Can You Dive and Skydive with High Myopia and Astigmatism? - Ophthalmology

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When considering activities like free diving and skydiving with high myopia (nearsightedness) and astigmatism, there are several important factors to keep in mind. Your specific prescription of -7.00 diopters for myopia and -2.00 diopters for astigmatism indicates a significant level of visual impairment, which can affect your ability to safely participate in these activities.

1. Free Diving: Generally, individuals with high myopia can participate in free diving, but it is crucial to ensure that your vision is adequately corrected. Underwater visibility can be challenging, and without proper correction, you may struggle to see clearly, which could pose safety risks. Most divers use prescription masks that can accommodate their specific vision needs.
2. Prescription Masks: When it comes to prescription masks for diving, it is true that some divers recommend reducing the prescription slightly due to the effects of water on vision. A common guideline is to reduce the prescription by about 0.5 to 1.0 diopter. However, this can vary based on individual comfort and the specific mask design. It is advisable to consult with an optometrist who specializes in sports vision or diving to get the most accurate prescription for your diving mask.

3. Skydiving: For skydiving, the same principles apply. You can participate in skydiving with high myopia and astigmatism, but you will need to ensure that your vision is corrected adequately. Many skydivers wear goggles that can be fitted with prescription lenses. It is essential to ensure that your vision is clear during the jump, as this will help you maintain awareness of your surroundings and ensure a safe landing.

4. Sports Glasses for Basketball and Running: When it comes to sports glasses for activities like basketball or running, it is generally recommended to use your full prescription. There is a common misconception that reducing the prescription can help with eye pressure; however, this is not typically necessary. Instead, using the full prescription will provide the clearest vision, which is crucial for performance and safety in sports. If you have concerns about eye pressure or discomfort, it would be best to discuss these with your eye care professional.

5. Blue Light Glasses: Regarding blue light glasses, they are often marketed as a way to reduce eye strain from prolonged computer use. While there is ongoing debate about their effectiveness, if you spend significant time in front of screens, using blue light blocking glasses may help reduce discomfort. However, they are not strictly necessary for everyone. Maintaining good ergonomic practices, taking regular breaks, and ensuring proper lighting can also help mitigate eye strain.

In summary, with high myopia and astigmatism, you can participate in activities like free diving and skydiving, provided you have the appropriate vision correction. Always consult with an eye care professional to ensure that your prescriptions are accurate for your specific activities. Additionally, for sports and screen use, using your full prescription and considering blue light glasses can enhance your visual comfort and performance.