What condition results from the lens losing elasticity, affecting the ability to focus on nearby objects?

The condition that results from the lens losing its elasticity, which affects the ability to focus on nearby objects, is presbyopia. As people age, the lens becomes less flexible, making it increasingly difficult to adjust focus for close tasks, such as reading or sewing. This decline in the lens's ability to accommodate results in a clear vision at a distance but blurriness up close.

In contrast, myopia, or nearsightedness, occurs when distant objects appear blurry while near objects remain clear due to problems with the shape of the eye or the lens. Hyperopia, or farsightedness, is the opposite condition where near objects are blurry and far objects can be seen more clearly, often due to the eyeball being too short or the cornea being too flat. Cataracts involve clouding of the lens, which can cause blurred vision but is primarily associated with changes in the lens tissue rather than loss of elasticity alone. Presbyopia specifically targets the inability to focus on near objects caused by the natural aging process of the lens.