What is hyperopia commonly known as?

Hyperopia is commonly known as far-sightedness because it is a refractive error where distant objects can be seen more clearly than nearby objects. In cases of hyperopia, light entering the eye is focused behind the retina rather than directly on it, leading to difficulties with close-up tasks, such as reading or sewing. This condition arises from an eye that is too short relative to the focusing power of the cornea and lens, or from changes in the lens's ability to focus. Consequently, individuals with hyperopia often require corrective lenses that enable them to see better at close range.

The other options, such as near-sightedness, astigmatism, and color blindness, refer to different visual impairments that do not encompass the same properties as hyperopia. Near-sightedness, for instance, is characterized by difficulty seeing distant objects. Astigmatism is due to an irregular shape of the cornea or lens, causing blurred vision at all distances. Color blindness refers to a deficiency in the ability to perceive colors accurately. Each of these conditions has distinct causes and symptoms, clearly differentiating them from hyperopia.