What is 500-degree myopia in terms of decimal visual acuity?

Nov 19, 2025 Source: Cainiu Health

Dr. Wang Lei

Introduction

If an individual has strong accommodative ability of the eyes, even with 500 degrees of myopia, they may achieve around 0.2 visual acuity during a standard eye chart test by relying on the eye's natural accommodation, barely recognizing the larger optotypes on the chart. However, distant details still appear blurry, and prolonged visual tasks can easily cause eye strain. Therefore, they still need corrective devices to improve their vision.

Generally, there is no fixed standard for the visual acuity value corresponding to 500 degrees of myopia, but it typically ranges around 0.1 to 0.2, varying due to individual differences in the eye's accommodation ability. If concerned, it is advisable to consult a medical professional promptly. Detailed analysis is as follows:

If an individual has strong eye accommodation ability, even with 500 degrees of myopia, they may achieve visual acuity around 0.2 during an eye test by relying on natural eye adjustment. They might barely recognize larger optotypes on the vision chart, but distant details remain blurry. Prolonged visual tasks can easily lead to eye fatigue, and corrective devices are usually needed to improve vision.

If an individual has weak eye accommodation or additional refractive errors such as astigmatism, the visual acuity associated with 500-degree myopia may be lower—around 0.1—or they may not even clearly discern the largest optotype on the chart. This significantly affects daily activities such as traveling and reading, and quality of life is notably impaired without wearing corrective glasses.

Routine eye examinations at正规 medical institutions are recommended to monitor changes in vision. Avoid prolonged near-work; take breaks by looking into the distance every 30 minutes of close-up tasks. If sudden vision decline or worsening blurriness occurs, seek prompt medical evaluation to rule out other eye conditions and ensure stable vision.

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How to Get Rid of Myopia Glasses

To get rid of myopic glasses, common methods include laser surgery, implantable intraocular lenses, orthokeratology (corneal reshaping lenses), vision training, and controlling the progression of myopia. Eligible individuals may choose laser surgeries such as SMILE or LASIK, which adjust the corneal shape to correct refractive errors, allowing light to focus accurately on the retina. After surgery, clear vision can be achieved without the need for glasses.

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What is the highest degree of myopia?

From the perspective of common clinical classifications, myopia exceeding 600 degrees is considered high myopia, and over 1200 degrees is classified as very high myopia. Although these conditions are relatively rare in the general population, the number of individuals with high myopia has been gradually increasing due to changes in eye usage habits. Most patients with high myopia can maintain normal daily lives through appropriate correction, provided that no severe structural abnormalities have developed in the eye.

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How to recover from myopia in children's eyes

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