In the letter on laser therapy for retinopathy of prematurity (ROP),1 the article by McNamara et al,2 which is referenced by the Laser ROP Study Group in Table 1 of the letter, is reported to include 53 eyes in the cryotherapy group and 63 eyes in the laser therapy group.1 However, Table 1 of the original publication reports 12 eyes treated with cryotherapy and 16 eyes treated with laser photocoagulation,2 for a total of 28 eyes rather than 116 eyes. Can the Laser ROP Study Group account for this discrepancy, and does the meta-analysis change if the numbers from the original publication are used in the meta-analysis?
Bressler SB. Laser Therapy for Retinopathy of Prematurity. Arch Ophthalmol. 1995;113(2):137. doi:10.1001/archopht.1995.01100020015007