PMID- 26985801 OWN - NLM STAT- MEDLINE DCOM- 20161213 LR - 20161230 IS - 2325-8179 (Electronic) IS - 2325-8160 (Linking) VI - 47 IP - 3 DP - 2016 Mar TI - Multi-Modal Longitudinal Evaluation of Subthreshold Laser Lesions in Human Retina, Including Scanning Laser Ophthalmoscope-Adaptive Optics Imaging. PG - 268-75 LID - 10.3928/23258160-20160229-10 [doi] AB - BACKGROUND AND OBJECTIVE: Subthreshold retinal laser therapy is efficacious for a variety of retinovascular disorders. Currently, it is unknown which laser parameters can ensure no detectable damage to human retina tissue. MATERIALS AND METHODS: One informed physician participant with a normal retina was treated with three levels (75%, 50%, and 25%) of subthreshold 577-nm laser (PASCAL; Topcon, Santa Clara, CA) at 20-millisecond (ms) duration and 100 microm spot size. Several high-resolution retinal imaging modalities, including spectral-domain optical coherence tomography (SD-OCT) and scanning laser ophthalmoscope-adaptive optics (SLO-AO), were used to longitudinally image retinal laser lesions during a 9-month period. RESULTS: SLO-AO and SD-OCT imaging of subthreshold laser therapy in human retina showed no cone cell or RPE damage at all time points during a 9-month period using the 25% threshold power 577-nm laser in the human retina. CONCLUSION: It is likely that subthreshold laser therapy with 577-nm laser at 20-ms duration in the human retina is safe at the 25% of threshold power level. CI - Copyright 2016, SLACK Incorporated. FAU - Wood, Edward H AU - Wood EH FAU - Leng, Theodore AU - Leng T FAU - Schachar, Ira H AU - Schachar IH FAU - Karth, Peter A AU - Karth PA LA - eng PT - Journal Article PL - United States TA - Ophthalmic Surg Lasers Imaging Retina JT - Ophthalmic surgery, lasers & imaging retina JID - 101599215 SB - IM MH - Fluorescein Angiography MH - Humans MH - Laser Coagulation/instrumentation MH - Lasers, Semiconductor/*adverse effects MH - Multimodal Imaging MH - Ophthalmoscopes MH - Photoreceptor Cells, Vertebrate/*pathology MH - Retina/*injuries MH - Retinal Diseases/*diagnostic imaging MH - Tomography, Optical Coherence EDAT- 2016/03/18 06:00 MHDA- 2016/12/15 06:00 CRDT- 2016/03/18 06:00 PHST- 2015/08/29 00:00 [received] PHST- 2016/01/21 00:00 [accepted] PHST- 2016/03/18 06:00 [entrez] PHST- 2016/03/18 06:00 [pubmed] PHST- 2016/12/15 06:00 [medline] AID - 10.3928/23258160-20160229-10 [doi] PST - ppublish SO - Ophthalmic Surg Lasers Imaging Retina. 2016 Mar;47(3):268-75. doi: 10.3928/23258160-20160229-10.