Cigarette smoking and retinal ganglion cell layer and photoreceptor outer segment thickness: The Beijing Eye Study.
Li Zihan, Pan Zhe, Huang Yu, Xie Hui, Wu Xiaodong, Zhang Chun et al.
This study found that smoking is associated with thinner retinal ganglion cell and photoreceptor layers, suggesting smoking may contribute to optic nerve damage or age-related macular degeneration.