Background
Glaucoma patients with paracentral scotoma are at higher risk of losing central vision than those without glaucoma. The purpose of this study was to determine whether macular inner retinal layer (MIRL) measurements with spectral-domain optical coherence tomography (SD-OCT) outperform circumpapillary retinal nerve fiber layer (cpRNFL) measurements in discriminating between eyes with and without paracentral scotoma.Methods
This retrospective study included 63 early glaucomatous eyes of 63 patients with (PSI group) or without (PSF group) paracentral visual field (VF) defects. MIRL thicknesses, including macular ganglion cell complex (mGCC), macular ganglion cell layer + inner plexiform layer (mGCL+), macular RNFL (mRNFL), and cpRNFL thickness were measured using a SD-OCT instrument (3D OCT-2000). The MIRL and cpRNFL were divided into 50 grid cells and 36 sectors, respectively, which were numbered from center/temporal to periphery/nasal. Discriminating ability of the methods for number of cells/sectors with abnormal thickness (<5 % of normal) and average thickness in the hemisphere corresponding to the VF defects (termed hemi-thickness) was compared by area under the receiver operating characteristics curves (AROCs).Results
The number of abnormal nearest sectors of cpRNFL and all MIRL parameters were significantly smaller in the PSI group than in the PSF group (P?≤?0.001–0.047), whereas no significant differences were found for average or hemi-cpRNFL thickness. The AROCs of the number of abnormal nearest cells for mGCC and mGCL+ and average hemi-thickness for mGCC, mGCL+, and mRNFL were comparable and significantly higher than those of the number of abnormal nearest sectors/cells for cpRNFL (P?=?0.0002–0.0063) and mRNFL (P?=?0.0003–0.0267) parameters.Conclusions
Regional assessment of MIRL thickness as measured by SD-OCT may potentially be an effective method for predicting central involvement of VF defects in early glaucoma. 相似文献Purpose
To describe the association between pattern electroretinogram (PERG) amplitude and spectral domain-optical coherence tomography (SD-OCT) macular thickness, retinal nerve fibre layer (RNFL) thickness and optic disc topography measurements.Subjects and methods
Both eyes (n=132) of 66 glaucoma patients (mean age=67.9 years) enroled in the University of California, San Diego, CA, USA, Diagnostic Innovations in Glaucoma Study (DIGS) were included. Eyes were tested with PERG (Glaid PERGLA, Lace Elettronica, Pisa, Italy), RTVue SD-OCT (Optovue Inc., Fremont, CA, USA) GCC, and NHM4 protocols on the same day. Of the 66 enroled patients, 43 had glaucoma defined by repeated abnormal standard automated perimetry (SAP) results in at least one eye and 23 were glaucoma suspects defined by a glaucomatous-appearing optic disc by physicians'' examination in at least one eye and normal SAP results in both eyes. Associations (R 2) were determined between PERG amplitude (μV) and SD-OCT macular ganglion cell complex (GCC) thickness (μm), macular thickness (μm), macular outer retinal thickness (macular thickness minus GCC thickness) (μm), RNFL thickness (μm), neuroretinal rim area (mm2), and rim volume (mm3).Results
PERG amplitude was significantly associated with GCC thickness (R 2=0.179, P<0.001), RNFL thickness (R 2=0.174, P<0.001), and macular thickness (R 2=0.095, P<0.001). R 2 associations with other parameters were not significant (all P>0.624). Significant associations remained for GCC and average RNFL thickness when age and intraocular pressure at the time of testing were included in multivariate models (both P≤0.030).Conclusions
PERG amplitude is significantly (but weakly) associated with macular GCC thickness, RNFL thickness, and macular thickness. The lack of association between PERG amplitude and macular outer retinal thickness supports previous results, possibly suggesting that that the PERG is driven primarily by retinal ganglion cell (inner retinal) responses. 相似文献Purpose
To compare the diagnostic abilities of peripapillary retinal nerve fiber layer (RNFL) and macular inner retina (MIR) measurements by spectral domain optical coherence tomography (SD–OCT) in Indian eyes early glaucoma.Methods
