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. 2022 Oct 10;43(3):1027–1062. doi: 10.1007/s10792-022-02480-6

Table 1.

Observational studies comparing refractive errors and biometric measurements between IVB, IVR, diode LPC treatment modalities for TR-ROP

Authors/first author Year Participants Treatment modalities being compared Outcomes Risk-of-bias assessment with ROBINS-I tool9
Kang et al. [10] 2019

30 eyes (diode LPC group)

20 eyes (IVB group)

2 eyes (IVR group)

IVB (0.625 mg/0.025 mL),

IVR (0.2 mg/0.02 mL),

Diode LPC

No differences between groups at age of 4 years in:

 Mean spherical power (P = 0.490, ANOVA test),

 Mean cylinder power (P = 0.290, ANOVA test),

 Mean spherical equivalence (P = 0.600, ANOVA test)

Moderate overall risk of bias
Kabatas et al. [11] 2017

24 eyes of 12 type 1 ROP infants (IVB group),

12 eyes of 6 type 1 ROP infants (IVR group),

72 eyes of 36 type 1 ROP infants (diode LPC group)

IVB (0.625 mg/0.025 mL, 100 mg/ 4 ml flacon) with diode LPC,

IVR (0.25 mg/0.025 mL, 10 mg/1 ml flacon) with diode LPC, IVB (0.625 mg/0.025 mL, 100 mg/4 ml flacon) with IVR (0.25 mg/0.025 mL, 10 mg/1 ml flacon)

No differences between groups in

 Mean spherical equivalent at 18 months CA (P = 1.000, P = 1.000, P = 1.000 respectively),

 Mean cylindrical value at 18 months CA (P = 0.456, P = 1.000, P = 1.000 respectively)

Serious overall risk of bias due to baseline and time-varying confounding
Gunay et al. [12] 2017

55 infants with TR-ROP (IVB group)

22 infants with TR-ROP (IVR group)

57 infants with TR-ROP (diode LPC group)

IVB (0.625 mg/0.025 mL),

IVR (0.25 mg/0.025 mL),

Diode LPC

No differences between groups in:

 Spherical equivalent at 1.5 years CA (P = 0.130, ANOVA test),

 Rate of myopia (SE ≤ − 0.25 D) at 1.5 years CA (P = 0.080, ANOVA test),

 Rate of high myopia (SE ≤ − 5.0 D) at 1.5 years CA (P = 0.970, ANOVA test)

 Mean AL at 1.5 years CA (P = 0.390, ANOVA test)

Critical overall risk of bias due to baseline and time-varying confounding

IVB intravitreal bevacizumab, IVR intravitreal ranibizumab, LPC laser photocoagulation, TR-ROP treatment-requiring retinopathy of prematurity, ROBINS-I risk of bias in non-randomized studies of interventions, ROP retinopathy of prematurity, ANOVA analysis of variance, SE spherical equivalent, D diopter(s), CA corrected age, AL axial length (mm)