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(An inability to adjust the lens for accommodation to) near vision
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Final answer:

The question pertains to presbyopia, an eye condition where the ability to focus on near objects is lost due to the lens of the eye becoming less flexible with age. It is corrected by converging lenses, unlike myopia (nearsightedness), which is corrected by diverging lenses to reduce the optical power for distant vision.

Step-by-step explanation:

The subject of this question relates to an eye condition where there is difficulty in adjusting the lens of the eye for near vision, which is medically known as presbyopia. Presbyopia is a common condition that occurs due to aging where the eye loses its ability to focus on close objects. On the other hand, myopia, also known as nearsightedness, is the inability to see distant objects clearly. Myopia is corrected with a diverging lens to reduce the optical power of the eye, whereas presbyopia is corrected using a converging lens to aid in focusing on objects that are close to the viewer.

Both these conditions involve issues with accommodation, which refers to the eye's ability to adjust its focal length to focus images on the retina. In myopia, the images of distant objects are focused in front of the retina, causing them to appear blurred. Presbyopia, however, specifically concerns the reduced ability of the lens to accommodate for near tasks as the lens becomes less flexible with age.

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