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Compares treatment options for Myopia
Official title Comparison of Low- Versus High-Level Angle Kappa Compensation Strategies in SMILE Using the VisuMax 800: A Randomized Clinical Trial
ClinicalTrials.gov ID: NCT07512102
What this study is testing
- What it's testing
- The goal of this clinical trial is to compare two intraoperative kappa-angle compensation strategies during small incision lenticule extraction (SMILE) using the VisuMax 800 platform in patients with relatively large kappa-angle offsets. Angle kappa represents the difference between the visual axis and the pupil center.
- Which group you join is decided by chance.
A plain-language read of the study's public ClinicalTrials.gov listing. The study team confirms the details.
Who can take part
Ages 18 to 40
You may be able to join if
- Age range: 18 - 40 years old. Patients with stable refractive status for \>= 1 year, having myopia or myopic astigmatism, with refractive power...
- Normal corneal morphology and corneal thickness meeting the surgical requirements.
- Best corrected visual acuity (CDVA) before surgery \>= 1.0.
- The kappa angle-related offset coordinates (x, y) obtained before surgery, with the absolute value of either \|x\| or \|yl\| of any eye \>= 0.20mm.
- Voluntary to undergo SMILE surgery on the VISUMAX800 platform, understanding the random grouping scheme and signing the informed consent form.
You likely can't join if
- History of prior ocular surgery, significant ocular trauma, or presence of corneal or ocular diseases that may affect the safety of refractive...
- Severe systemic diseases that may affect ocular healing or surgical safety.
- Females who are pregnant or lactating.
- Inability to cooperate as required to complete the procedure or follow-up visits.
The study team makes the final eligibility decision.
Where it's taking place
- Guangzhou, Guangdong, China
Compensation & support
Compensation mentioned.
ClinicalTrials.gov doesn't provide a reliable structured field for payment or travel support - confirm details with the study team.
Questions & answers
Do participants get paid in this trial?
This study's listing includes signals that participants may be compensated or receive a stipend. Amounts vary and are set by the study team - confirm the details with them.
Is it free to join, and do I need insurance?
Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part - confirm specifics with the study team.
How long does this study last?
The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.
Who can join this trial?
This study is enrolling all sexes, 18 years to 40 years. The study team makes the final eligibility decision.
Where is this trial taking place?
Study sites include Guangzhou, Guangdong, China. Enter your location above to see the nearest site and check your eligibility.
Explore other conditions
BridgeMD is an information and trial-matching tool - not medical advice, and not the study sponsor. Details come from ClinicalTrials.gov; the study team decides eligibility.