Effects of Smoking on Optic Nerve Head Microvasculature Density in Glaucoma. Issue 9 (19th September 2022)

• Record Type: Journal Article
• Authors: Eslani, Medi; Nishida, Takashi; Weinreb, Robert N.; Baxter, Sally; Mahmoudinezhad, Golnoush; Kamalipour, Alireza; Yarmohammadi, Adeleh; Zangwill, Linda M.; Moghimi, Sasan
• Is Part Of: Journal of glaucoma. Volume 31:Issue 9(2022)
• Page Start: 710
• Page End: 716
• Publication Date: 2022-09-19
• Subjects: glaucoma -- optical coherence tomography -- smoking; Glaucoma -- Periodicals; 617.741005
• DOI: 10.1097/IJG.0000000000002081
• Languages: English
• ISSNs: 1057-0829

Abstract

Abstract : Précis: Decreased superficial whole image capillary density was observed in open angle glaucoma (OAG) patients with high smoking intensity. Purpose: To investigate the effects of smoking on optic nerve head capillary density measured by optical coherence tomography angiography in patients with OAG. Methods: In this retrospective cross-sectional study, perimetric and preperimetric glaucoma patients enrolled in the Diagnostic Innovations in Glaucoma Study (DIGS) with optical coherence tomography angiography follow-up were included. Univariable and multivariable linear mixed analysis were performed to determine the effects of different variables on the superficial whole image capillary density. Results: A total of 432 eyes of 271 glaucoma patients comprising 63 preperimetric (106 eyes) and 208 perimetric OAG (326 eyes) were included. A history of tobacco consumption was reported in 105 (38.8%). Among smokers, mean (95% confidence interval) smoking intensity was 12.8 (10.2, 15.5) pack-years. After adjusting for age, glaucoma severity and other confounders, each 10 pack-year increase in smoking intensity (95% confidence interval) was associated with −0.54 (−1.06, −0.02) % lower whole image capillary density ( P =0.041). Conclusions: Smoking intensity is associated with reduced optic nerve vessel density in glaucoma.