Effect of Active and Passive Smoking on Retinal Nerve Fibre Layer and Ganglion Cell Complex

Table 6

Correlations between superior and inferior RNFL thicknesses and different parameters in the active smoker group.

Variables	Active smokers
	Superior RNFL thickness		Inferior RNFL thickness
	r	p	r	p
Age (years)	0.05	0.66	0.02	0.86
VA (logMAR)	0.01	0.92	0.01	0.92
SE (diopters)	−0.03	0.79	−0.04	0.72
AL (mm)	−0.05	0.66	0.06	0.60
IOP (mmHg)	−0.06	0.60	−0.07	0.54
CCT (mm)	−0.19	0.09	−0.07	0.54
N95 latency (ms)	−0.43	<0.0001	−0.35	<0.0001
P50-N95 amplitude (μV)	0.44	<0.0001	0.40	<0.0001
The number of cigarettes/day	−0.75	<0.0001	0.72	<0.0001
Duration of smoking (years)	−0.03	0.79	−0.08	0.48
Urinary cotinine (ng/ml)	−0.24	<0.0001	−0.31	<0.0001