Myopia is cause by the shape of the eyeball being longer than the focal length of the lens. The eye focuses light from distant objects onto the front of the retina, causing blurred vision. People who are nearsightedness can see objects that are close up or read books at close range. But have trouble seeing things far away, driving, or playing sports.
Children whose parents are nearsighted are more likely to develop myopia as well. Myopia in children often worsens over time if a child does not spend enough time outdoors. If they do not use their eyes to see things up close or stare at screens frequently.
In addition to the above symptoms, there are other symptoms that indicate that you are “myopia”. And each symptom has a different cause, including:
Can’t see road signs while driving: Both the small letters and the distance of the signs are too far for the focal point to hit the retina. When the light falls before reaching the retina, even with low vision, it can cause blurry vision.
You have to walk closer to see a clearer image: When we walk closer to an object, the focal point of light is push back, สมัคร UFABET วันนี้ รับเครดิตฟรีสำหรับสมาชิกใหม่, closer to the retina, so we see a clearer image.
Blurred vision all the time when looking into the distance: The symptom of blurred vision in the distance. It is cause by the focus of light before it reaches the retina, causing the distant image to be unclear or blurred.
When looking into the distance and feel clearer: When we squint, the pupils contract, making the image clearer. Because for people with nearsightedness, the more the pupils dilate, the more blurred the image will be.
Finally, in low light, vision is significantly worse than during the day: This is because at night or in low light conditions. The pupil responds to darkness by dilating to allow more light into the eye. Which makes nearsighted people less able to see clearly. In other words, the darker it is, the worse the vision becomes.