The development of presbyopia is primarily attributed to two main factors. First, it results from the natural aging process affecting the eye’s crystalline lens. As individuals age, the lens gradually loses its flexibility and elasticity, hindering its ability to change shape for near focus. Second, the weakening of the ciliary muscles, responsible for adjusting the lens curvature, contributes to presbyopia. This age-related decline in muscle function reduces the eye’s accommodation ability, making it challenging to focus on close-up objects. Both factors, the changes in the lens and the diminished muscle function, collectively lead to the onset of presbyopia in middle to older age.