Changes in intraocular pressure values measured with noncontact tonometer (NCT), ocular response analyzer (ORA) and corvis scheimpflug technology tonometer (CST) in the early phase after small incision lenticule extraction (SMILE)

Table 2 Changes in IOP measurements (n = 22)

Variables	Pre-operative		Postoperative 20 min		Postoperative 24 h		F value^a	P value
Variables	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD	Range	F value^a	P value
NCT-IOP (mmHg)	15.04 ± 2.91	11.1 to 20.9	9.19 ± 2.52	4.6 to 15.2	9.70 ± 2.95	5.8 to 17.2	81.173	<0.001^b
IOPcc (mmHg)	14.99 ± 2.46	10.2 to 19.0	16.65 ± 4.29	12.1 to 29.4	14.01 ± 3.10	6.8 to 20.3	4.975	0.030^b
IOPg (mmHg)	15.10 ± 3.21	9.3 to 21.9	11.20 ± 3.38	4.7 to 18.2	9.52 ± 2.85	4.5 to 15.9	40.128	<0.001^b
CST-IOP (mmHg)	17.74 ± 2.16	13.0 to 23.0	14.29 ± 2.09	10.0 to 17.5	14.57 ± 1.58	10.5 to 18.0	31.886	<0.001^b

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