Corneal biomechanical changes in allergic conjunctivitis

Table 4 Comparison of corneal thickness and epithelial thickness parameters between the non-allergic conjunctivitis (NAC) and allergic conjunctivitis (AC) groups

Parameter	NAC (μm)	AC (μm)	p^a
Parameter	Mean ± SD	Mean ± SD	p^a
Corneal total thickness
2 mm	536.95 ± 24.00	536.20 ± 25.62	0.92
2–5 mm	562.36 ± 23.53	560.78 ± 26.48	0.83
5–7 mm	600.33 ± 26.50	599.13 ± 27.23	0.88
7–9 mm	643.36 ± 31.24	641.08 ± 29.18	0.79
5 mm min	531.05 ± 24.28	530.40 ± 25.36	0.93
5 mm min-max	−64.10 ± 7.22	−63.67 ± 11.87	0.89
Corneal epithelial thickness
2 mm	52.25 ± 2.24	51.07 ± 3.54	0.19
2–5 mm	52.67 ± 1.91	50.44 ± 3.10	0.01
5–7 mm	52.18 ± 2.32	50.20 ± 3.41	0.03
7–9 mm	50.48 ± 2.66	49.87 ± 3.38	0.50
7 mm min	47.80 ± 3.68	44.47 ± 4.42	0.01
7 mm max	55.60 ± 2.89	55.23 ± 3.84	0.72
7 mm min-max	−8.25 ± 4.91	−10.87 ± 5.21	0.08
7 mm SD	1.53 ± 0.69	2.26 ± 1.10	0.01

NAC = non-allergic conjunctivitis; AC = allergic conjunctivitis; SD = standard deviation; min = minimum; max = maximum; min-max = the difference between minimum and maximum
^a Independent samples t-test

ISSN: 2326-0254