What is the one of the reasons for myopia?

One of the main causes of myopia is an elongated eyeball. In a normal, round-shaped eye, light rays focus directly on the retina at the back of the eye, allowing clear vision. However, when the eyeball grows too long from front to back, the light focuses in front of the retina instead. This makes distant objects appear blurry while close objects remain clear.

The exact reason for this change in eye shape is still under research, but scientists believe it results from a mix of genetic and environmental factors.

Other Contributing Factors

1. Genetics: Myopia often runs in families. If one or both parents are nearsighted, there’s a higher chance their children will also develop it.

2. Excessive Near Work: Spending long hours doing close-up tasks like reading, using computers, or playing on mobile devices increases the risk of myopia.

3. Limited Outdoor Time: Children who spend more time outdoors tend to have a lower risk of myopia. Exposure to natural light is believed to have a protective effect on the eyes.

4. Higher Education Levels: Myopia is more common among people with higher education, likely because they spend more time doing near-focused activities such as studying and reading.