High Myopia: Accurate Measurements and Future Risks - Ophthalmology

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High myopia, defined as a refractive error of -6.00 diopters or more, poses significant risks for various ocular complications, including retinal detachment, glaucoma, and myopic maculopathy. Your concerns about the accuracy of your measurements and the progression of your myopia are valid and warrant a comprehensive understanding.

Firstly, regarding the discrepancy between the measurements from the eye clinic and the optical shop, it is essential to consider that different devices and techniques can yield varying results. The eye clinic likely uses more advanced and precise equipment, such as autorefractors or wavefront aberrometers, which can provide a more accurate assessment of your refractive error. In contrast, optical shops may use simpler methods that can be influenced by factors such as lighting conditions and the technician's experience. Therefore, the measurement from the eye clinic (1000 degrees) is likely more accurate, especially given your history of high myopia.

As for your concern about the progression of your myopia, it is not uncommon for high myopia to continue progressing into adulthood, albeit at a slower rate. The typical progression can vary from person to person, with some individuals experiencing a stabilization of their refractive error in their late twenties to early thirties. However, it is also possible for some individuals to continue experiencing changes in their prescription well into their forties. The decrease in astigmatism you mentioned is also not unusual; as the eye grows and changes shape, the corneal curvature can stabilize, leading to a reduction in astigmatism.

Regular eye examinations are crucial for individuals with high myopia, as they allow for early detection of potential complications. The risk of developing serious eye conditions increases with the degree of myopia. Studies have shown that individuals with high myopia have a significantly higher risk of retinal detachment, myopic maculopathy, and glaucoma compared to those with normal vision. The lifetime risk of these complications can be as high as 50% or more for those with severe myopia. Therefore, maintaining regular check-ups with an ophthalmologist is essential for monitoring your eye health and addressing any emerging issues promptly.

In terms of managing high myopia, there are several strategies that can be employed. These include the use of corrective lenses, such as glasses or contact lenses, and in some cases, surgical options like LASIK or implantable lenses. Additionally, recent advancements in myopia control strategies, such as orthokeratology (ortho-k) and the use of atropine eye drops, have shown promise in slowing the progression of myopia in children and adolescents. However, their effectiveness in adults is still under investigation.

Lastly, it is understandable to feel anxious about the potential risks associated with high myopia. Educating yourself about the condition, maintaining regular eye exams, and discussing your concerns with your eye care professional can help alleviate some of this anxiety. They can provide personalized advice based on your specific situation and help you understand the best course of action for managing your eye health.

In summary, the measurement from the eye clinic is likely more accurate, and while it is normal for high myopia to progress, regular monitoring is essential. The risks associated with high myopia are significant, but with proper care and management, you can help mitigate these risks and maintain your eye health.