High Myopia: Myths, Risks, and Eye Health Concerns - Ophthalmology

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Understanding high myopia is crucial for anyone affected by this condition, as it can lead to various eye health concerns and complications. Let's address your questions one by one, while also providing some context and additional information about high myopia.

1. High Myopia and Glaucoma: The relationship between high myopia and glaucoma is complex. While some studies suggest that high myopia may not significantly increase the risk of glaucoma, it is essential to understand that individuals with high myopia can still be at risk for other eye conditions, including glaucoma. High myopia can lead to changes in the eye's structure, which may predispose some individuals to glaucoma. Regular eye exams are crucial for monitoring eye pressure and assessing the optic nerve, especially in those with high myopia.

2. Myopia Degree and Retinal Degeneration: Your doctor’s assessment that your myopia (around 500-600 degrees) is not severe and that the degree of peripheral retinal degeneration is usually minimal is generally accurate. However, even moderate myopia can lead to retinal changes over time. It is essential to have regular eye examinations, as the risk of retinal complications can increase with age and other factors, regardless of the degree of myopia.

3. Blurry Vision with Single Eye Use: The experience of blurry vision when using one eye, despite having a prescription that is close to your actual needs, can be attributed to several factors. The difference in prescription (600 degrees vs. 650 degrees) may not seem significant, but even a small difference can affect clarity, especially at varying distances. Additionally, factors such as eye fatigue, dry eyes, or even slight misalignment of the eyes can contribute to the inability to focus clearly. It’s also worth noting that visual acuity measurements (like 1.0) do not always capture the nuances of how well you see in different conditions or with different eye usage.

4. Heavy Lifting and Retinal Detachment: Concerns about heavy lifting causing retinal detachment are valid, especially for individuals with high myopia. While heavy lifting itself may not directly cause retinal detachment, it can increase intraocular pressure and strain, which may pose a risk for those already predisposed due to their myopic condition. It is advisable to practice caution and consult with an eye care professional about safe lifting techniques and any necessary precautions you should take.

In summary, while high myopia does carry certain risks, including potential complications like retinal detachment and glaucoma, the degree of risk varies among individuals. Regular eye examinations are vital for monitoring eye health and addressing any concerns early. Maintaining good eye health practices, such as taking breaks from screens, ensuring proper lighting, and managing overall health, can also help mitigate risks associated with high myopia. If you have ongoing concerns or experience changes in your vision, it is essential to discuss these with your eye care provider for tailored advice and management strategies.