PMID- 26427424 OWN - NLM STAT- MEDLINE DCOM- 20160418 LR - 20220408 IS - 0065-2598 (Print) IS - 0065-2598 (Linking) VI - 854 DP - 2016 TI - Interpretation of Flood-Illuminated Adaptive Optics Images in Subjects with Retinitis Pigmentosa. PG - 291-7 LID - 10.1007/978-3-319-17121-0_39 [doi] AB - The purpose of this study was to correlate features on flood-illuminated adaptive optics (AO) images with color fundus, fundus autofluorescence (FAF) and spectral domain optical coherence tomography (SD-OCT) images in patients with retinitis pigmentosa (RP). We imaged 39 subjects diagnosed with RP using the rtx1 flood-illuminated AO camera from Imagine Eyes (Orsay, France). We observed a correlation between hyper-autofluoresence changes on FAF, disruption of the interdigitation zone (IZ) on SD-OCT and loss of reflective cone profiles on AO. Four main patterns of cone-reflectivity were seen on AO: presumed healthy cone mosaics, hypo-reflective blurred cone-like structures, higher frequency disorganized hyper-reflective spots, and lower frequency hypo-reflective spots. These regions were correlated to progressive phases of cone photoreceptor degeneration observed using SD-OCT and FAF. These results help provide interpretation of en face images obtained by flood-illuminated AO in subjects with RP. However, significant ambiguity remains as to what truly constitutes a cone, especially in areas of degeneration. With further refinements in technology, flood illuminated AO imaging has the potential to provide rapid, standardized, longitudinal and lower cost imaging in patients with retinal degeneration. FAU - Gale, Michael J AU - Gale MJ AD - Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, 97239, Portland, OR, USA. galem@ohsu.edu. FAU - Feng, Shu AU - Feng S AD - Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, 97239, Portland, OR, USA. feng@ohsu.edu. FAU - Titus, Hope E AU - Titus HE AD - Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, 97239, Portland, OR, USA. hopeetitus@gmail.com. FAU - Smith, Travis B AU - Smith TB AD - Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, 97239, Portland, OR, USA. smittrav@ohsu.edu. FAU - Pennesi, Mark E AU - Pennesi ME AD - Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, 97239, Portland, OR, USA. LA - eng GR - K08EY02118601/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Adv Exp Med Biol JT - Advances in experimental medicine and biology JID - 0121103 RN - 0 (Lipofuscin) SB - IM MH - Fluorescence MH - Humans MH - Lipofuscin/chemistry/metabolism MH - Microscopy, Confocal/methods MH - Ophthalmoscopy/*methods MH - Reproducibility of Results MH - Retina/*pathology MH - Retinal Cone Photoreceptor Cells/pathology MH - Retinal Pigment Epithelium/chemistry/metabolism/pathology MH - Retinitis Pigmentosa/*diagnosis MH - Sensitivity and Specificity MH - Tomography, Optical Coherence/*methods OTO - NOTNLM OT - Cone photoreceptors OT - Flood OT - Illuminated adaptive optics OT - Multimodal imaging OT - Retinal degeneration OT - Retinitis pigmentosa EDAT- 2015/10/03 06:00 MHDA- 2016/04/19 06:00 CRDT- 2015/10/03 06:00 PHST- 2015/10/03 06:00 [entrez] PHST- 2015/10/03 06:00 [pubmed] PHST- 2016/04/19 06:00 [medline] AID - 10.1007/978-3-319-17121-0_39 [doi] PST - ppublish SO - Adv Exp Med Biol. 2016;854:291-7. doi: 10.1007/978-3-319-17121-0_39.