Floaters: Are They Causing Your Vision Issues? - Ophthalmology

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Hello! Thank you for your question regarding floaters and their potential impact on your vision. Floaters are small, shadowy shapes that can appear in your field of vision, often described as spots, threads, or cobwebs. They are typically caused by changes in the vitreous humor, the gel-like substance that fills the eye. As we age or due to certain conditions like myopia (nearsightedness), the vitreous can become more liquid and may pull away from the retina, leading to the perception of floaters.

In your case, with a myopia of -6.00 diopters and the presence of floaters, it is not uncommon to experience visual disturbances such as the sensation of a "black film" when looking at bright backgrounds, like the sky. This phenomenon can be attributed to the way light interacts with the floaters in your vitreous. When you look at a bright surface, the contrast can make the floaters more noticeable, creating the illusion of a thin film or veil over your vision. This is generally a benign condition, but it can be disconcerting.

You mentioned that you have undergone a dilated eye exam (散瞳檢查) to check your retina, which is an important step in assessing the health of your eyes. If your retina was found to be healthy during this examination, it is a good sign. However, if you continue to experience significant changes in your vision, such as an increase in the number of floaters, flashes of light, or any sudden changes in your visual field, it is crucial to seek further evaluation. These symptoms could indicate a more serious condition, such as retinal detachment, which requires immediate attention.

In terms of additional tests, if your eye doctor has ruled out any serious issues with your retina and you are only experiencing floaters, further testing may not be necessary at this time. However, regular follow-ups are essential, especially since you have a history of myopia, which can predispose you to certain eye conditions.

To manage your symptoms, it is advisable to maintain a healthy lifestyle, including a balanced diet rich in antioxidants, staying hydrated, and protecting your eyes from excessive UV exposure. Regular eye exams are also crucial, as they allow for monitoring of any changes in your eye health.

In conclusion, while floaters can be bothersome, they are often a normal part of the aging process or related to myopia. If your dilated eye exam showed no issues with your retina, you may not need to worry excessively. However, remain vigilant about any changes in your vision and consult your eye care professional if you have concerns. Your eye health is paramount, and staying informed is the best way to ensure it remains in good condition. Thank you for reaching out, and I wish you the best in your eye health journey!