Final answer:
Presbyopia is an age-related condition impacting the ability to see nearby objects, caused by reduced elasticity of the lens and weakening of controlling muscles. Converging lenses are used to compensate for the reduced accommodating power of the eye.
Step-by-step explanation:
The observed decrease in the power of an eye to see nearby objects with age is known as presbyopia. This common age-related condition is a result of the lens becoming less elastic and the muscles that control the lens gradually losing strength. When these changes occur, individuals may experience symptoms such as eyestrain and difficulty focusing on small objects or reading fine print, typically between the ages of 40 and 50. To correct this vision problem, converging lenses are often used to add power for close vision, as the ability of the eye to accommodate or adjust its focusing power is reduced. Additionally, surgical procedures for presbyopia have not proven as successful as those for other vision issues like myopia or hyperopia, making corrective lenses a common and necessary solution.