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NCT Number: NCT07605221

Nomogram for Astigmatism Correction of KLEx

The goal of this clinical trial is to learn if nomogram could promote treatment outcomes in astigmatism correction. The main question it aims to answer is:

does the nomogram could promote treatment outcomes in astigmatism correction? If there is a comparison group: Researchers will compare non-nomogram adopted to see if the outcome acceptable.

Participants will ask to complete 3-month follow-up of manifest refraction and visual acuity test.

Recruiting

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Key information

Conditions

Astigmatism Eye Diseases Refractive Errors

Age range

18 year–45 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Tianjin Eye Hospital

Tianjin, Tianjin Municipality, 300000, China

Location status: Recruiting

Location contact

Yan Wang

CONTACT

[email protected]

022-27305083

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • age ≥18 years; preoperative sphere -0.50 D to -10.00 D; preoperative cylinder -1.50 D to -5.00 D; stable refraction (±0.50 D) for 1 year; normal corneal topography; central corneal thickness >500 μm or predicted residual stromal bed >280 μm; intraocular pressure <21 mmHg

Exclusion criteria

  • ocular or systematic disease

Treatment and study plan

nomogram

Procedure

nomogram was added to nomogram group

Primary outcomes

  1. residual astigmstism

    Time frame: 3 months

Secondary outcomes

  1. visual acuity

    Time frame: 3 months

Study contacts

Contact information is provided by the study sponsor or research team.

Jiamei Zhang

CONTACT

[email protected]

022-27305083

Sponsors and collaborators

Lead sponsor

Tianjin Eye Hospital

Other

Registry information

Official study title

Nomogram Optimization for Astigmatism Precision Correction of Corneal Refractive Correction

Important dates

Study start
2025
Primary completion
2026
Study completion
2027
First posted
May 22, 2026
Registry last updated
May 22, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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