Selective retina therapy (SRT) of chronic subfoveal fluid after surgery of rhegmatogenous retinal detachment: Three case reports

Stefan Koinzer*, Hanno Elsner, Carsten Klatt, Erk Pörksen, Ralf Brinkmann, Reginald Birngruber, Johann Roider

*Corresponding author for this work
26 Citations (Scopus)

Abstract

Background: Shallow subfoveal fluid accumulation after successful surgery for retinal detachment can be the reason for compromised visual acuity. To date, therapeutical options to tackle this problem have not been established. Selective retina therapy (SRT) is a new laser technology that uses a train of μ-laser pulses to selectively damage retinal pigment epithelial (RPE) cells while sparing retinal structures. Methods: We treated three patients with chronic subfoveal fluid accumulation after retinal detachment surgery. The median period between retinal surgery and SRT treatment was 7 months. For SRT, we used a prototype frequency-doubled, Q-switched Nd:YLF laser (λ = 527 nm). Each laser exposition contained 30 pulses (t=1,7 μs, 100 Hz, E=100-400 μJ). Two of the three patients were treated subfoveally. OCT III (optical coherence tomography) examinations were performed to evaluate changes in subretinal fluid accumulation. Results: In all three patients, we observed complete resolution of subfoveal fluid within 1-5 months. Follow-up has been 16 months to 2 years. Visual acuity improved in all patients. In one patient, cystoid macular edema developed 3 months after treatment. Additional SRT treatments were not necessary. Conclusion: SRT is a safe treatment. Visual acuity improved after SRT, even in subfoveal irradiations. SRT is an option to support subretinal fluid reabsorption. In this situation where no other therapeutical options are established, SRT may be a beneficial treatment for chronic subfoveal fluid accumulation after retinal detachment surgery.

Original languageEnglish
JournalGraefe's Archive for Clinical and Experimental Ophthalmology
Volume246
Issue number10
Pages (from-to)1373-1378
Number of pages6
ISSN0721-832X
DOIs
Publication statusPublished - 2008

Research Areas and Centers

  • Academic Focus: Biomedical Engineering

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