What is the term for far-sightedness, which is the most common condition related to refractive error?

The term for far-sightedness is hyperopia, which is characterized by difficulty in seeing close objects clearly while distant objects may be seen more clearly. This condition occurs when the eyeball is too short compared to the focusing power of the cornea and lens, resulting in light entering the eye being focused behind the retina. Hyperopia is indeed the most prevalent type of refractive error, affecting a significant portion of the population.

Astigmatism refers to a condition where the cornea or lens has an irregular shape, causing blurred vision at any distance. Myopia is the term for near-sightedness, where distant objects appear blurry because they are focused in front of the retina due to an elongated eyeball or excessive curvature of the cornea. Emmetropia describes a state of normal vision where light is accurately focused on the retina without corrective lenses. Thus, hyperopia is the correct term specifically associated with far-sightedness.