100.0%40 / 40 eyes
VERIFIED
Lost at least 2 lines of CDVA
safety
12 months40 eyes0%0 / 40 eyes
VERIFIED

Complications

No structured complication observations are available for this arm. This means “not reported in this dataset,” not zero complications.