Beyond Vision: Prospective Real-World Evaluation of Quality-of-Life and Caregiver Burden in Diabetic Macular Edema Treated with Fluocinolone Acetonide (Iluvien®)
摘要
Diabetic macular edema (DME) imposes a substantial clinical and psychosocial burden on patients and caregivers due to frequent visits and intravitreal treatments. The fluocinolone acetonide intravitreal implant (Iluvien®) offers sustained drug delivery for up to 3 years. We assessed its real-world impact on vision, macular anatomy, intraocular pressure (IOP), quality of life (QoL), and treatment burden, including caregiver impact.
MethodsProspective, real-world observational study of 41 patients with previously treated DME. Assessments occurred at baseline and at 6, 12, 18, 24, and 30 months. Outcomes included best-corrected visual acuity (BCVA), central macular thickness (CMT), IOP, and National Eye Institute Visual Function Questionnaire-25 (NEI VFQ-25) composite scores. Burden metrics included clinic visits per year and caregiver accompaniment/absenteeism.
ResultsAt baseline, mean BCVA was 0.42 ± 0.30 logMAR, CMT 415.8 ± 106.5 µm, IOP 16.6 ± 4.1 mmHg, and NEI VFQ-25 67.6 ± 16.4; 46.3% of patients required caregiver accompaniment, and 61% reported pre-injection anxiety (median duration 2 days). At last follow-up, mean BCVA improved to 0.29 ± 0.26 logMAR (≈+6–7 ETDRS letters; p < 0.001), CMT decreased to 368.1 ± 79.6 µm (p = 0.002), and IOP remained stable at 16.7 ± 4.1 mmHg. The NEI VFQ-25 increased to 77.0 ± 18.0, with a significant main effect of time (repeated-measures analysis of variance (ANOVA), p = 0.001; partial η2 = 0.675); improvements were evident by 6 months and sustained through 30 months (all comparisons p < 0.05). Clinic visits declined from 5.8 ± 1.6 to 3.7 ± 1.5 per year (p < 0.001).
ConclusionsIn a prospective real-world setting, Iluvien was associated with durable improvements in vision, macular anatomy, and QoL, with stable IOP. Treatment reduced the frequency of clinic visits and procedures, alleviating patient burden and caregiver absenteeism. These findings support Iluvien as a patient-centered, long-acting therapy for chronic DME and motivate multicenter validation and health-economic studies that incorporate caregiver outcomes.