Larrabee PE Jr, Jones FR. Behavioral effects of low plus lenses. Percept Mot Skills. 1980 Dec;51(3 Pt 1):913-4.
This study explored the relationship between the application of low plus reading lenses and the improvement of performance at a child's near working distance. 11 school-aged subjects were selected at random, screened for their ability to accept low plus lenses, then given a paper-and-pencil task to perform both with and without the plus lenses. Statistically significant behavioral changes were associated with wearing the low plus-power reading lenses while performing the near paper-and-pencil task.