What is presbyopia characterized by?

Presbyopia is characterized by age-related difficulty in focusing on close objects, which occurs due to the gradual loss of flexibility in the lens of the eye. As people age, the lens becomes stiffer and less able to change shape, making it challenging to focus on objects that are nearby. This condition typically becomes noticeable in individuals around the age of 40 and can lead to symptoms such as blurred vision when reading or performing other tasks that require close focus.

The other options refer to different visual conditions unrelated to presbyopia. Loss of peripheral vision is often associated with conditions such as glaucoma or retinal damage, while increased sensitivity to light can be linked to issues such as cataracts or certain neurological conditions. Distortion of visual images may be related to refractive errors or conditions like astigmatism or macular degeneration, but they do not describe the specific changes involved in presbyopia.