Strabismus
Hello Doctor: I have a question I would like to ask.
I found some information online regarding strabismus surgery.
Some sources state that strabismus surgery can be performed multiple times, and if the correction angle is not ideal or if strabismus recurs, further surgery can be done for correction.
However, other sources suggest that if the condition remains unsatisfactory after two or three surgeries, it is better not to attempt further surgical correction.
Based on your experience, which statement do you find more credible, and what is the reasoning behind it? Additionally, could you please explain what factors might lead to the failure of strabismus surgery? Thank you very much!
kimula, 20~29 year old female. Ask Date: 2005/11/11
Dr. Liu Jingxian reply Ophthalmology
Hello Sir: When the visual axes of both eyes are not parallel and cannot focus on the same target, it is referred to as strabismus.
Strabismus is caused by the misalignment of the extraocular muscles, which are primarily controlled by the brain; therefore, it is generally believed that there is a close relationship between the brain and the occurrence of strabismus.
Depending on the direction of deviation, strabismus can be classified into esotropia, exotropia, and vertical strabismus, with esotropia and exotropia being the most common.
Ophthalmologists will provide different treatments for strabismus based on the type of strabismus and the clinical symptoms of the patient, including glasses, prism therapy, medication, vision therapy, or surgical intervention, to help patients restore normal alignment.
The corrective effect of strabismus surgery may vary due to individual differences in patients, leading to some variability in postoperative outcomes.
Generally, after a thorough examination to confirm the type and angle of strabismus, if the deviation angle remains stable during follow-up, the surgical results are usually quite favorable.
Communication before and after surgery is very important.
If there is still a slight angle (less than 15 prism diopters) postoperatively that causes diplopia discomfort, wearing glasses to correct this minor angle can be considered.
In the long term, if the residual angle is greater than 15 prism diopters and remains stable during follow-up, re-surgery can be one of the options to consider.
If the visual function of the eye undergoing strabismus surgery is very poor, even if the initial surgical results are good, there is still a high chance that the eye will experience misalignment again afterward.
If you have any further questions, please feel free to visit the ophthalmology department at the United Hospital.
Wishing you good health.
Taiwan e-Academy, Department of Ophthalmology, Taipei City Hospital, Zhongxing Branch, Dr.
Liu Jingxi.
Reply Date: 2005/11/11
More Info
Strabismus surgery, commonly referred to as eye muscle surgery, is a procedure aimed at correcting misalignment of the eyes. The question of how many times this surgery can be performed is nuanced and depends on several factors, including the underlying cause of the strabismus, the specific surgical techniques used, and the individual patient's response to previous surgeries.
In general, strabismus surgery can be performed multiple times. Many patients may require more than one surgery to achieve optimal alignment, especially if the initial surgery does not fully correct the misalignment or if the strabismus recurs over time. The success of each subsequent surgery can vary, and while some patients may achieve satisfactory results with multiple procedures, others may not see significant improvement after a certain point.
The rationale behind the differing opinions on the number of surgeries lies in the complexity of strabismus. Each case is unique, and factors such as the type of strabismus (congenital, acquired, or secondary to other conditions), the age of the patient, and the presence of other ocular or systemic issues can influence outcomes. For instance, congenital strabismus may be more challenging to correct than acquired strabismus, which can sometimes be linked to a specific event or condition.
There are several reasons why strabismus surgery might not achieve the desired results, leading to the need for additional procedures. These include:
1. Muscle Imbalance: The eye muscles may not be perfectly balanced after the initial surgery, leading to residual misalignment. This can occur if the surgical adjustments made to the muscles do not adequately account for the strength and function of the remaining muscles.
2. Scar Tissue Formation: After surgery, scar tissue can form around the eye muscles, potentially affecting their movement and leading to a recurrence of strabismus.
3. Changes in Vision: If a patient experiences changes in vision, such as the development of cataracts or other eye conditions, this can affect the alignment of the eyes and necessitate further surgical intervention.
4. Growth and Development: In children, the growth of the eye and surrounding structures can lead to changes in alignment over time, which may require additional surgeries as they grow.
5. Patient Compliance: Post-operative care, including adherence to prescribed eye exercises or follow-up appointments, plays a crucial role in the success of the surgery. Non-compliance can lead to suboptimal outcomes.
In terms of the credibility of the statements regarding the number of surgeries, it is essential to consult with an experienced ophthalmologist or strabismus specialist. They can provide personalized recommendations based on the specific characteristics of the strabismus and the patient's overall health.
Ultimately, while multiple surgeries can be performed, the decision to proceed with additional surgeries should be made carefully, weighing the potential benefits against the risks and the likelihood of achieving a satisfactory outcome. Each case should be evaluated individually, and a thorough discussion with a healthcare provider is crucial to determine the best course of action.
In conclusion, strabismus surgery can indeed be performed multiple times, but the decision to do so should be based on a comprehensive assessment of the patient's condition and previous surgical outcomes. Understanding the reasons for potential failures and the factors influencing surgical success can help guide patients and their families in making informed decisions about their treatment options.
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