PMID- 33299296 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220418 IS - 1177-5467 (Print) IS - 1177-5483 (Electronic) IS - 1177-5467 (Linking) VI - 14 DP - 2020 TI - Retinal Sensitivity Thresholds Obtained Through Easyfield and Humphrey Perimeters in Eyes with Glaucoma: A Cross-Sectional Comparative Study. PG - 4201-4207 LID - 10.2147/OPTH.S280692 [doi] AB - OBJECTIVE: To compare global retinal sensitivity thresholds obtained through the Easyfield perimeter (EF) and Humphrey visual field analyzer (HFA). DESIGN: Observational cross-sectional study. PARTICIPANTS: Glaucomatous patients and glaucoma suspects enrolled between October 2018 and April 2019. MATERIALS AND METHODS: All participants underwent EF (SPARK Precision) and HFA perimetry (SITA-Standard). After inclusion, demographic and ocular data were collected, including measurements of retinal nerve fiber layer (RNFL) thickness obtained from spectral-domain optical coherence tomography (SD-OCT). Global indices (mean deviation, MD; pattern standard deviation, PSD) values were compared between perimeters, and their correlation and agreement were evaluated. We used regression analysis to investigate structure-functional correlations between SD-OCT measurements and MD index of each perimeter. RESULTS: We investigated 111 eyes from 69 patients. Mean MD (mean difference=1.49dB) and PSD values (mean difference=0.42dB) from the HFA were significantly larger than those from the EF perimeter (p<0.001). There were significant linear correlations between EF-MD and HFA-MD (r=0.56), and EF-PSD and HFA-PSD (r=0.38; p<0.001). We found significant non-linear associations between average RNFL thickness and MD values derived from both EF (R(2)=0.41) and HFA (R(2)=0.17) perimeters (p