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Employing pattern visual evoked potential for the assessment of visual quality after small incision lenticule extraction

NCT ID NCT07889752

Sponsor: yuhao shao Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
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Paused for now. It may or may not start again.
Ongoing
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The trial has finished. Results may not be published yet.
Stopped early
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Cancelled before anyone took part.

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First seen Oct 22, 2026 · Last updated Oct 23, 2026 · Updated 1 time

Summary

To evaluate the subjective and objective postoperative visual quality employing pattern visual evoked potential (P-VEP) following small incision lenticule extraction (SMILE).

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Study facts

What this study's own registry entry says, in plain language.

Participants

84 people

The number who actually took part.

Started

Oct 2021

Finished

May 2024

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

hey were divided into three age groups: the \< 26 years group, the 26-35 years group, and the \> 35 years group. All participants underwent SMILE surgery performed by an experienced surgeon and received follow-up at 1 week, 1 month, 3 months, and 6 months after SMILE.

Ages

18 to 50 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients with refractive errors who were scheduled to undergo SMILE surgery were selected.Each surgical group was further divided according to age into groups of the \< 26 years group, the 26-35 years group, and the \> 35 years group. There were no significant differences in gender, equivalent spherical diopter (SE), optical zone, and preoperative best corrected visual acuity among the groups. Exclusion Criteria: * The nearsightedness has increased by more than 1D in the past two years. Severe dry eye syndrome, keratoconus, glaucoma, history of eye surgery, severe systemic connective tissue or autoimmune diseases

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Conditions

The condition(s) this trial relates to.

myopia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Myopia

Contacts and locations

Locations

  • Shanghai Tenth People's Hospital

    Shanghai, Shanghai Municipality, 200072, China

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