In an observational, cross-sectional study, 125 eyes of 64 normal subjects and 91 eyes of 59 early glaucoma patients underwent RNFL and MIR imaging with SD–OCT. Glaucomatous eyes had characteristic optic nerve and RNFL abnormalities and correlating visual field defects and a mean deviation of better than or equal to -6 dB on standard automated perimetry. Areas under the receiver operating characteristic curves (AUC), sensitivities at a fixed specificity and likelihood ratios (LRs) were estimated for all RNFL and MIR parameters.Results
The AUCs for the RNFL parameters ranged from 0.537 for the temporal quadrant thickness to 0.821 for the inferior quadrant RNFL thickness. AUCs for the MIR parameters ranged from 0.603 for the superior minus inferior MIR thickness average to 0.908 for ganglion cell complex focal loss volume (GCC–FLV). AUC for the best MIR parameter (GCC–FLV) was significantly better (P<0.001) than that of the best RNFL parameter (inferior quadrant thickness). The sensitivities of these parameters at high specificity of 95%, however, were comparable (52.7% vs58.2%). Evaluation of the LRs showed that outside normal limits results of most of the RNFL and MIR parameters were associated with large effects on the post-test probability of disease.Conclusion
MIR parameters with RTVue SD–OCT were as good as the RNFL parameters to detect early glaucoma. 相似文献Purpose
This study was performed to measure the macular and the retinal nerve fiber layer (RNFL) thicknesses using optical coherence tomography (OCT) in patients with unilateral amblyopia.Methods
Measurement of the Retinal nerve fiber layer and Macular Retinal Layer thickness for both amblyopic and normal fellow eyes by (OCT) was carried out at king Abdulaziz University Hospital, Riyadh, Saudi Arabia.Results
Ninety-three patients with unilateral amblyopia between the ages of 5 years and 12 years were included. The macular retinal thickness and the RNFL thickness were measured using OCT. The mean macular retinal thickness was 259.3 μm and 255.6 μm, and the mean RNFL thickness was 112.16 μm and 106 μm, in the amblyopic eye and the normal eye, respectively. OCT assessment of RNFL thickness revealed a significantly thicker RNFL in amblyopic eye (P < 0.0001), but no statistically significant difference was found in macular retinal thickness (P = 0.195).Conclusion
The amblyopic process may involve the RNFL, but not the macula. However, further evaluation is needed. 相似文献Purpose
To describe the macular findings on optical coherence tomography (OCT) in patients with cat-scratch disease (CSD) neuroretinitis.Methods
Medical records of all patients diagnosed with CSD neuroretinitis at the Tel Aviv Medical Center between April 2006 and May 2010 were retrospectively reviewed. All patients underwent Stratus OCT macular examination.Results
Eight eyes of seven patients with confirmed CSD neuroretinitis, (mean age 33±9.9 years, range 6–48 years) were included in the study. All patients presented clinically with optic nerve swelling and macular edema or macular exudates. OCT demonstrated flattening of the foveal contour, thickening of the neurosensory retina, and accumulation of subretinal fluid (SRF) in all studied eyes. Retinal exudates appeared as multiple hyper-reflective foci in the outer plexiform layer. The average central macular thickness was 460 μm (range 170–906 μm) and the average maximal retinal thickness was 613 μm (range 387–1103 μm), at presentation. The macula appeared normal on repeated exams during follow-up.Conclusion
Similar OCT findings were demonstrated in patients with CSD neuroretinitis. SRF was found in all eyes, although was not visible on clinical examination or fluorescein angiography. OCT may be used as an adjunct imaging tool in the diagnosis and follow-up of patients with CSD neuroretinitis. 相似文献目的:分析光学相干断层扫描技术(OCT)测量黄斑区神经节细胞复合体(mGCC)、视盘周围视网膜神经纤维层(pRNFL)、黄斑区视网膜神经纤维层(mRNFL)和黄斑区神经节细胞层+内丛状层(GCIP)厚度对早期原发性开角型青光眼(POAG)的诊断价值。
方法:采用病例对照研究设计,收集2019-01/2020-01于我院收治的早期POAG患者82例82眼,选择同期健康志愿者40例40眼(左右眼各20眼)为对照组,所有受检者均检查裸眼视力(UCVA)及最佳矫正视力(BCVA)及等效球镜度数,比较两组受检者上方、下方、鼻侧、颞侧及平均的pRNFL厚度及上、下方、平均的mGCC、黄斑区视网膜神经纤维层(mRNFL)、黄斑区神经节细胞层+内丛状层(GCIP)厚度,采用Spearman分析各指标平均厚度之间的相关性,采用ROC曲线分析mGCC、pRNFL、mRNFL和GCIP厚度参数诊断早期POAG的价值。
结果:早期POAG组患者上方、鼻侧、下方、颞侧、平均pRNFL厚度和上方、下方及平均mGCC、mRNFL、GCIP厚度均低于对照组(均P<0.05)。平均pRNFL厚度与平均mGCC厚度、平均mRNFL厚度及平均GCIP厚度正相关(rs=0.582、0.632、0.456,均P<0.05); 平均mGCC厚度与平均mRNFL厚度及平均GCIP厚度正相关(rs=0.583、0.851,均P<0.05); 平均mRNFL厚度与平均GCIP厚度正相关(rs=0.528,均P<0.01)。ROC曲线分析得出不同部位mGCC厚度及平均值AUC值均在0.8以上,其诊断效能最高。
结论:OCT测量mGCC诊断早期POAG具有一定价值。 相似文献