What’s the evidence that bifocal contact lenses slow down myopia in children?

In one study, myopia progression and eye elongation were reduced significantly with the use of bifocal contact lenses.1 

Forty children, age 11 to 14, wore a dual-focus lens in one randomly assigned eye and a single vision distance lens in the fellow eye for 10 months.

The lenses were then swapped between eyes and worn for another 10 months.

Researchers found that for 70% of the children, myopia progression was reduced by 30% or more in the eye wearing the bifocal lens compared to the single vision lens.1 

The data suggest that with bifocal lenses, the sustained myopic defocus can slow myopia progression without compromising visual function—even when presented to the retina simultaneously with a clear image.1


  1. Anstice NS, Phillips JR. Effect of dual-focus soft contact lens wear on axial myopia progression in children. Ophthalmology. 2011 Jun;118(6):1152-61