Ocular Surface Epithelial Thickness Evaluation in Dry Eye Patients: Clinical Correlations

Table 4

Correlations of ocular surface epithelial thickness with the result of clinical tests in the DED group.

Parameters	Gender	Age	OSDI	Schirmer I test	TBUT	Oxford scale	MCS	TFL
CET
	0.079	0.036	0.047					0.003
	0.468	0.743	0.668	0.318	0.424	0.342	0.755	0.975
LET
				0.263	0.378
	0.252	0.504	0.047	0.089	0.012	0.325	0.469	0.607
LET (nasal)
				0.209	0.311		0.112	0.000
	0.694	0.182	0.022	0.054	0.004	0.295	0.304	0.999
LET (temporal)
		0.162		0.059	0.280	0.062	0.003
	0.167	0.135	0.119	0.592	0.009	0.573	0.976	0.968
LET (superior)
			0.009	0.198	0.101	0.105	0.054
	0.995	0.343	0.933	0.067	0.354	0.335	0.623	0.694
LET (inferior)
	0.054	0.006		0.271	0.638		0.273
	0.429	0.953	<0.001	0.012	<0.001	0.017	0.011	0.548
BET
	0.157	0.085	0.362			0.134
	0.314	0.588	<0.001	0.290	<0.001	0.392	0.252	0.504
BET (nasal)
	0.041	0.053	0.452			0.130
	0.705	0.627	<0.001	0.254	<0.001	0.233	0.334	0.815
BET (temporal)
	0.023	0.295	0.497			0.132		0.069
	0.833	0.006	<0.001	0.326	<0.001	0.225	0.319	0.529
BET (superior)
	0.097	0.060	0.384			0.118
	0.372	0.581	<0.001	0.493	<0.001	0.280	0.063	0.930
BET (inferior)
	0.191		0.281			0.092		0.097
	0.078	0.807	0.009	0.651	0.007	0.401	0.089	0.376

DED: dry eye disease; OSDI: Ocular Surface Disease Index; TBUT: tear film break-up time; MCS: mean corneal sensitivity; TFL: tear film lipid layer interferometry; CET: corneal epithelium thickness; LET: limbal epithelium thickness; BET: bulbar conjunctival epithelium thickness.