Journal
RETINA-THE JOURNAL OF RETINAL AND VITREOUS DISEASES
Volume 38, Issue 5, Pages 1031-1040Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/IAE.0000000000001632
Keywords
central foveal thickness; subfoveal choroidal thickness; retinal response density; mf-ERG ring amplitude ratio; urinary cotinine
Categories
Ask authors/readers for more resources
Purpose: The aim is to study the effects of cigarette smoking on the structural and functional alterations of the macula in eyes of healthy young smokers. Methods: Cross-sectional clinical study included 100 active smokers (Group 1) and 100 age-and sex-matched healthy passive smokers (Group 2). All participants underwent a complete ophthalmologic assessment, axial length measurement, central corneal thickness measurement, spectral domain optical coherence tomography, and multifocal electroretinogram. Urine samples were collected to measure urinary levels of cotinine and creatinine with subsequent calculation of the cotinine creatinine ratio. Results: Central foveal thickness (255.62 +/- 17.23 and 264.75 +/- 17.35 mu m, respectively, with P = 0.0003) and subfoveal choroidal thickness (377.48 +/- 30.32 and 385.08 +/- 21.10 mu m, respectively, with P = 0.04) were significantly lower in active smokers than those of passive smokers. Retinal response density of ring 1 (31.08 +/- 2.29 and 33.46 +/- 3.83 nV/deg(2), respectively, with P < 0.001) and Ring 1 (R1) P1 amplitude (0.81 +/- 0.07 and 0.95 +/- 0.16 mV, respectively, with P < 0.001) were significantly lower, whereas R1 P1 latency (43.02 +/- 0.97 and 40.39 +/- 2.08 milliseconds, respectively, with P < 0.001) was significantly longer in active smokers than those of passive smokers. The mf-ERG ring ratios were significantly lower in the active smokers than those of passive smokers. Conclusion: In the absence of clinically apparent foveal toxicity, CFT, SFCT together with ring amplitude ratio could be used as good predictors of subclinical nicotine induced foveal changes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available