Progression of myopia is slower in children who wear a special kind of no-line bifocal lenses than those who wear more conventional lenses according to a new study published in Investigative Ophthalmology & Visual Science (IOVS). Researchers from New England College of Optometry, Pennsylvania College of Optometry; University of Alabama School of Optometry; University of Houston College of Optometry; and State University of New York Stony Brook, Department of Preventive Medicine conducted the five-year study.