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Study identifier: NCT06694051 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Application of Phototherapeutic Keratectomy Mode to Mark the Axis of Astigmatism

Condition: Astigmatism  ·  Sponsor: Tianjin Eye Hospital

PhaseNA
Planned participants100
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersYes

About this study

Corneal refractive surgery is an effective way to correct refractive error. Modern corneal refractive surgery for the correction of myopia or hyperopia can achieve or close to the expected goal, but to eliminate astigmatism is always one of the major problems of corneal refractive surgery. The key point in the correction of astigmatism is that as a vector parameter, astigmatism has both magnitude and direction. The angle error may be caused by the rotation of the patient's head position and the involuntary rotation of eyes. Phototherapeutic keratectomy can precisely cut the corneal tissue, and is often used in clinic to remove corneal scars or repair corneal surface morphology. In this study, the excimer laser therapeutic keratectomy mode was used to achieve accurate marking of the axis of astigmatism by setting the treatment laser parameters. With the help of the static cyclotorsion of the eye, the precise treatment of astigmatism could realize.

This description comes directly from the study's public registry record.

Talk to the study team

Wang  ·  +86 022 27313336  ·  jiamei3536@163.com

Always discuss trial participation with your own doctor first.

Locations (1)

Tianjin Eye HospitalTianjin, Tianjin Municipality, ChinaRecruiting

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Source record: clinicaltrials.gov/study/NCT06694051