American journal of ophthalmology · 2026
Recurrence of Hypertropia in Sagging Eye Syndrome.
СтатьяНазвание и аннотация: Перевод в очереди
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Nunziata Sebastiano, Yehezkeli Veronika, Parunakian Emanuil, Demer Joseph L
Аннотация
OBJECTIVE: This study aimed characterized evolution of surgical outcomes treating hypertropia in sagging eye syndrome (SES).
DESIGN: Retrospective interventional case series at a single center.
PARTICIPANTS: Patients (mean age 71 years, 62 males) undergoing strabismus surgery for hypertropia caused by SES, having at least 1 month of postoperative follow-up.
METHODS: Time-to-event analysis estimated cumulative recurrence and overcorrection. Multivariable logistic regression evaluated predictors.
MAIN OUTCOME MEASURES: Hypertropia recurrence, motor alignment success at follow-up, degree of hypertropia correction, and incidence of recurrence and overcorrection.
RESULTS: In 128 patients, strabismus surgery immediately reduced average hypertropia in distant, central gaze from 4.0±2.8Δ preoperatively to 0.6±2.8Δ postoperatively (p<0.001). Despite initial correction, at final follow-up 769 ±867 days after surgery 39 (31%) patients exhibited symptomatic hypertropia. This included 32 patients (25%) who had recurrence of original hypertropia, and 7 (6%) due to overcorrection. Recurrences accrued gradually over time without an early plateau, and had no significant demographic or clinical associations. After adjustment for preoperative hypertropia, graded vertical rectus tenotomy and vertical rectus muscle recession exhibited similar recurrence risk (p = 0.110), while magnitude of preoperative hypertropia itself was not associated with overcorrection (odds radio 1.15, p = 0.264).
CONCLUSIONS: Strabismus surgery effectively corrects hypertropia caused by SES, yet after about two years, roughly a quarter of patients develop delayed recurrent hypertropia, consistent with the progressive degenerative pathophysiology of SES. Surgical overcorrections are uncommon and may be overestimated due to compensatory progressive SES changes in the fellow eye.
DESIGN: Retrospective interventional case series at a single center.
PARTICIPANTS: Patients (mean age 71 years, 62 males) undergoing strabismus surgery for hypertropia caused by SES, having at least 1 month of postoperative follow-up.
METHODS: Time-to-event analysis estimated cumulative recurrence and overcorrection. Multivariable logistic regression evaluated predictors.
MAIN OUTCOME MEASURES: Hypertropia recurrence, motor alignment success at follow-up, degree of hypertropia correction, and incidence of recurrence and overcorrection.
RESULTS: In 128 patients, strabismus surgery immediately reduced average hypertropia in distant, central gaze from 4.0±2.8Δ preoperatively to 0.6±2.8Δ postoperatively (p<0.001). Despite initial correction, at final follow-up 769 ±867 days after surgery 39 (31%) patients exhibited symptomatic hypertropia. This included 32 patients (25%) who had recurrence of original hypertropia, and 7 (6%) due to overcorrection. Recurrences accrued gradually over time without an early plateau, and had no significant demographic or clinical associations. After adjustment for preoperative hypertropia, graded vertical rectus tenotomy and vertical rectus muscle recession exhibited similar recurrence risk (p = 0.110), while magnitude of preoperative hypertropia itself was not associated with overcorrection (odds radio 1.15, p = 0.264).
CONCLUSIONS: Strabismus surgery effectively corrects hypertropia caused by SES, yet after about two years, roughly a quarter of patients develop delayed recurrent hypertropia, consistent with the progressive degenerative pathophysiology of SES. Surgical overcorrections are uncommon and may be overestimated due to compensatory progressive SES changes in the fellow eye.