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Basic acquired nonaccommodative esotropia patients managed with surgery; a study of 2102 patients
Mohamad Reza Akbari1, Alaa Alghurab2, Elham Azizi3
1Translational Ophthalmology Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran.
Strabismus
|November 20, 2023
Summary
Patients with basic-acquired nonaccommodative esotropia (BANAET) requiring multiple surgeries had higher astigmatism, worse visual acuity, and larger deviation angles preoperatively. These factors indicate a need for more complex surgical management in BANAET cases.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Strabismus Surgery
Background:
- Preoperative clinical features of basic-acquired nonaccommodative esotropia (BANAET) are not well-established, especially concerning surgical outcomes.
- Previous studies had small sample sizes and did not compare features based on the number of surgeries required.
Purpose of the Study:
- To compare preoperative clinical features of BANAET patients managed with one surgery versus those requiring two or more surgeries.
Main Methods:
- A historical cohort study of 2102 Iranian patients with BANAET from 2012-2022.
- Data included sex, age, corrected distance visual acuity (CDVA), refractive error, amblyopia, and angle of deviation.
- Patients were categorized by the number of strabismus surgeries performed.
Main Results:
- Patients needing two or more surgeries had significantly higher horizontal deviation angles and a greater frequency of amblyopia (P < .001).
- Those managed with a single surgery were younger, had better CDVA, lower astigmatism, and less deviation (P < .001).
- 1599 (76.1%) patients needed one surgery, while 342 (16.3%) and 161 (7.6%) required two or three+ surgeries, respectively.
Conclusions:
- Higher preoperative astigmatism, lower CDVA, greater deviation angles, and more frequent amblyopia are associated with BANAET cases requiring multiple surgeries.
- These findings highlight key preoperative indicators for predicting the complexity of BANAET surgical management.

