PURPOSE: The objective of the present study was to determine whether dry eye (DE) associated with primary Sjögren's syndrome (PSDE) and DE not associated with Sjögren's syndrome (NSDE) are related to an alteration of corneal innervation. METHODS: Eleven healthy volunteers younger than 60 years (normal [N] < 60 group), 10 healthy volunteers 60 years of age or older (N > or = 60 group), 11 patients with PSDE, and 10 patients with NSDE were studied. Epithelial and stromal density and subbasal and stromal nerves were investigated by confocal microscopy. RESULTS: The density of the superficial epithelial cells was 741 +/- 306 cells/mm2 in the PSDE group; 1022 +/- 331 cells/mm2 in the NSDE group; 1523 +/- 294 cells/mm2 in the N > or = 60 group, and 1529 +/- 341 cells/mm2 in the N < 60 group (P < 0.0001, ANOVA). The number of subbasal nerves was 2.8 +/- 1.2 in the PSDE group, 3.3 +/- 0.7 in the NSDE group, 3.1 +/- 0.9 in the N > or = 60 group, and 4.6 +/- 0.8 in the N < 60 group (P < 0.0001, ANOVA). The number of beadlike formations observed in the different groups was 387 +/- 62/mm in the PSDE group, 323 +/- 64/mm in the NSDE group, 182 +/- 63/mm in the N > or = 60 group, and 198 +/- 66/mm in the N < 60 group (P < 0.0001, ANOVA). A correlation was found between the number of subbasal nerves and age (P < 0.01) and between the number of subbasal nerves and Schirmer's test (P < 0.001, Spearman rho). CONCLUSIONS: Patients with DE show alteration in the corneal innervations. The demonstration of such alterations introduces new strategies for treatment of this frequent disease. Copyright Association for Research in Vision and Ophthalmology
PURPOSE: The objective of the present study was to determine whether dry eye (DE) associated with primary Sjögren's syndrome (PSDE) and DE not associated with Sjögren's syndrome (NSDE) are related to an alteration of corneal innervation. METHODS: Eleven healthy volunteers younger than 60 years (normal [N] < 60 group), 10 healthy volunteers 60 years of age or older (N > or = 60 group), 11 patients with PSDE, and 10 patients with NSDE were studied. Epithelial and stromal density and subbasal and stromal nerves were investigated by confocal microscopy. RESULTS: The density of the superficial epithelial cells was 741 +/- 306 cells/mm2 in the PSDE group; 1022 +/- 331 cells/mm2 in the NSDE group; 1523 +/- 294 cells/mm2 in the N > or = 60 group, and 1529 +/- 341 cells/mm2 in the N < 60 group (P < 0.0001, ANOVA). The number of subbasal nerves was 2.8 +/- 1.2 in the PSDE group, 3.3 +/- 0.7 in the NSDE group, 3.1 +/- 0.9 in the N > or = 60 group, and 4.6 +/- 0.8 in the N < 60 group (P < 0.0001, ANOVA). The number of beadlike formations observed in the different groups was 387 +/- 62/mm in the PSDE group, 323 +/- 64/mm in the NSDE group, 182 +/- 63/mm in the N > or = 60 group, and 198 +/- 66/mm in the N < 60 group (P < 0.0001, ANOVA). A correlation was found between the number of subbasal nerves and age (P < 0.01) and between the number of subbasal nerves and Schirmer's test (P < 0.001, Spearman rho). CONCLUSIONS:Patients with DE show alteration in the corneal innervations. The demonstration of such alterations introduces new strategies for treatment of this frequent disease. Copyright Association for Research in Vision and Ophthalmology
Authors: Fiona Stapleton; Carl Marfurt; Blanka Golebiowski; Mark Rosenblatt; David Bereiter; Carolyn Begley; Darlene Dartt; Juana Gallar; Carlos Belmonte; Pedram Hamrah; Mark Willcox Journal: Invest Ophthalmol Vis Sci Date: 2013-10-18 Impact factor: 4.799
Authors: B Iaccheri; G Torroni; C Cagini; T Fiore; A Cerquaglia; M Lupidi; S Cillino; H S Dua Journal: Eye (Lond) Date: 2017-02-03 Impact factor: 3.775
Authors: Tina B McKay; Yashar Seyed-Razavi; Chiara E Ghezzi; Gabriela Dieckmann; Thomas J F Nieland; Dana M Cairns; Rachel E Pollard; Pedram Hamrah; David L Kaplan Journal: Prog Retin Eye Res Date: 2018-11-16 Impact factor: 21.198