About this trial
To date, randomized trials of low-concentration atropine eyedrops and specially designed spectacle lenses to slow the progression of myopia are limited in number and results are inconsistent in non-Asian children.
Although results of some recent randomized clinical trials outside the US are promising, additional studies in children are needed to test the safety and efficacy of low-concentration atropine and specially designed spectacle lenses as treatments to slow the progression of myopia during the peak years for eye growth.
After a run-in phase to demonstrate adherence with nightly eyedrops (artificial tears) and spectacle correction, children 5 to \<12 years old with myopia of 0.75D to 6.00D cycloplegic spherical equivalent refractive error (SER) and at least 0.75D myopia in both principal meridians of each eye will be randomized in a 2x2 factorial design to treatment with 1) nightly 0.05% atropine or placebo eyedrops, and 2) spectacles with highly aspherical lenslet target (H.A.L.T.) MAX technology or single vision spectacles, and followed every six months for 24 months. Change in axial length over 24 months and change in SER over 24 months are the primary and secondary outcomes, respectively.
All children will return for a visit at 30 months (after 6 months of no treatment other than single-vision spectacles alone between 24 and 30 months).
The study is funded by the National Eye Institute, part of the NIH, and coordinated by the Jaeb Center for Health Research on behalf of PEDIG. Essilor International, a subsidiary of EssilorLuxottica, the manufacturer of Spectacle lenses with H.A.L.T.\* MAX technology, is providing the eyeglasses and financial support for the study. The 0.05% atropine eye drops used in the study are manufactured by Imprimis Rx, a subsidiary of Harrow, Inc.
Eligibility criteria
Qualifiers
Age 5 years to <12 years at time of enrollment. Children within 4 weeks of their 12th birthday are not eligible.
Myopia of 0.75D to 6.00D SER and at least 0.75D in both principal meridians of each eye
Astigmatism <2.50D both eyes
Anisometropia <1.50D SER
Disqualifiers
Current or previous pharmacologic or light therapy used for myopia treatment.
Current or prior contact lens wear more than 7 days in the past 12 months
Current or previous use of bifocals, progressive-addition lenses, multi-focal contact lenses, or focus- or contrast-modifying spectacle lenses.
Current or previous use of orthokeratology, rigid gas permeable, or other contact lenses used to slow myopia progression.
Trial design
Treatments tested in this trial
- Atropine
- Spectacles with HAL
- Placebo Eyedrops