Presbyopia is primarily related to which of the following factors?

Presbyopia is a vision condition that typically occurs as a part of the natural aging process. As individuals age, the lens of the eye becomes less flexible, making it harder to focus on close-up objects. This decrease in flexibility impairs the ability to accommodate, or adjust focus, which is why presbyopia is predominantly related to age.

While genetics can play a role in many eye conditions, presbyopia specifically is nearly universal among individuals over the age of 40. Nutrition and eye injury can certainly impact overall eye health and may influence the progression of various eye conditions, but they are not the primary factors leading to presbyopia. It is mainly the natural physiological changes that occur with aging that are responsible for this condition.