Is blurred vision when watching TV a sign of myopia?

Nov 19, 2025 Source: Cainiu Health

Dr. Wang Lei

Introduction

In general, whether blurred vision when watching TV indicates myopia needs to be determined based on specific circumstances. To identify the exact cause of the blurred vision, it is recommended to seek timely medical attention and undergo a comprehensive eye examination for an accurate diagnosis and appropriate treatment. Meanwhile, in daily life, one should pay attention to proper eye usage, and control the time spent watching TV or using electronic devices.

In general, whether blurred vision when watching TV indicates myopia depends on the specific circumstances. The detailed analysis is as follows:

If blurred vision when watching TV is accompanied by consistently unclear distance vision and does not significantly improve after resting, it may be a sign of myopia. This condition often results from prolonged near-work eye use, causing sustained ciliary muscle tension and elongation of the eye's axial length. As a result, parallel light rays focus in front of the retina. Besides blurry TV viewing, distant objects such as blackboards or road signs also appear hazy. Vision usually improves noticeably with corrective myopic glasses.

If blurriness occurs only occasionally, with clear distance and normal near vision, it typically is not myopia. It may instead stem from eye strain due to excessive TV watching, inadequate lighting, or screen brightness causing eye discomfort. Other possible causes include astigmatism or dry eye syndrome. Symptoms often subside after brief rest or adjusting the viewing environment.

To determine the exact cause of blurred vision when watching TV, it is recommended to seek timely medical evaluation and undergo a comprehensive eye examination for accurate diagnosis and appropriate treatment. Additionally, maintaining healthy visual habits in daily life—such as limiting screen time, using electronic devices responsibly, adopting proper viewing posture, and spending more time outdoors—is essential for eye health.

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What should I do if my nearsightedness suddenly worsens?

If nearsightedness suddenly worsens, it is important to promptly undergo an eye examination to reassess vision, rule out eye diseases, adjust visual habits, improve the visual environment, and supplement nutrients beneficial for eye health, so as to avoid delaying diagnosis and treatment of potential problems. If accompanied by symptoms such as eye pain, distorted vision, light sensitivity, or excessive tearing, immediate medical evaluation is recommended. A professional eye exam can accurately determine changes in myopia degree and distinguish between true myopia and pseudo-myopia.

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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 500-degree myopia in terms of decimal visual acuity?

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.

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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.