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Velaga SB, Alagorie AR, Emamverdi M, Ashrafkhorasani M, Habibi A, Nittala MG, Sing G, Haines J, Pericak-Vance MA, Stambolian D, Sadda SR. Alterations of the Ganglion Cell Complex in Age-Related Macular Degeneration: An Amish Eye Study Analysis. Am J Ophthalmol 2024; 265:80-87. [PMID: 38677638 DOI: 10.1016/j.ajo.2024.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 04/02/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
PURPOSE To compare the ganglion cell complex (GCC) thickness in eyes with age-related macular degeneration (AMD) vs healthy controls in an elderly Amish population. DESIGN Prospective cross-sectional study. METHODS This is a post hoc analysis of the family-based prospective study of Amish subjects. Study subjects underwent imaging with the Cirrus HD-OCT (Carl Zeiss Meditec Inc) using a macular cube protocol of 512 × 128 scans (128 horizontal B-scans, each comprising 512 A-scans) over a 6 mm × 6 mm region centered on the fovea. The ganglion cell analysis algorithm calculated the GCC thickness by segmenting the outer boundaries of the retinal nerve fiber layer (RNFL) and inner plexiform layer (IPL) in all B-scans of the volume, with the region between these boundaries representing the combined thickness of the ganglion cell layer (GCL) and the IPL. A number of parameters were used to evaluate the GCC thickness: the average GCC thickness, minimum (lowest GCC thickness at a single meridian crossing the elliptical annulus), and sectoral (within each of 6 sectoral areas: superior, superotemporal, superonasal, inferior, inferonasal, and inferotemporal). The stage of AMD was graded on color fundus photographs in accordance with the Beckman Initiative for Macular Research classification system. RESULTS Of 1339 subjects enrolled in the Amish eye study, a total of 1294 eyes of 1294 subjects had all required imaging studies of sufficient quality and were included in the final analysis. Of these, 798 (62%) were female. Following age adjustment, the average GCC thickness was significantly (P < .001) thinner in AMD subjects (73.71 ± SD; 13.77 µm) compared to normals (77.97 ± 10.42 µm). An independent t test showed that the early AMD (75.03 ± 12.45 µm) and late AMD (61.64 ± 21.18 µm) groups (among which eyes with geographic atrophy [GA] had the lowest thickness, of 58.10 ± 20.27 µm) had a statistically significant lower GCC thickness compared to eyes without AMD. There was no significant differences in average GCC thickness between early AMD and intermediate AMD (76.36 ± 9.25 µm) eyes. CONCLUSIONS The GCC thickness in AMD eyes is reduced compared to normal eyes; however, the relationship is complex, with the greatest reduction in late AMD eyes (particularly eyes with GA) but no difference between early and intermediate AMD eyes.
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Affiliation(s)
- Swetha Bindu Velaga
- From the Doheny Eye Institute (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., G.S., S.R.S.), University of California-Los Angeles, Los Angeles, California, USA; Department of Ophthalmology (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., S.R.S.), David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Ahmed Roshdy Alagorie
- From the Doheny Eye Institute (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., G.S., S.R.S.), University of California-Los Angeles, Los Angeles, California, USA; Department of Ophthalmology (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., S.R.S.), David Geffen School of Medicine at UCLA, Los Angeles, CA, USA; Department of Ophthalmology (A.R.A.), Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mehdi Emamverdi
- From the Doheny Eye Institute (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., G.S., S.R.S.), University of California-Los Angeles, Los Angeles, California, USA; Department of Ophthalmology (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., S.R.S.), David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Maryam Ashrafkhorasani
- From the Doheny Eye Institute (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., G.S., S.R.S.), University of California-Los Angeles, Los Angeles, California, USA; Department of Ophthalmology (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., S.R.S.), David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Abbas Habibi
- From the Doheny Eye Institute (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., G.S., S.R.S.), University of California-Los Angeles, Los Angeles, California, USA; Department of Ophthalmology (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., S.R.S.), David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Muneeswar Gupta Nittala
- From the Doheny Eye Institute (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., G.S., S.R.S.), University of California-Los Angeles, Los Angeles, California, USA; Department of Ophthalmology (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., S.R.S.), David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Gagan Sing
- From the Doheny Eye Institute (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., G.S., S.R.S.), University of California-Los Angeles, Los Angeles, California, USA; Department of Ophthalmology (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., S.R.S.), David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Jonathan Haines
- Department of Population & Quantitative Health Sciences (J.H.), Case Western Reserve University, Cleveland, Ohio, USA; Institute for Computational Biology (J.H.), Case Western Reserve University, Cleveland, Ohio, USA
| | - Margaret A Pericak-Vance
- John P. Hussman Institute for Human Genomics (M.A.P.-V), University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Dwight Stambolian
- Department of Ophthalmology (D.S.), University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Srinivas R Sadda
- From the Doheny Eye Institute (S.B.V., A.R.A., M.E., M.A., A.H., M.G.N., G.S., S.R.S.), University of California-Los Angeles, Los Angeles, California, USA.
