This research was also able to identify a number of things that patience is not; specifically, patience is not just the opposite of impatience, delay of gratification, or self-regulation of emotion. The evidence for the effects of patience, though limited, seems to reflect both positive and negative outcomes.
Using the same method, in 1999â2004, myopia prevalence was estimated to have climbed to 41.6%. A study of 2,523 children in grades 1 to 8 (age, 5â17 years) found nearly one in 10 (9.2%) have at least â 0.75 diopters of myopia.
The causes of hyperopia are typically genetic and involve an eye that is too short or a cornea that is too flat, so that images focus at a point behind the retina. The opposite of hyperopia is myopia.