Transepithelial Photorefractive Keratectomy to Treat Mild Myopia

Evidence database / Studies / alasmari-2021-transprk-mild-myopia-amaris-750s

42enrolled patients*

84enrolled eyes*

1structured arms

180maximum 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

Single-step TransPRK

TransPRKAMARIS 750S

Population

Patients: 42
Eyes: 84
Bilateral treatment: Yes
Age range: Not reported
Sphere range: Not reported
Cylinder range: Not reported
Spherical equivalent: -3 to -0.75 D
Corneal thickness: Not reported

Eligibility definition

Inclusion
Mild myopia with or without astigmatism and preoperative spherical equivalent from -0.75 to -3.00 D.

Exclusion
Not structured

Reported outcomes by follow-up

Outcome	Follow-up	Follow-up sample	Result	Reported fraction	Provenance
Transient postoperative corneal haze complications	6 months	84 eyes	6.0%	5 / 84 eyes	VERIFIED Source · Abstract
UDVA 20/20 or better efficacy	6 months	84 eyes	100.0%	denominator: 42 patients	VERIFIED Source · Abstract

Complications

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

Study design

Prospective case series of bilateral single-step TransPRK using the SCHWIND AMARIS 750S for mild myopia with or without astigmatism.

Country: Saudi Arabia
Publication-reported places: King Abdulaziz University Hospital, Riyadh
Multicenter: No
Prospective: Yes
Randomized: No
Source type: PROSPECTIVE COHORT
Regulator: Not reported

Place metadata may refer to a treatment site, institution or author affiliation. Confirm its role in the linked publication.

Limitations and notes

The abstract reports that all patients achieved postoperative UDVA of 20/20 or better and that five eyes developed transient haze. The 20/20 numerator was not inferred because the source phrases that result at patient level while the cohort is reported in eyes.

Missing fields are not interpreted as negative findings. Arm counts may not be additive in all study designs.

Study evidence level
A simple, non-GRADE hierarchy based on design: randomized and large regulatory trials are high; prospective cohorts moderate; retrospective observational studies low. Manual review can override this label.