Is it advisable to undergo strabismus surgery for a deviation of nearly 400 degrees?
Hello, doctor.
I have had alternating exotropia since childhood, and I am considering surgery.
However, I have seen many cases that say if the eyes cannot achieve proper fusion post-surgery, the condition may relapse quickly.
I do not have amblyopia, but I have been using my right eye more often, resulting in a higher degree of myopia in my right eye, which is about -6.00 diopters, compared to my left eye, which is about -2.50 diopters.
When I went to get glasses, the optometrist said it is not advisable to correct both eyes to the same level of vision, as this could lead to dizziness.
However, if I maintain a disparity in vision, will this cause difficulties in binocular fusion? Even if I undergo surgery to correct the strabismus, will it still revert back to the original condition? Is there any way, aside from laser vision correction, to improve the vision in both eyes to a level that prevents the strabismus from returning without affecting my daily life?
A-K, 20~29 year old female. Ask Date: 2022/06/09
Dr. Gao Pilin reply Ophthalmology
Hello, A-K: Whether surgery is appropriate may require consultation with a surgeon.
As for the 400-degree difference between the two eyes, if suitable glasses are prescribed, it is unlikely to cause issues with fusion or lead to a recurrence of symptoms.
Reply Date: 2022/06/09
More Info
Strabismus surgery, particularly for a deviation of 400 degrees, is a significant consideration and should be approached with careful evaluation and planning. Strabismus, or misalignment of the eyes, can lead to various visual issues, including double vision and difficulties with depth perception. In your case, the fact that you have alternating exotropia (outward turning of the eyes) and a significant difference in refractive error between your two eyes adds complexity to the situation.
Firstly, it’s important to understand that strabismus surgery aims to align the eyes to improve binocular vision and aesthetic appearance. However, the success of the surgery can depend on several factors, including the degree of deviation, the presence of any underlying conditions, and the overall health of the eyes. In your case, a 400-degree deviation is quite substantial, and while surgery may be recommended, it is crucial to have a thorough pre-operative assessment by a qualified ophthalmologist or strabismus specialist.
Regarding your concern about the potential for recurrence of strabismus after surgery, it is true that if the underlying issues contributing to the misalignment are not addressed, there is a risk of the eyes reverting to their previous position. This is particularly relevant in cases where there is a significant difference in visual acuity between the two eyes, as you mentioned with your right eye being more myopic than the left. The brain may favor the eye with better vision, which can complicate the post-surgical outcome.
In terms of visual acuity and the potential for achieving similar vision in both eyes, there are a few options to consider. While laser vision correction (like LASIK) may help to equalize the refractive error, it is not always suitable for everyone, especially if there are other underlying issues such as keratoconus or significant dry eye. Additionally, achieving equal vision does not guarantee that the eyes will maintain proper alignment post-surgery.
If you are concerned about the possibility of developing difficulties with binocular vision post-surgery, it may be beneficial to explore vision therapy or orthoptic training. These approaches can help improve the coordination between the eyes and may enhance the chances of successful alignment after surgical intervention.
Ultimately, the decision to proceed with strabismus surgery should involve a detailed discussion with your eye care provider. They can provide insights into the potential risks and benefits, the likelihood of achieving your desired outcomes, and alternative treatment options that may be available. It is also advisable to seek a second opinion if you feel uncertain about the recommendations provided.
In summary, strabismus surgery may be a viable option for correcting a 400-degree deviation, but careful consideration of your unique visual circumstances is essential. Addressing any refractive errors, understanding the potential for recurrence, and exploring additional therapies can help you make an informed decision that aligns with your visual goals and lifestyle.
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