Efficacy and safety of 20% and 100% autologous serum eye drops in patients with severe dry eye disease: a prospective, blinded, randomized, crossover study
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引用次数: 0
Abstract
Purpose
To evaluate the efficacy and safety of 20% and 100% autologous serum eye drops (ASED), compared to preservative-free artificial tears (PFAT), as a treatment for severe dry eye disease (DED).
Methods
Forty-six patients with severe DED were randomized to receive PFAT, ASED 20% and ASED 100% for 8 weeks in a crossover study design with a 2-week washout period. The Ocular Surface Disease Index (OSDI) questionnaire was used as primary outcome measure. Secondary outcomes were non-invasive tear break-up time (tBUT), best-corrected visual acuity, Schirmer 1 test, ocular surface staining (OSS) using the Sjögren's International Collaborative Clinical Alliance (SICCA) OSS score, tBUT, conjunctival injection score and Meibomian gland dysfunction grading. Additionally, serum and tear cytokine analysis and microbiological cultures were performed.
Results
Mean improvement in OSDI-score compared to baseline was 3.0 for PFAT (p = 0.35), 12.3 for ASED 20% (p < 0.001) and 19.5 for ASED 100% (p < 0.001). Mean improvement in SICCA OSS was 0.96 for PFAT (p = 0.002), 1.63 for ASED 20% (p < 0.001) and 1.95 for ASED 100% (p < 0.001). No significant differences between treatments were found for all other secondary outcomes. Cultures were positive in more than half of the PFAT and ASED vials, with the majority containing commensal flora. Analysis of tear cytokines suggested that ASED promotes a less inflammatory ocular environment than PFAT.
Conclusions
ASED 100% provided the greatest improvement in OSDI and SICCA OSS scores compared to baseline, supporting the clinical value of higher concentrations of autologous serum.
期刊介绍:
The Ocular Surface, a quarterly, a peer-reviewed journal, is an authoritative resource that integrates and interprets major findings in diverse fields related to the ocular surface, including ophthalmology, optometry, genetics, molecular biology, pharmacology, immunology, infectious disease, and epidemiology. Its critical review articles cover the most current knowledge on medical and surgical management of ocular surface pathology, new understandings of ocular surface physiology, the meaning of recent discoveries on how the ocular surface responds to injury and disease, and updates on drug and device development. The journal also publishes select original research reports and articles describing cutting-edge techniques and technology in the field.
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