ABSTRACT
PURPOSE: Macular damage is common early in glaucoma and has previously been identified as a significant factor affecting vision-related quality of life (VRQoL) across the spectrum of glaucomatous damage. This report uses structure-function correlation to identify early macular damage and assess its relationship with the National Eye Institute Visual Function Questionnaire (NEI VFQ-25). DESIGN: Cohort study. METHODS: Setting: Institutional. STUDY POPULATION: Eighty-eight eyes of 44 participants with early open-angle glaucoma (24-2 mean deviation [MD] better than -6 dB). OBSERVATION PROCEDURE: Focal and diffuse macular defects were identified based on corresponding abnormal regions on probability maps from spectral-domain optical coherence tomography (SD-OCT) optic disc and macular cube scans, and 10-2 and 24-2 visual fields (VF). MAIN OUTCOME MEASURE: VRQoL, as measured by the NEI VFQ-25. RESULTS: Twenty-five of 44 (57%) "worse" eyes (defined by 24-2 VF MD) and 13 of 44 (31%) "better" eyes had macular damage. Mean (±standard deviation) MD of worse and better eyes were -3.03 dB (±2.3) and -1.15 dB (±1.7), respectively. Compared to those without macular damage, lower NEI VFQ-25 scores were seen in patients with macular damage in the worse eye (85.4 [± 9.0] vs 94.6 [± 3.3]; P = .0001) and the better eye (84.8 [± 11.1] vs 91.3 [± 6.3]; P = .017). Arcuate damage outside the macula did not affect VRQoL (better eye, P = .40; worse eye, P = .87). CONCLUSIONS: Early glaucomatous macular damage, as detected by abnormal topographic regions on measures of structure and function, is associated with decreased VRQoL. Arcuate damage outside the macula does not have an association with VRQoL in early glaucoma.
Subject(s)
Glaucoma, Open-Angle/diagnosis , Macula Lutea/pathology , Quality of Life/psychology , Retinal Diseases/diagnosis , Sickness Impact Profile , Vision Disorders/diagnosis , Aged , Cohort Studies , Female , Glaucoma, Open-Angle/psychology , Gonioscopy , Humans , Intraocular Pressure/physiology , Male , Middle Aged , Ophthalmoscopy , Prospective Studies , Retinal Diseases/psychology , Sensitivity and Specificity , Slit Lamp Microscopy , Surveys and Questionnaires , Tomography, Optical Coherence/methods , Vision Disorders/psychology , Visual Acuity/physiology , Visual Field TestsABSTRACT
PURPOSE: To create a multivariable predictive model for glaucoma in an exclusively African American population and to compare the performance of the model with individual structural parameters derived from SD-OCT. PATIENTS AND METHODS: A total of 103 healthy eyes and 118 glaucomatous eyes of African American patients underwent SD-OCT optic disc and macular scanning. Twenty-seven optic nerve head, retinal nerve fiber layer (RNFL), and ganglion cell parameters were collected. A multivariable model was derived using a backward elimination variable selection procedure. Areas under the curve were used to measure the diagnostic performance of the individual parameters and the multivariable model. RESULTS: The best performing parameters for glaucoma patients included inferior quadrant thickness (AUC=0.9239), average RNFL thickness (AUC=0.9209), sup2 RNFL thickness (AUC=0.9157), superior quadrant thickness (AUC=0.8906), and vertical CDR (AUC=0.8640). The best performing parameters for early glaucoma patients were sup2 RNFL thickness (AUC=0.8680), inferior quadrant thickness (AUC=0.8571), average RNFL thickness (AUC=0.8550), superior quadrant thickness (AUC=0.8420), and inf2 RNFL thickness (AUC=0.8420). The AUC of the multivariable model was 0.8918 for early glaucoma and 0.9744 for moderate/advanced glaucoma. There was some variability in the performance of the model based on disc size. CONCLUSIONS: These findings confirm that several individual RNFL, ONH, and GCA parameters have excellent diagnostic performance in differentiating glaucomatous patients from healthy patients in African American population. A multivariable model was developed and validated with high diagnostic accuracy.
Subject(s)
Glaucoma/diagnosis , Nerve Fibers/pathology , Retinal Ganglion Cells/pathology , Tomography, Optical Coherence/methods , Adult , Black or African American/ethnology , Aged , Area Under Curve , Female , Glaucoma/classification , Glaucoma/ethnology , Healthy Volunteers , Humans , Intraocular Pressure , Male , Middle Aged , Optic Disk/pathology , Reproducibility of ResultsABSTRACT
BACKGROUND AND OBJECTIVE: To compare fundus autofluorescence (FAF) imaging via fundus camera (FC) and confocal scanning laser ophthalmoscope (cSLO). PATIENTS AND METHODS: FAF images were obtained with a digital FC (530 to 580 nm excitation) and a cSLO (488 nm excitation). Two authors evaluated correlation of autofluorescence pattern, atrophic lesion size, and image quality between the two devices. RESULTS: In 120 eyes, the autofluorescence pattern correlated in 86% of lesions. By lesion subtype, correlation rates were 100% in hemorrhage, 97% in geographic atrophy, 82% in flecks, 75% in drusen, 70% in exudates, 67% in pigment epithelial detachment, 50% in fibrous scars, and 33% in macular hole. The mean lesion size in geographic atrophy was 4.57 ± 2.3 mm(2) via cSLO and 3.81 ± 1.94 mm(2) via FC (P < .0001). Image quality favored cSLO in 71 eyes. CONCLUSION: FAF images were highly correlated between the FC and cSLO. Differences between the two devices revealed contrasts. Multiple image capture and confocal optics yielded higher image contrast with the cSLO, although acquisition and exposure time was longer.
