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Houston Myopia Control Study: a randomized clinical trial. Part I. Background and design of the study
American Journal of Optometry and Physiological Optics
|September 1, 1985
Summary
This study evaluated bifocal lenses for myopia control in children. Results will determine if +1.00 D or +2.00 D add bifocals are more effective than single vision lenses for slowing myopia progression.
Area of Science:
- Ophthalmology
- Pediatric Optometry
- Clinical Trials
Background:
- Myopia, or nearsightedness, is a growing public health concern in children.
- Effective myopia control strategies are needed to prevent high myopia and associated risks.
Purpose of the Study:
- To investigate the efficacy of different strengths of bifocal lenses in controlling myopia progression in children.
- To compare the effectiveness of +1.00 D and +2.00 D add bifocal lenses against standard single vision lenses.
Main Methods:
- A 3-year randomized clinical trial involving 213 myopic children.
- Participants were assigned to single vision, +1.00 D add bifocal, or +2.00 D add bifocal treatment groups.
- Blinded evaluation team assessed subjects yearly; patient care team managed prescriptions and follow-ups.
Main Results:
- Data collection completed for evaluation and patient care teams.
- Further reports will detail the study's findings on myopia progression rates for each treatment group.
Conclusions:
- The Houston Myopia Control Study provides a robust design for evaluating myopia control interventions.
- Results from this trial will inform clinical practice regarding the use of bifocal lenses for pediatric myopia management.