Background: To assess the sensitivity and specificity of hemifield pattern electroretinogram (HF-PERG) for detecting early retinal ganglion cell (RGC) damage in ocular hypertensive (OH) patients.Methods: Fifty-two OH patients (mean age 56±9.6 years) with an intraocular pressure (IOP).21 mmHg were assessed. All subjects underwent HF-PERG, optical coherence tomography (OCT), and frequency doubling technology (FDT) visual field.Results: OH patients showed a significant increase of peak-time of the N95 (P=0.027) compared to controls. The amplitude of the N95 of the lower and upper HF-PERG showed significant differences (P=0.037 and P=0.023, respectively) between the two groups. A significant intraocular (P=0.006) and interocular (P=0.018) asymmetry of N95 amplitude was found. Receiver operating characteristic (ROC) curve analysis revealed a sensitivity of 93% for the N95 of the lower HF-PERG, whereas full-field pattern electroretinogram (PERG) N95 peak-time had a sensitivity of 88%. In OH patients, we found a thinning of OCT - retinal nerve fiber layer (RNFL), especially in the superior and inferior quadrant, although not statistically significant, and a significantly higher FDT pattern standard deviation (FDT-PSD; P=0.001). In the OCT-RNFL inferior quadrant, a sensitivity of 82% was recorded. Finally, the sensitivity of the FDT-PSD was 92%.Conclusion: Our study shows that HF-PERG is a very sensitive test for detecting early damage of the RGC.

Finzi A., Strobbe E., Tassi F., Fresina M., Cellini M. (2014). Hemifield pattern electroretinogram in ocular hypertension: Comparison with frequency doubling technology and optical coherence tomography to detect early optic neuropathy. CLINICAL OPHTHALMOLOGY, 8, 1929-1936 [10.2147/OPTH.S67193].

Hemifield pattern electroretinogram in ocular hypertension: Comparison with frequency doubling technology and optical coherence tomography to detect early optic neuropathy

Finzi A.
Primo
Conceptualization
;
Strobbe E.;Fresina M.
Membro del Collaboration Group
;
Cellini M.
2014

Abstract

Background: To assess the sensitivity and specificity of hemifield pattern electroretinogram (HF-PERG) for detecting early retinal ganglion cell (RGC) damage in ocular hypertensive (OH) patients.Methods: Fifty-two OH patients (mean age 56±9.6 years) with an intraocular pressure (IOP).21 mmHg were assessed. All subjects underwent HF-PERG, optical coherence tomography (OCT), and frequency doubling technology (FDT) visual field.Results: OH patients showed a significant increase of peak-time of the N95 (P=0.027) compared to controls. The amplitude of the N95 of the lower and upper HF-PERG showed significant differences (P=0.037 and P=0.023, respectively) between the two groups. A significant intraocular (P=0.006) and interocular (P=0.018) asymmetry of N95 amplitude was found. Receiver operating characteristic (ROC) curve analysis revealed a sensitivity of 93% for the N95 of the lower HF-PERG, whereas full-field pattern electroretinogram (PERG) N95 peak-time had a sensitivity of 88%. In OH patients, we found a thinning of OCT - retinal nerve fiber layer (RNFL), especially in the superior and inferior quadrant, although not statistically significant, and a significantly higher FDT pattern standard deviation (FDT-PSD; P=0.001). In the OCT-RNFL inferior quadrant, a sensitivity of 82% was recorded. Finally, the sensitivity of the FDT-PSD was 92%.Conclusion: Our study shows that HF-PERG is a very sensitive test for detecting early damage of the RGC.
2014
Finzi A., Strobbe E., Tassi F., Fresina M., Cellini M. (2014). Hemifield pattern electroretinogram in ocular hypertension: Comparison with frequency doubling technology and optical coherence tomography to detect early optic neuropathy. CLINICAL OPHTHALMOLOGY, 8, 1929-1936 [10.2147/OPTH.S67193].
Finzi A.; Strobbe E.; Tassi F.; Fresina M.; Cellini M.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/872022
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