What degree of myopia is 4.8 vision?

Generally, a visual acuity of 4.8 may correspond to mild myopia of 50–100 degrees, or it may simply reflect eye strain without actual myopia; an accurate assessment requires an optometric examination. If concerned, it is advisable to seek medical consultation promptly. Detailed analysis is as follows:

If the eye has simple myopia without astigmatism or other ocular issues, a visual acuity of 4.8 typically indicates mild myopia in the range of 50–100 degrees. This condition is commonly seen in adolescents or individuals who frequently engage in near-work activities. Distant objects (such as road signs or blackboards) may appear slightly blurry, but close-up daily activities (like reading or using electronic devices) are usually unaffected. Some individuals may temporarily relieve blurriness through rest.

If visual acuity of 4.8 is not caused by true myopia, it could result from eye strain, pseudomyopia, or mild astigmatism. Chronic sleep deprivation and excessive use of electronic devices can lead to eye fatigue and temporary vision decline. Adolescents have strong accommodative ability in their eyes, making them prone to ciliary muscle spasm, which causes pseudomyopia. Mild astigmatism can also impair visual clarity, causing double or distorted images. These conditions do not require corrective lenses for myopia and can be improved through adjustments in visual habits or targeted interventions.

Upon detecting a visual acuity of 4.8, it is recommended to visit a qualified healthcare provider for a professional refraction test to determine whether true myopia is present. In daily life, follow the rule of resting your eyes for 5 minutes after every 40 minutes of visual work, and avoid using your eyes in dim lighting. If mild myopia is confirmed, regular vision check-ups are essential to prevent further progression of refractive error.