Which of the following conditions involves a problem with seeing near objects due to the eye's shape?

The condition that involves difficulty seeing near objects due to the shape of the eye is hyperopia. In hyperopia, or farsightedness, the eyeball is often too short or the cornea has too little curvature. This causes light entering the eye to focus behind the retina, making it challenging to see close objects clearly. People with hyperopia may have no issues seeing objects that are far away, but they struggle to focus on nearby items, which is why they may experience discomfort or eye strain when reading or doing close work.

While presbyopia is also a condition related to difficulty seeing nearby objects, it primarily occurs as a natural part of aging and results from the eye's lens losing flexibility over time. Myopia, on the other hand, is a condition where nearby objects are seen clearly, but distant objects appear blurry because the eye is too long or the cornea has too much curvature, which causes light to focus in front of the retina. Astigmatism is related to an irregular shape of the cornea or lens, leading to distorted vision at all distances. However, hyperopia specifically refers to the challenges faced in seeing near objects due to the shape of the eye.