An interventional study of marking in Astigmatism, sponsored by Tianjin Eye Hospital. Recruiting at 1 site in China. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-11-19.
Sponsored by Tianjin Eye Hospital · Not applicable, Interventional, and Treatment
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.
420 studies on the registry are indexed under Astigmatism; 54 are open to participants now.
This study's planned enrollment of 100 is above the median of 56 across 328 interventional studies indexed under Astigmatism.
Browse Astigmatism studies →Tianjin Eye Hospital is the lead sponsor of 52 studies on the registry; 17 are open to participants now.
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Exclusion Criteria:
Procedure: marking
axis marking
refraction
Time frame: 3 months
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Tianjin Eye Hospital