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Table 2 Postoperative symptoms in arm A (n = 39 bilateral cases) and arm B (n = 33 bilateral cases)

From: Comparison of transepithelial and conventional photorefractive keratectomy in myopic and myopic astigmatism patients: a randomized contralateral trial

 

Day

Method

Pain

FBS

Burning

Photophobia

Tearing

Dry eye

Arm A

1

tPRK

4.18 ± 3.68*

5.38 ± 3.64**

4.54 ± 3.32*

6.67 ± 3.40

5.77 ± 3.76

3.13 ± 3.30

mPRK

2.49 ± 3.15

2.77 ± 3.23

3.31 ± 3.14

6.31 ± 3.51

5.10 ± 3.63

2.85 ± 3.00

3

tPRK

2.21 ± 2.34

3.21 ± 3.00

2.90 ± 3.11

5.15 ± 3.00

3.08 ± 2.64

2.56 ± 2.76

mPRK

1.85 ± 2.13

2.85 ± 2.67

2.90 ± 3.08

5.08 ± 2.97

2.79 ± 2.53

2.62 ± 2.65

7

tPRK

0.37 ± 0.83

0.58 ± 1.07

0.37 ± 0.68

1.68 ± 1.70

0.16 ± 0.50

2.83 ± 1.98

mPRK

0.53 ± 1.43

0.79 ± 1.55

0.26 ± 0.65

1.68 ± 1.77

0.26 ± 0.65

3.06 ± 2.01

Arm B

1

tPRK

5.52 ± 3.89**

5.94 ± 3.61*

5.73 ± 3.92**

5.30 ± 3.60

5.09 ± 3.20

3.61 ± 3.56

aaPRK

3.21 ± 3.18

4.27 ± 3.44

3.91 ± 3.31

5.18 ± 3.55

4.73 ± 3.40

3.39 ± 3.40

3

tPRK

3.45 ± 3.12

3.82 ± 3.32

2.97 ± 2.87

5.21 ± 3.26

3.18 ± 3.12

3.88 ± 3.42

aaPRK

3.24 ± 2.67

3.94 ± 2.91

3.15 ± 2.88

5.33 ± 3.13

3.09 ± 3.06

3.91 ± 3.37

7

tPRK

0.64 ± 1.74

0.71 ± 1.64

0.86 ± 1.75

2.79 ± 2.97

0.36 ± 1.34

3.93 ± 2.06

aaPRK

0.50 ± 1.40

1.21 ± 2.64

1.79 ± 2.69

3.36 ± 3.15

0.86 ± 1.99

3.93 ± 2.02

  1. FBS Foreign body sensation, tPRK Transepithelial photorefractive keratectomy, mPRK Mechanical PRK, aaPRK Alcohol-assisted PRK
  2. Data are presented as Mean ± SD
  3. Bold values are statistically significant
  4. *P<0.01
  5. **P<0.001