Clinical Research Directory
Browse clinical research sites, groups, and studies.
Efficacy of Multi-Type Photolithography Flat Microstructure Lenses for Childhood Myopia Control
Sponsor: Shanghai Eye Disease Prevention and Treatment Center
Summary
The goal of this clinical trial is to learn if photolithographic flat microstructure lenses work to prevent myopia in children. It will also learn about the safety of different designs of photolithographic flat microstructure lenses. The main questions it aims to answer are: Are photolithography flat microstructure lenses effective and safe in preventing myopia in children? Does the depth of tinted lenses affect visual quality? Researchers will compare photolithography flat microstructure lenses to a spectacle lenses with aspherical lenslets to see if photolithography flat microstructure lenses works to prevent myopia in children. Participants will: Wear photolithography flat microstructure lenses or Spectacle Lenses with Aspherical Lenslets more than 8H per day for 1 year. Visit the clinic once every 3 months for checkups and tests.
Official title: Comparative Efficacy and Safety of Multi-Type Photolithography Flat Microstructure Spectacle Lenses Versus Spectacle Lenses With Aspherical Lenslets for Myopia Control in Chinese Children: A 12-Month Randomized Controlled Trial
Key Details
Gender
All
Age Range
6 Years - 8 Years
Study Type
INTERVENTIONAL
Enrollment
255
Start Date
2026-04-15
Completion Date
2027-12-31
Last Updated
2026-04-17
Healthy Volunteers
No
Conditions
Interventions
wearing photolithography plano microstructure lenses with multi-point defocus design, non-fading optical property
wearing photolithography plano microstructure lenses （PPML） with a multi-point defocus design, manufactured by Nuo Tong, which feature a non-fading optical property for more than 8 hours a day.
wearing Plano microstructure lenses featuring multi-point defocus design with aspherical lenslets (Essilor Stellest)
wearing plano microstructure lenses featuring multi-point defocus design with aspherical lenslets (Essilor Stellest) for more than 8 hours.
wearing Photolithography Plano Microstructure Lenses incorporates a multi-point defocus optical architecture , featuring photochromic properties with a light transmittance of 55% post-activation
Wearing Photolithography Plano Microstructure Lenses incorporates a multi-point defocus optical architecture manufactured by Nuo Tong, featuring photochromic properties with a light transmittance of 55% post-activation for more than 8 hours.
wearing Photolithography Plano Microstructure Lenses incorporates a multi-point defocus optical architecture , featuring photochromic properties with a light transmittance of 35% post-activation
Wearing Photolithography Plano Microstructure Lenses incorporates a multi-point defocus optical architecture manufactured by Nuo Tong, featuring photochromic properties with a light transmittance of 35% post-activation for more than 8 hours.
wearing Photolithography Plano Microstructure Lenses designed to reduce contrast sensitivity and featuring a non-fading optical property
wearing Photolithography Plano Microstructure Lenses designed by Nuo Tong to reduce contrast sensitivity and featuring a non-fading optical property for more than 8 hours
Locations (1)
Shanghai Eye Disease Prevention and treatment Center
Shanghai, China