Intermittent exotropia surgery: results in different age groups.

Area of Science:

• Ophthalmology
• Pediatric Surgery
• Strabismus Surgery

Background:

• Intermittent exotropia is a common form of strabismus.
• Surgical correction is a primary treatment modality.
• Optimal timing for surgical intervention remains a topic of discussion.

Purpose of the Study:

• To evaluate surgical outcomes for intermittent exotropia.
• To compare outcomes based on age at the time of surgery.
• To assess the relationship between age and motor/sensory success.

Main Methods:

• Retrospective cohort study of 136 patients with intermittent exotropia.
• Patients divided into two groups: surgery before age 4 and surgery at or after age 4.
• Comparison of reoperation rates, motor alignment, and sensory outcomes (stereopsis).

Main Results:

• No significant difference in reoperation rates between the age groups (48% vs. 42%, p=0.93).
• Postoperative stereopsis showed an inverse association with age at surgery (p<0.001).
• Younger age at surgery correlated with worse stereopsis, potentially due to testing immaturity.

Conclusions:

• Surgical correction of intermittent exotropia is safe and effective in children under 4 years old.
• Younger patients may achieve better motor alignment.
• Worse stereopsis in younger children is likely related to test immaturity rather than surgical timing.