PMID- 28973322 OWN - NLM STAT- MEDLINE DCOM- 20171006 LR - 20211028 IS - 1552-5783 (Electronic) IS - 0146-0404 (Print) IS - 0146-0404 (Linking) VI - 58 IP - 11 DP - 2017 Sep 1 TI - Intraretinal Correlates of Reticular Pseudodrusen Revealed by Autofluorescence and En Face OCT. PG - 4769-4777 LID - 10.1167/iovs.17-22338 [doi] AB - PURPOSE: We sought to determine whether information revealed from the reflectance, autofluorescence, and absorption properties of RPE cells situated posterior to reticular pseudodrusen (RPD) could provide insight into the origins and structure of RPD. METHODS: RPD were studied qualitatively by near-infrared fundus autofluorescence (NIR-AF), short-wavelength fundus autofluorescence (SW-AF), and infrared reflectance (IR-R) images, and the presentation was compared to horizontal and en face spectral domain optical coherence tomographic (SD-OCT) images. Images were acquired from 23 patients (39 eyes) diagnosed with RPD (mean age 80.7 +/- 7.1 [SD]; 16 female; 4 Hispanics, 19 non-Hispanic whites). RESULTS: In SW-AF, NIR-AF, and IR-R images, fundus RPD were recognized as interlacing networks of small scale variations in IR-R and fluorescence (SW-AF, NIR-AF) intensities. Darkened foci of RPD colocalized in SW-AF and NIR-AF images, and in SD-OCT images corresponded to disturbances of the interdigitation (IZ) and ellipsoid (EZ) zones and to more pronounced hyperreflective lesions traversing photoreceptor-attributable bands in SD-OCT images. Qualitative assessment of the outer nuclear layer (ONL) revealed thinning as RPD extended radially from the outer to inner retina. In en face OCT, hyperreflective areas in the EZ band correlated topographically with hyporeflective foci at the level of the RPE. CONCLUSIONS: The hyperreflective lesions corresponding to RPD in SD-OCT scans are likely indicative of degenerating photoreceptor cells. The darkened foci at positions of RPD in NIR-AF and en face OCT images indicate changes in the RPE monolayer with the reduced NIR-AF and en face OCT signal suggesting a reduction in melanin that could be accounted for by RPE thinning. FAU - Paavo, Maarjaliis AU - Paavo M AD - Department of Ophthalmology, Columbia University Medical Center, New York, New York, United States. FAU - Lee, Winston AU - Lee W AD - Department of Ophthalmology, Columbia University Medical Center, New York, New York, United States. FAU - Merriam, John AU - Merriam J AD - Department of Ophthalmology, Columbia University Medical Center, New York, New York, United States. FAU - Bearelly, Srilaxmi AU - Bearelly S AD - Department of Ophthalmology, Columbia University Medical Center, New York, New York, United States. FAU - Tsang, Stephen AU - Tsang S AD - Department of Ophthalmology, Columbia University Medical Center, New York, New York, United States. AD - Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, United States. FAU - Chang, Stanley AU - Chang S AD - Department of Ophthalmology, Columbia University Medical Center, New York, New York, United States. FAU - Sparrow, Janet R AU - Sparrow JR AD - Department of Ophthalmology, Columbia University Medical Center, New York, New York, United States. AD - Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, United States. LA - eng GR - P30 EY019007/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 - Invest Ophthalmol Vis Sci JT - Investigative ophthalmology & visual science JID - 7703701 SB - IM CIN - Invest Ophthalmol Vis Sci. 2017 Dec 1;58(14 ):6193. PMID: 29222546 CIN - Invest Ophthalmol Vis Sci. 2017 Dec 1;58(14 ):6194. PMID: 29222547 MH - Aged MH - Aged, 80 and over MH - Female MH - Fluorescein Angiography/*methods MH - Fundus Oculi MH - Humans MH - Macular Degeneration/*diagnostic imaging MH - Male MH - Middle Aged MH - Optical Imaging/methods MH - Retinal Drusen/*diagnostic imaging MH - Retinal Pigment Epithelium/*diagnostic imaging MH - Tomography, Optical Coherence/*methods PMC - PMC5624777 EDAT- 2017/10/04 06:00 MHDA- 2017/10/07 06:00 PMCR- 2017/10/01 CRDT- 2017/10/04 06:00 PHST- 2017/10/04 06:00 [entrez] PHST- 2017/10/04 06:00 [pubmed] PHST- 2017/10/07 06:00 [medline] PHST- 2017/10/01 00:00 [pmc-release] AID - 2655024 [pii] AID - IOVS-17-22338 [pii] AID - 10.1167/iovs.17-22338 [doi] PST - ppublish SO - Invest Ophthalmol Vis Sci. 2017 Sep 1;58(11):4769-4777. doi: 10.1167/iovs.17-22338.