Distortion or deformation
The distortion and deformation of tiles are not fixed in the visual field.
It is more pronounced without glasses.
I have undergone a fundus examination and imaging, but no cause has been identified.
Niming, 20~29 year old female. Ask Date: 2015/09/18
Dr. He Jianxian reply Ophthalmology
It is recommended that you visit a medical center for a thorough examination to determine the cause.
Reply Date: 2015/09/18
More Info
Distorted vision can be a perplexing and frustrating experience, especially when the underlying causes are not immediately apparent. Based on your description of seeing tiles appearing warped or distorted, and the fact that the issue is more pronounced when not wearing glasses, several potential causes and solutions can be considered.
Possible Causes of Distorted Vision
1. Refractive Errors: The most common cause of distorted vision is refractive errors, which include myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. Since you mentioned that not wearing glasses makes the distortion more noticeable, it is possible that your current prescription may not adequately correct your vision, particularly if there have been changes in your eyesight.
2. Astigmatism: Given your history of astigmatism, this could be a significant factor. Astigmatism occurs when the cornea or lens is irregularly shaped, causing light to focus on multiple points in the eye rather than a single point. This can lead to blurred or distorted vision, especially in low-light conditions or when viewing objects at a distance.
3. Visual Fatigue: Prolonged use of digital devices or reading without proper breaks can lead to visual fatigue, which may exacerbate any existing refractive errors. Symptoms can include blurred vision, eye strain, and difficulty focusing.
4. Neurological Issues: Although less common, neurological conditions can also cause visual distortions. If there are issues with the visual pathways in the brain, it could lead to altered perceptions of visual stimuli.
5. Eye Health Conditions: Conditions such as cataracts, macular degeneration, or retinal issues can also lead to distorted vision. However, since you mentioned that your eye examinations, including fundus photography, did not reveal any issues, this may be less likely.
Solutions and Recommendations
1. Comprehensive Eye Exam: It is crucial to have a thorough eye examination by an eye care professional. This should include a refraction test to determine if your current prescription is adequate. If you have not had a recent exam, consider scheduling one to reassess your vision.
2. Update Prescription Glasses: If your prescription is outdated or incorrect, updating your glasses can significantly improve your vision. Ensure that the lenses are properly aligned and suited for your specific visual needs.
3. Consider Contact Lenses: If glasses are not providing the clarity you need, contact lenses may be a viable alternative. They can offer a wider field of vision and eliminate some distortions associated with glasses.
4. Visual Hygiene: Practice good visual hygiene by taking regular breaks when using screens or reading. The 20-20-20 rule is a helpful guideline: every 20 minutes, look at something 20 feet away for at least 20 seconds to reduce eye strain.
5. Eye Exercises: Some eye care professionals recommend exercises to strengthen eye muscles and improve focus. These can be particularly beneficial if you experience visual fatigue.
6. Consult a Specialist: If the problem persists despite corrective measures, consider consulting a specialist, such as a neuro-ophthalmologist, who can evaluate for any underlying neurological issues that may be affecting your vision.
7. Lifestyle Adjustments: Ensure that your environment is conducive to good vision. Adequate lighting, reducing glare from screens, and maintaining a proper distance from reading materials can help alleviate some symptoms.
In conclusion, distorted vision can stem from various causes, primarily related to refractive errors or visual fatigue. A comprehensive eye examination is essential to identify the underlying issue and determine the appropriate corrective measures. By addressing these factors, you can work towards achieving clearer and more stable vision.
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