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Table 3 Differential analyses between pterygium grading and three optical quality values

From: Evaluation of optical quality in pterygium patients with a new modified sutureless and glue-free method

 

Grade 1

(n = 11)

Grade 2

(n = 19)

Grade 3

(n = 22)

F

p

OSI (OSI value)

2.76 ± 1.34

3.89 ± 1.94

8.37 ± 4.16

17.048

0.000

p1 = 0.201

p2 = 0.000

p3 = 0.000

  

MTF cut-off (c/deg)

21.16 ± 7.48

18.64 ± 10.93

9.17 ± 6.15

9.893

0.000

p1 = 0.843

p2 = 0.007

p3 = 0.001

  

Strehl ratio

0.13 ± 0.038

0.12 ± 0.037

0.10 ± 0.035

1.996

0.147

p1 = 0.515

p2 = 0.168

p3 = 0.069

  
  1. p1 Grade 1 vs Grade 2, p2 Grade 2 vs Grade 3, p3 Grade 1 vs Grade 3
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BMC Ophthalmology

ISSN: 1471-2415

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