What condition results when the crystalline lens loses flexibility, diminishing near focal power?

The condition that results when the crystalline lens loses flexibility, diminishing near focal power, is presbyopia. As individuals age, the lens of the eye becomes less elastic, making it harder to focus on close objects. This is a natural part of the aging process and typically begins to affect people in their 40s or 50s. The decreased ability to accommodate, or change focus, leads to difficulty with tasks such as reading small print or doing close work without the aid of reading glasses.

In contrast, anisometropia refers to a significant difference in the refractive power between the two eyes, which can cause issues with depth perception and vision clarity, but it is not specifically related to the loss of flexibility in the lens. Astigmatism is caused by an irregular shape of the cornea or lens, leading to distorted vision at all distances, rather than an issue with lens flexibility. Myopia, or nearsightedness, occurs when the eye is too long or the cornea is too curved, causing distant objects to appear blurry, but this condition is unrelated to the loss of leniency in the lens itself.

Understanding presbyopia helps provide better customer care, especially as many people seek solutions to improve their reading vision as they