Is a visual acuity of 4.6 considered myopia?
Disease description:
During a physical examination, my visual acuity was only 4.6, and my vision has become blurry. Does this mean I have myopia? Do I need to wear corrective lenses? Will it get worse over time?
Doctor's answer (1)
Dr. Wang Shuai
In general, a visual acuity of 4.6 does not directly indicate whether someone has myopia.
A visual acuity of 4.6 refers to the specific level of distance or near vision acuity, representing the smallest optotype a subject can discern at a distance of 5 meters or 30 centimeters. It does not directly diagnose myopia. Myopia is a condition in which, with the eye's accommodation relaxed, parallel light rays focus in front of the retina after passing through the eye's optical system, resulting in blurred vision of distant objects.
To determine whether a visual acuity of 4.6 is caused by myopia, a professional refraction examination is necessary. After refraction testing, if myopia is detected, a diagnosis of myopia can be confirmed. Additionally, the use of cycloplegic agents to dilate the pupils before refraction can help differentiate whether pseudomyopia exists. If myopia is diagnosed, doctors will recommend appropriate correction methods such as wearing eyeglasses, contact lenses, or undergoing laser refractive surgery, depending on the severity of myopia and individual circumstances.
In daily life, it is recommended to maintain good living habits and proper eye usage practices to help prevent myopia and preserve eye health.
