Comparison of PRESBYOND Laser Blended Vision and Conventional Monovision LASIK in Individuals With Presbyopia: A Randomized Clinical Study

Recruiting now · Not applicable

Conditions studied: Presbyopia, Refractive Error

In brief

The goal of this clinical trial is to learn if laser blended vision (LBV) works better than traditional monovision LASIK to correct presbyopia in adults aged 40 to 55 years. Presbyopia is an age-related condition that makes it hard to see things up close. The study will also evaluate the safety of both procedures. The main questions it aims to answer are: Does LBV improve distance, intermediate, and near vision at the same time after surgery? Is LBV as safe as traditional monovision LASIK? Researchers will compare laser blended vision to traditional monovision LASIK to see if LBV provides better overall vision after surgery. Participants will: Be randomly assigned to receive either laser blended vision or traditional monovision LASIK Have standard eye examinations before surgery Undergo LASIK surgery using the assigned method Return for follow-up visits at 1 week, 1 month, 3 months, and 6 months after surgery Complete vision tests and questionnaires about visual quality and satisfaction

Key facts

Study ID

NCT07512089

Run by

Zhongshan Ophthalmic Center, Sun Yat-sen University

People needed

100

Starts

2026-05-12

Expected to finish

2028-06-30

Last updated by the study team

2026-07-07

Who can join

Age: 40 and older, up to 55. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Adults aged 40 to 55 years with presbyopia
• Suitable candidates for LASIK surgery based on clinical evaluation
• Stable refractive status for at least 1 year
• Best corrected distance visual acuity within normal range
• Willing and able to provide written informed consent
• Willing to comply with study visits and follow-up

You may not qualify if…

• Previous ocular surgery
• Corneal disease or abnormal corneal condition that may affect safety
• Significant ocular disease affecting visual function
• Severe dry eye or other ocular surface disorders
• Systemic disease that may affect study participation
• Inability to tolerate monovision or anisometropia
• Any condition that the investigator considers unsuitable for the study

Where it is running

• Zhongshan Ophthalmic Center — Guangzhou, Guangdong, China (enrolling)

Full record on ClinicalTrials.gov

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