Presbyopia

Presbyopia is a common eye condition that affects the ability to see things up close, especially as people get older. It involves the eye's lens, which becomes less flexible over time, making it harder to focus on nearby objects. This condition primarily affects the visual system and is a natural part of aging. People with presbyopia often notice difficulty reading small print or doing close-up work without holding objects farther away. It usually starts to become noticeable in the mid-40s to 50s. Although it does not cause blindness, it can significantly impact daily activities that require clear near vision. The main symptom is blurred near vision while distance vision remains relatively normal.

Presbyopia is an age-related condition characterized by the progressive loss of the eye's ability to accommodate, or focus on near objects, due to decreased lens elasticity and weakening of the ciliary muscle function. This results in impaired near vision and is caused by the natural hardening of the crystalline lens and changes in the lens capsule. It typically manifests in adults over 40 years old and is considered a form of accommodation insufficiency. The condition is distinct from refractive errors like myopia or hyperopia but can coexist with them. Clinically, presbyopia is significant because it affects reading and other close work, often requiring corrective lenses such as reading glasses or multifocal lenses. It is a universal, progressive process linked to normal aging of the ocular system.