Hypothyroidism is Not Associated with Keratoconus Disease: Analysis of 626 Subjects

Table 4

Biomechanical parameters measured with the ocular response analyzer in different disease groups.

Disease group	KMI	CH	CRF
1. Euthyroid without keratoconus (n = 78)	0.71 ± 0.39	10.00 ± 1.90	9.89 ± 1.95
	0.67; 0.53	9.95; 2.62	9.55; 2.85
2. Euthyroid with keratoconus (n = 325)	0.09 ± 0.40	8.15 ± 1.73	7.06 ± 2.08
	0.06; 0.57	8.10; 2.20	6.90; 2.50
3. Hypothyroid without keratoconus (n = 72)	0.81 ± 0.32	10.28 ± 1.88	10.00 ± 1.96
	0.88; 0.42	9.95; 2.62	9.60; 2.80
4. Hypothyroid with keratoconus (n = 77)	0.04 ± 0.41	8.18 ± 2.05	7.00 ± 2.46
	0.02; 0.57	8.30; 2.55	7.10; 2.70
Difference between groups:
1-2
3-4
1–3		—	—
2–4	—	—	—

Values represent the mean ± standard deviation or the median; interquartile range, as indicated. ; . KMI: keratoconus match index; CH: corneal hysteresis; CRF: corneal resistance factor.