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Table 5 Mean changes in corneal aberration parameters over 12-month follow-up (n = 31, x ± s)

From: Topography-guided corneal surface laser ablation combined with simultaneous accelerated corneal collagen cross-linking for treatment of keratoconus

 

Preoperative

1-month

6-month

12-month

F

P

HOA-RMS

2.25 ± 0.84

2.02 ± 0.98*

1.71 ± 0.85*#

1.57 ± 0.85*#&

32.796

< 0.001

Coma-RMS

1.82±0.78

1.46±0.93*

1.26±0.81*#

1.14±0.79*#&

21.115

< 0.001

SA-RMS

0.45 ± 0.36

0.78 ± 0.55*

0.54 ± 0.40#

0.54 ± 0.39#

5.982

0.003

  1. Abbreviations: HOA-RMS root-mean-square of the total higher-order aberrations; Coma-RMS root-mean-square of coma; SA-RMS root-mean-square of spherical aberration
  2. *: significant difference compared with preoperative baseline (P < 0.05)
  3. #: significant difference compared with postoperative 1-month (P < 0.05)
  4. &: significant difference compared with postoperative 6-month (P < 0.05)
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BMC Ophthalmology

ISSN: 1471-2415

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