Corneal biomechanical changes in allergic conjunctivitis

Table 5 Comparison of corneal densitometry parameters between the non-allergic conjunctivitis (NAC) and allergic conjunctivitis (AC) groups

Densitometry	NAC	AC	p^a
Densitometry	Mean ± SD	Mean ± SD	p^a
0–2 mm
Anterior layer	22.07 ± 1.22	23.12 ± 2.28	0.07
Central layer	13.45 ± 0.95	13.73 ± 0.76	0.26
Posterior layer	9.58 ± 1.01	9.92 ± 0.68	0.16
Average	15.02 ± 0.85	15.57 ± 1.04	0.05
2–6 mm
Anterior layer	19.60 ± 0.96	20.41 ± 1.66	0.05
Central layer	11.97 ± 0.53	12.27 ± 0.58	0.07
Posterior layer	8.82 ± 0.79	9.13 ± 0.56	0.11
Average	13.55 ± 0.62	13.92 ± 0.76	0.07
6–10 mm
Anterior layer	18.30 ± 1.65	22.91 ± 4.02	< 0.001
Central layer	11.73 ± 1.01	12.93 ± 1.83	0.01
Posterior layer	9.39 ± 0.79	10.09 ± 1.47	0.06
Average	13.14 ± 1.06	15.31 ± 2.06	< 0.001
10–12 mm
Anterior layer	27.61 ± 7.33	34.37 ± 6.05	0.001
Central layer	19.24 ± 4.86	18.25 ± 3.27	0.39
Posterior layer	14.13 ± 2.65	13.23 ± 3.67	0.35
Average	20.32 ± 4.55	22.50 ± 3.37	0.06
Total
Anterior layer	20.79 ± 1.15	23.71 ± 2.40	< 0.001
Central layer	13.26 ± 0.80	13.69 ± 1.18	0.16
Posterior layer	9.96 ± 0.71	10.20 ± 1.10	0.40
Average	14.66 ± 0.72	15.83 ± 1.16	< 0.001

ISSN: 2326-0254