Journal
CANADIAN JOURNAL OF OPHTHALMOLOGY-JOURNAL CANADIEN D OPHTALMOLOGIE
Volume 58, Issue 1, Pages 18-26Publisher
CANADIAN OPHTHAL SOC
DOI: 10.1016/j.jcjo.2021.07.004
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This study compared and correlated retinal sensitivities measured by two different instruments with structural parameters obtained from optical coherence tomography (OCT) in primary open-angle glaucoma (POAG) and ocular hypertension. The results showed that both MAIA-MP and HFA 10-2 functional parameters had strong correlations with OCT structural parameters in POAG cases. Both devices are useful in assessing the central visual field in glaucoma, with MAIA-MP potentially more beneficial in patients with limited cooperation or poor vision.
Objective: To compare and correlate retinal sensitivities measured with macular integrity assessment microperimetry (MAIA-MP) and Humphrey field analyzer (HFA) 10-2 tests with structural parameters obtained from optical coherence tomography (OCT) in primary open-angle glaucoma (POAG) and ocular hypertension.Methods: This study included 63 participants (22 with POAG, 20 with ocular hypertension, and 21 control individuals). All participants underwent HFA 10-2 and MAIA-MP (macular retinal sensitivity tests) and measurements for optic nerve head (ONH), peripapillary retinal nerve fibre layer thickness (PRNFLT), and ganglion cell inner plexiform layer thickness (GCIPLT) using OCT. The relationship between macular retinal sensitivity and OCT parameters was evaluated by Pearson correlation analysis and linear regression modelling.Results: POAG cases had a strong association between the MAIA-MP and ONH parameters (optic disc area [ODA], p = 0.037; cup vol-ume, p = 0.043), PRNFLT (average, p = 0.009; inferior PRNFLT, p = 0.004), and GCIPLT in all macula sectors (p < 0.005 for all). HFA 10-2 had a moderate correlation with the ONH parameters (cup-to-disc ratio [CDR], p = 0.042; vertical CDR, p = 0.037; cup volume, p = 0.037; ODA, p = 0.014), PRNFLT (average, inferior, and nasal, p < 0.05 for all), and GCIPLT in all macula sectors (p < 0.005 for all). OHT cases had a weak correlation between HFA 10-2 and nasal and superior PRNFLTs (p = 0.035 and p = 0.047, respectively).Conclusion: MAIA-MP and HFA 10-2 functional parameters have strong correlations with the structural parameters obtained by OCT in POAG cases. Both devices are useful in assessing the central visual field in glaucoma, with MAIA-MP potentially beneficial in patients with lim-ited cooperation or poor vision
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