1
|
Habibi A, Ashrafkhorasani M, Santina A, Emamverdi M, Corradeti G, Abbasgholizadeh R, Nittala MG, Freund KB, Sarraf D, Sadda SR. Evaluating fingerprint-like patterns in the healthy Henle fiber layer using enface OCT imaging. Exp Eye Res 2024; 245:109979. [PMID: 38909669 DOI: 10.1016/j.exer.2024.109979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/06/2024] [Accepted: 06/20/2024] [Indexed: 06/25/2024]
Abstract
PURPOSE Enface OCT may disclose a distinct "fingerprint-like' pattern within the HFL in various macular disorders. This study aims to investigate the frequency and characteristics of this pattern in healthy eyes and identify potential factors influencing its visibility. METHODS Two, independent masked reading center graders evaluated for the presence and prominence of a fingerprint pattern in the Henle fiber layer (HFL) on enface OCT images from 33 healthy subjects (66 eyes). The prominence of the pattern was rated qualitatively using a 0-3 scale, with 3 indicating the strongest prominence. Tilt angles (relative to the normal/perpendicular at the center) of the retina were measured on horizontal and vertical B-scans, and the retinal curvature was assessed using ImageJ, in order to determine the impact of the incident light angle on the visibility and prominence of the fingerprint pattern. Inter-grader agreement using Cohen's kappa and the frequency and percentage of patterns in the entire enface image and in each quadrant were calculated and compared using the Friedman test with Dunn's post-test. A generalized estimating equation (GEE) was used to analyze the association between these metrics and fingerprint prominence. RESULTS Substantial inter-grader agreement was observed (Cohen's kappa = 0.71) for assessing the prominence of the fingerprint pattern. Over 70% of eyes exhibited some evidence of the pattern (score ≥1). Significant difference in pattern prominence across quadrants was detected (p < 0.05), with lowest prominence in the temporal quadrant (p < 0.001 for pairwise comparisons against all other quadrants). The GEE analysis to account for the extent of the effect of scan tilt angle and RPE curvature was not able to predict the prominence of the fingerprint pattern, highlighting that angle of incidence (of the scanning laser light) alone could not explain the pattern. CONCLUSIONS This study confirms that a fingerprint-like pattern within the HFL can also be observed in healthy eyes, challenging the notion that this finding is only manifest in the setting of disease. In addition, the lack of correlation with angle of incident light suggests that the pattern may be related to other intrinsic characteristics of the HFL.
Collapse
Affiliation(s)
- Abbas Habibi
- Department of Ophthalmology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA; Doheny Image Reading and Research Laboratory, Doheny Eye Institute, Pasadena, CA, USA
| | - Maryam Ashrafkhorasani
- Department of Ophthalmology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA; Doheny Image Reading and Research Laboratory, Doheny Eye Institute, Pasadena, CA, USA
| | - Ahmad Santina
- Retinal Disorders and Ophthalmic Genetics Division, Stein Eye Institute, University of California Los Angeles, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Mehdi Emamverdi
- Department of Ophthalmology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA; Doheny Image Reading and Research Laboratory, Doheny Eye Institute, Pasadena, CA, USA
| | - Giulia Corradeti
- Department of Ophthalmology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA; Doheny Image Reading and Research Laboratory, Doheny Eye Institute, Pasadena, CA, USA
| | - Rouzbeh Abbasgholizadeh
- Department of Ophthalmology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA; Doheny Image Reading and Research Laboratory, Doheny Eye Institute, Pasadena, CA, USA
| | - Muneeswar G Nittala
- Doheny Image Reading and Research Laboratory, Doheny Eye Institute, Pasadena, CA, USA
| | - K Bailey Freund
- NYU Grossman School of Medicine, New York, NY, USA; Vitreous Retina Macula Consultants of New York, New York, NY, USA
| | - David Sarraf
- Retinal Disorders and Ophthalmic Genetics Division, Stein Eye Institute, University of California Los Angeles, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA; Greater Los Angeles VA Healthcare Center, Los Angeles, CA, USA
| | - SriniVas R Sadda
- Department of Ophthalmology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA; Doheny Image Reading and Research Laboratory, Doheny Eye Institute, Pasadena, CA, USA.
| |
Collapse
|
2
|
Shen S, Jin S, Li F, Zhao J. Optical coherence tomography parameters as prognostic factors for stereopsis after vitrectomy for unilateral epiretinal membrane: a cohort study. Sci Rep 2024; 14:6715. [PMID: 38509172 PMCID: PMC10954640 DOI: 10.1038/s41598-024-57203-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/15/2024] [Indexed: 03/22/2024] Open
Abstract
This retrospective cohort study explored the relationship between monocular and interocular optical coherence tomography (OCT) parameters and stereopsis in 56 patients undergoing pars plana vitrectomy (PPV) for unilateral idiopathic epiretinal membrane (IERM). IERM impairs visual functions, with symptoms ranging from asymptomatic to severe impairment. Despite established surgical interventions, including PPV with membrane peeling, the impact on advanced three-dimensional visual functions such as stereopsis remains inadequately investigated. All subjects were assessed for stereopsis, visual acuity, and metamorphopsia, alongside spectral domain OCT parameters. These visual functions significantly improved 3-month postoperatively. Central retinal thickness at the fovea, parafovea, and perifovea (CFT, CRT-3 mm, and CRT-6 mm), ectopic inner foveal layer thickness, and retinal layer thickness notably decreased 1 week to 3 months after surgery. The interocular difference in OCT parameters between bilateral eyes was included as a parameter. Baseline CRT-3 mm difference and inner nuclear layer (INL) thickness were independently correlated with postoperative stereopsis on the Titmus Stereo Test, while baseline CRT-6 mm difference and INL thickness were independently related to stereopsis on the TNO stereotest. This study highlights the substantial enhancement in stereopsis post-IERM surgery, with both interocular and monocular OCT parameters independently influencing postoperative stereopsis. These findings underscore the importance of retinal microstructures in assessing and predicting stereopsis in IERM patients after vitrectomy.
Collapse
Affiliation(s)
- Simei Shen
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Siyan Jin
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Fuqiang Li
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Jinsong Zhao
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, 130041, China.
| |
Collapse
|
3
|
Jiao S, Jia Y, Yao X. Emerging imaging developments in experimental vision sciences and ophthalmology. Exp Biol Med (Maywood) 2021; 246:2137-2139. [PMID: 34404253 PMCID: PMC8718248 DOI: 10.1177/15353702211038891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Shuliang Jiao
- Department of Biomedical Engineering, Florida International University, Miami, FL 33174, USA
| | - Yali Jia
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Xincheng Yao
- Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA
| |
Collapse
|