In the extensive literature on bifocals for myopia control, study outcomes have been variable. The examiner was not masked to subject treatment group in this study, so it could be argued that inadvertent examiner bias could have affected the refractive error results. However, the vitreous depth increases show the same trend of less change in the progressive addition lens groups than in the single vision lens group. It is unknown whether this was due to the population studied or unrecognized variables or whether progressives may be more effective in myopia control than bifocals. One possible advantage of progressive addition lenses in this regard is that parents may more readily accept progressives than bifocals.
Most children adapt successfully to progressive addition lenses.
Nearpoint plus can be beneficial in non-presbyopes with conditions such as convergence excess and accommodative insufficiency. This study suggests that nearpoint plus in the form of progressive addition lenses can also be useful in myopia control. Accommodation, Nearwork and Myopia. Rosenfield M, Gilmartin B, eds. Myopia and Nearwork.