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Stereopsis in children with fully versus partially accommodative esotropia
Idan Hecht1, Nancy N Diehl2, Brian G Mohney1
1Department of Ophthalmology Mayo Clinic and Mayo Foundation, Rochester, Minnesota.
Summary
Children with fully accommodative esotropia (FAET) achieve better stereoacuity than those with partially accommodative esotropia (PAET). Older age at onset is linked to fine stereopsis in FAET patients.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Strabismus Research
Background:
- Accommodative esotropia is a common form of strabismus in children.
- Distinguishing between fully accommodative esotropia (FAET) and partially accommodative esotropia (PAET) is crucial for treatment planning.
- Stereoacuity is a key indicator of binocular vision function.
Purpose of the Study:
- To compare stereoacuity outcomes between children with FAET and PAET.
- To identify predictors of stereoacuity in these pediatric populations.
Main Methods:
- Retrospective review of medical records for children (<19 years) diagnosed with accommodative esotropia.
- Inclusion criteria: residents of Olmsted County, MN, diagnosed between 1975-1994.
- Data analysis included comparison of stereoacuity, age at diagnosis, and angle of deviation.
Main Results:
- 306 children diagnosed: 244 (79.7%) FAET, 62 (20.3%) PAET.
- PAET patients diagnosed younger (3.6 vs 4.1 years) with larger deviations (distance: 26.0Δ vs 17.3Δ; near: 33.3Δ vs 23.3Δ).
- High-grade stereoacuity (≤60 arcsec) achieved by 35% of FAET vs 14% of PAET (P=0.002) after ~9.8 years follow-up. Older onset age associated with better stereoacuity in FAET.
Conclusions:
- Children with FAET are more likely to present later with smaller deviations and achieve superior stereoacuity compared to PAET.
- Older age at onset is a significant predictor of fine stereopsis in children with FAET.
- These findings aid in understanding prognostic factors for binocular vision in accommodative esotropia.
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