Objective: To evaluate long-term anatomic and visual outcomes of primary surgical repair for rhegmatogenous retinal detachment (RRD) in young adult patients and to identify factors associated with visual and anatomic success.
Design: Retrospective cohort study.
Participants: 238 patients (median age 26.6 years, 45.4% male, 54.6% female).
Methods: Patients from a single tertiary academic medical center undergoing primary RRD repair between January 1, 2010, and August 1, 2024, were reviewed. Demographic data, pre-operative risk factors and examination, surgical technique, post-operative visual outcomes, single surgery anatomic reattachment rates both at 12 months and at most recent evaluation, and fellow-eye outcomes were recorded. Continuous variables were compared using analysis of variance or independent t tests, and categorical variables were compared using chi-square testing. Kaplan-Meier survival analysis assessed durability of single-surgery success and cumulative risk of fellow-eye intervention.
Main outcome measures: Single-surgery anatomic success at 12 months, additional retinal reattachment surgery, and fellow-eye intervention.
Results: Among 238 eligible patients (median age, 26.6 years; median follow-up, 42.3 months), primary scleral buckle (SB) was performed in 71.8%, combined pars plana vitrectomy/scleral buckle (PPV/SB) in 25.6%, and primary vitrectomy (PPV) in 2.1%. Overall single-surgery success at 12 months was 80.3% (82.4% for SB, 75.4% for PPV/SB, 80.0% for PPV; p=0.45). Median BCVA improved from 0.301 logMAR (≈20/40) preoperatively to 0.176 logMAR (≈20/30) at both 12 months and at final follow-up (p<0.05). Primary scleral buckle (odds ratio 4.30; 95% CI 2.33-7.92) and macula-on status (odds ratio 9.31, 95% CI 4.99-17.36) were independently associated with achieving BCVA ≤20/40. Kaplan-Meier analysis demonstrated that most anatomic failures occurred within the first postoperative year, with sustained stability through 15 years. Fellow-eye intervention occurred in 26.9% of patients during follow-up.
Conclusions: In young adults with RRD, primary surgical repair yields favorable long-term anatomic and visual outcomes, with failures clustering early after surgery. Primary scleral buckling remains an effective approach in this population. Ongoing fellow-eye surveillance is warranted given the cumulative risk of subsequent intervention.

