National Academy of Sports Medicine (NASM) Senior Fitness Specialist (SFS) Practice Test

Visual acuity typically reaches its peak during late adolescence and into the early twenties. During this developmental stage, the visual system has matured, optimizing visual clarity and depth perception. This age range corresponds with the body's overall biological maturity, where the eye's lens becomes less flexible, and the retina is functioning at its highest capacity.

While the teenage years may see significant development and improvement in visual skills, they are often still in a state of growth and change. The early twenties mark a point where individuals have usually reached their maximum potential for visual performance. By the mid-thirties, individuals may begin to experience changes in vision related to presbyopia, a condition where the eye's ability to focus on near objects declines. Therefore, the designation of late adolescence/early twenties as the peak period for visual acuity reflects an understanding of both physical maturation and optimal functionality of visual processing at this stage of life.