Vision Changes During Intense Running: Eye or Heart Issue? - Ophthalmology

More Info

---

When experiencing visual disturbances such as a darkening of the peripheral vision or the appearance of a large dark circle in the center of your vision during intense running, it is essential to consider both ocular and cardiovascular factors. Based on your description, it seems that the symptoms you are experiencing are likely related to your eyes rather than a direct cardiovascular issue, although there may be an interplay between the two.

During intense physical activity like running, your body undergoes various physiological changes. Your heart rate increases, blood pressure rises, and blood flow is redirected to the muscles that are working hard. This can lead to temporary changes in blood flow to other areas, including the eyes. If the blood supply to the retina is compromised, even momentarily, it can result in visual disturbances such as dimming or blurring of vision. This phenomenon is sometimes referred to as "exercise-induced visual disturbances."
Your history of arrhythmia (irregular heartbeat) could potentially contribute to these symptoms. While your doctors have indicated that there are no significant issues, arrhythmias can sometimes affect the efficiency of blood circulation, which may lead to transient changes in vision during strenuous activities. It is crucial to ensure that your cardiovascular system is functioning optimally, particularly during exercise. If you have not already done so, consulting with a cardiologist to evaluate your heart's response to exercise might be beneficial.

Additionally, your mention of having floaters (known as "muscae volitantes") is relevant. Floaters are typically benign and occur when tiny pieces of gel or cells inside the vitreous (the gel-like substance in the eye) clump together. However, if you notice a sudden increase in floaters or flashes of light, it is essential to seek immediate medical attention, as these could be signs of retinal detachment or other serious conditions.

The fact that your symptoms subside after you stop running suggests that they are likely transient and related to the physical exertion rather than a chronic eye condition. However, it is always wise to keep a close watch on any changes in your vision, especially if they become more frequent or severe.

In summary, while your symptoms may not indicate a severe underlying condition, it is essential to continue monitoring your health. Here are some recommendations:
1. Consult a Cardiologist: Given your history of arrhythmia, it would be prudent to have a thorough evaluation of your cardiovascular health, especially during exercise.

2. Eye Examination: Regular eye check-ups are essential, particularly if you notice any changes in your vision. Discuss your symptoms in detail with your eye doctor.

3. Hydration and Nutrition: Ensure you are well-hydrated and nourished before and during your runs, as dehydration can also affect your vision and overall performance.

4. Pacing Yourself: If you notice that your symptoms occur during intense exertion, consider pacing yourself during runs to see if this alleviates the symptoms.

5. Stress Management: Since anxiety can exacerbate physical symptoms, incorporating stress-reduction techniques such as deep breathing, meditation, or yoga may help.

6. Keep a Symptom Diary: Document when these symptoms occur, their duration, and any other accompanying symptoms. This information can be invaluable for your healthcare providers.

By taking these steps, you can better understand your symptoms and ensure that both your eye health and cardiovascular health are being appropriately managed.