Table 1 Summary characteristics of eyes in the Down syndrome (DS) keratoconus (DS-KC), DS KC suspect (DS-KCS), DS non-ectatic comparison (DS-C), and non-DS normal control (NC) groups
From: Tomography-based definition of keratoconus for Down syndrome patients
Index | DS-KC (n = 25) | DS-KCS (n = 46) | DS-C (n = 154) | NC (n = 200) | P value* |
|---|---|---|---|---|---|
UDVA (logMAR) | 0.73 ± 0.57 | 0.58 ± 0.49 | 0.55 ± 0.44 | 0.91 ± 0.64 | 0.358 |
CDVA (logMAR) | 0.29 ± 0.14 | 0.24 ± 0.13 | 0.23 ± 0.13 | 0.02 ± 0.08 | 0.279 |
Spherical error (D) | −1.51 ± 4.91 | −0.40 ± 4.31 | −0.21 ± 3.13 | − 3.31 ± 3.38 | 0.428 |
Cylindrical error (D) | −2.54 ± 2.40 | − 1.92 ± 1.21 | −1.50 ± 1.06 | −1.88 ± 1.53 | 0.009 |
Kmax (D) | 50.26 ± 5.88 | 47.47 ± 1.65 | 47.09 ± 1.70 | 44.93 ± 1.55 | < 0.001 |
BAD-D | 2.98 ± 1.44 | 2.26 ± 0.66 | 1.72 ± 1.02 | 1.20 ± 0.53 | < 0.001 |