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Abdolrahimzadeh S, Di Pippo M, Sordi E, Zweifel SA. Inner Retinal Layer Thickness Alterations in Early Age Related Macular Degeneration in Eyes with Subretinal Drusenoid Deposits or Conventional Drusen. J Clin Med 2021; 10:jcm10215136. [PMID: 34768654 PMCID: PMC8584863 DOI: 10.3390/jcm10215136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/26/2021] [Accepted: 10/29/2021] [Indexed: 11/16/2022] Open
Abstract
The purpose of this study was to evaluate central and parafoveal inner retinal layer thickness in patients with subretinal drusenoid deposits (SDD) or conventional drusen (CD). Participants underwent comprehensive ophthalmoscopic examination. Evidence of SDD or CD was evaluated with near infrared reflectance and spectral domain optical coherence tomography. Quantification of subfoveal lesions was made through a qualitative analysis of vertical and horizontal SD-OCT scans centered on the fovea. Inner retinal layer macular thickness measurements were obtained for central circles with 1, 3, and 5 mm diameter. Continuous variables were compared by the analysis of covariance (ANCOVA) with post-hoc Tukey HSD correction for multiple comparison analysis. Fifty-five patients were included in the study; 18 eyes with SDD alone, 19 eyes with CD alone, and 18 eyes of healthy age-matched subjects. Eight eyes with SDD (44%) and 13 eyes with CD (68%) had subfoveal lesions. There was significant reduction in the inner retinal layer thickness in the central 1mm area and in the superior 3 mm area in the SDD and CD group compared to controls. In conclusion the inner retinal layer is thinner in the central macula and in the superior parafovea in eyes.
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Affiliation(s)
- Solmaz Abdolrahimzadeh
- Ophthalmology Unit, Neurosciences, Mental Health, and Sense Organs (NESMOS) Department, Faculty of Medicine and Psychology, University of Rome Sapienza, St. Andrea Hospital, Via di Grottarossa 1035/1039, 00189 Rome, Italy; (M.D.P.); (E.S.)
- Correspondence:
| | - Mariachiara Di Pippo
- Ophthalmology Unit, Neurosciences, Mental Health, and Sense Organs (NESMOS) Department, Faculty of Medicine and Psychology, University of Rome Sapienza, St. Andrea Hospital, Via di Grottarossa 1035/1039, 00189 Rome, Italy; (M.D.P.); (E.S.)
| | - Edoardo Sordi
- Ophthalmology Unit, Neurosciences, Mental Health, and Sense Organs (NESMOS) Department, Faculty of Medicine and Psychology, University of Rome Sapienza, St. Andrea Hospital, Via di Grottarossa 1035/1039, 00189 Rome, Italy; (M.D.P.); (E.S.)
| | - Sandrine Anne Zweifel
- Department of Ophthalmology, University Hospital Zurich, Frauenklinikstrasse 24, 8091 Zurich, Switzerland;
- University of Zurich, Rämistrasse 71, 8006 Zurich, Switzerland
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