Objective: To compare the prevalence of structural and psychophysical abnormalities in normal eyes and eyes with glaucomatous optic neuropathy (GON) and normal standard automated perimetry (SAP). Methods: Complete exa...Objective: To compare the prevalence of structural and psychophysical abnormalities in normal eyes and eyes with glaucomatous optic neuropathy (GON) and normal standard automated perimetry (SAP). Methods: Complete examination,SAP,short-wavelength automated perimetry (SWAP),frequency doubling technology (FDT),scanning laser polarimetry (GDx-VCC),and optical coherence tomography (OCT) of the peripapillary retinal nerve fiber layer (RNFL),optic disc,and macula were performed. Glaucomatous optic neuropathy was defined as cup-disc asymmetry between fellow eyes of greater than 0.2,rim thinning,notching,excavation,or RNFL defect. All eyes had normal SAP. Abnormal measurements on OCT,GDx-VCC,SWAP,and FDT were defined as those outside 95% normal limits. Eyes were stratified into 3 groups based on the OCT-generated vertical cup-disc ratio: mild,moderate,and advanced cupping (cup-disc ratio of < 0.4,0.4-0.7,and >0.7,respectively). Receiver operating characteristic curves were developed to assess sensitivity and specificity of structural and functional assessments. Results: Forty-seven eyes of 47patients (25 with GON and 22 normal) were enrolled (mean± SD age,58± 16 years; range,25-83 years). Compared with normal eyes,eyes with GON had significantly worse mean deviation and pattern standard deviation by means of SWAP and FDT (P=.02-.05); OCT-derived mean and superior and inferior RNFL thickness (P=.008,< .001,and .05,respectively); mean macular thickness (P=.01),rim volume,rim area,cup-disc ratio,and cup area (all P< .001); and GDx-VCC nerve fiber indicator and inferior average (P=.03). There was a significantly (P=.008,.002,.003,and .01,respectively) greater prevalence of abnormalities identified by SWAP,FDT,OCT and GDx-VCC in eyes with advanced cupping (43% ,43% ,57% ,and 57% ,respectively) compared with mild cupping (0% ) and moderate cupping (9% ,5% ,19% ,and 33% ,respectively). Conclusions: Eyes with GON and normal results of SAP have significantly greater structural and psychophysical abnormalities than do normal eyes evaluated by means of OCT,GDx-VCC,SWAP,and FDT. Eyes with increased vertical cup-disc ratio are more likely to manifest such abnormalities on advanced diagnostic testing.展开更多
文摘Objective: To compare the prevalence of structural and psychophysical abnormalities in normal eyes and eyes with glaucomatous optic neuropathy (GON) and normal standard automated perimetry (SAP). Methods: Complete examination,SAP,short-wavelength automated perimetry (SWAP),frequency doubling technology (FDT),scanning laser polarimetry (GDx-VCC),and optical coherence tomography (OCT) of the peripapillary retinal nerve fiber layer (RNFL),optic disc,and macula were performed. Glaucomatous optic neuropathy was defined as cup-disc asymmetry between fellow eyes of greater than 0.2,rim thinning,notching,excavation,or RNFL defect. All eyes had normal SAP. Abnormal measurements on OCT,GDx-VCC,SWAP,and FDT were defined as those outside 95% normal limits. Eyes were stratified into 3 groups based on the OCT-generated vertical cup-disc ratio: mild,moderate,and advanced cupping (cup-disc ratio of < 0.4,0.4-0.7,and >0.7,respectively). Receiver operating characteristic curves were developed to assess sensitivity and specificity of structural and functional assessments. Results: Forty-seven eyes of 47patients (25 with GON and 22 normal) were enrolled (mean± SD age,58± 16 years; range,25-83 years). Compared with normal eyes,eyes with GON had significantly worse mean deviation and pattern standard deviation by means of SWAP and FDT (P=.02-.05); OCT-derived mean and superior and inferior RNFL thickness (P=.008,< .001,and .05,respectively); mean macular thickness (P=.01),rim volume,rim area,cup-disc ratio,and cup area (all P< .001); and GDx-VCC nerve fiber indicator and inferior average (P=.03). There was a significantly (P=.008,.002,.003,and .01,respectively) greater prevalence of abnormalities identified by SWAP,FDT,OCT and GDx-VCC in eyes with advanced cupping (43% ,43% ,57% ,and 57% ,respectively) compared with mild cupping (0% ) and moderate cupping (9% ,5% ,19% ,and 33% ,respectively). Conclusions: Eyes with GON and normal results of SAP have significantly greater structural and psychophysical abnormalities than do normal eyes evaluated by means of OCT,GDx-VCC,SWAP,and FDT. Eyes with increased vertical cup-disc ratio are more likely to manifest such abnormalities on advanced diagnostic testing.
