the Possible Causes of Decreasing Myopia Over Time - Ophthalmology

More Info

---

Hello! Thank you for your question regarding the decrease in myopia over time. It’s quite interesting that you have experienced a reduction in your myopic prescription from over 700 degrees to around 500 degrees in recent years. There are several potential explanations for this phenomenon, and I will outline them below.

1. Natural Changes in the Eye: As people age, their eyes undergo various changes. In some cases, the eye can become less elongated, which may lead to a decrease in myopia. This is particularly relevant if you are in your 40s or older, as this age range is often associated with the onset of presbyopia (the gradual loss of the eye's ability to focus on nearby objects). However, presbyopia typically does not cause a decrease in myopia but rather a need for reading glasses.

2. Changes in Visual Habits: Changes in how you use your eyes can also impact your vision. If you have reduced the amount of time spent on near work (like reading or using screens) and increased your time outdoors, this could contribute to a stabilization or even a reduction in myopia. Studies have shown that increased outdoor activity in children and young adults can help slow the progression of myopia.

3. Eye Health and Medical Conditions: You mentioned a history of eye trauma and that your optic nerve is being monitored for glaucoma. While these conditions can lead to various visual changes, they typically do not cause a decrease in myopia. However, if there has been any structural change in the eye due to previous trauma, it could potentially affect your vision. It’s important to continue monitoring your eye health with your ophthalmologist.

4. Measurement Variability: It’s also worth considering that variations in measurement techniques or equipment could lead to differences in recorded prescriptions. Different optometrists or ophthalmologists may use different methods or instruments, which could result in slight discrepancies in your prescription over time.

5. Corneal Changes: Changes in the cornea, such as flattening or changes in curvature, can also affect refractive error. Conditions like keratoconus or corneal scarring can lead to changes in vision, but these are usually associated with other symptoms.

6. Potential for Eye Conditions: While you mentioned concerns about eye shrinkage, it’s essential to clarify that significant eye shrinkage is not common and is usually associated with severe medical conditions. If you have concerns about your eye health, it’s crucial to discuss them with your eye care provider.

In conclusion, while it is not typical for myopia to decrease significantly, various factors could contribute to your situation. It is essential to maintain regular check-ups with your ophthalmologist to monitor your eye health and address any concerns you may have. If you are experiencing any new symptoms or changes in your vision, do not hesitate to seek medical advice. Your eye health is paramount, and staying informed about your condition will help you manage it effectively. Thank you for your question, and I wish you the best in your eye health journey!