Can myopia and hyperopia occur at the same time?

Jun 25, 2025 Source: Cainiu Health
Dr. Wang Shuai
Introduction
Myopia (nearsightedness) occurs when the front-to-back axis of the eyeball is too long, or the corneal curvature is too steep, causing distant objects to appear blurry. Conversely, hyperopia (farsightedness) occurs when the front-to-back axis of the eyeball is too short, or the corneal curvature is too flat, making nearby objects appear blurry. These two visual conditions are opposites in terms of visual physiology and therefore typically do not occur in the same person.

Generally, myopia and hyperopia do not occur simultaneously in the same person. The specific analysis is as follows:

Myopia typically occurs when the eyeball is too long from front to back, or the cornea is too curved, causing light from distant objects to focus in front of the retina before it reaches it, resulting in blurred vision of distant objects. In contrast, hyperopia occurs when the eyeball is too short from front to back, or the cornea is not curved enough, causing light from nearby objects to focus behind the retina, leading to blurred vision of close objects. These two visual conditions are physiologically opposite and therefore generally do not occur in the same person.

In daily life, it is important to maintain proper eye usage posture, ensure adequate lighting while reading, have regular eye examinations, maintain a balanced diet rich in vitamins A, C, and E, avoid rubbing the eyes carelessly, and take measures to prevent eye infections, in order to prevent the occurrence of myopia or hyperopia.

Related Articles

View All