Because of acute retinopathy of prematurity 14 premature infants (900–1,630 g birth weight) were treated with cryocoagulation (10 children, both eyes; 4, only one eye) between 1976 and 1984 and were followed up until they were 2–7 years of age. The average refractive power of 20 eyes (those in which refraction could be determined) was ––1.5 ± 4.1 dptr. Twelve eyes (60.0%) were hyperopic (average: +1.3 ± 0.4 dptr), and 8 eyes (40.0%) were myopic (average: ––5.7 ± 3.6 dptr). Three eyes in which cryocoagulation was done twice or three times because of a severe course developed pronounced myopia ( > 7.0 dptr). When comparing both eyes of 4 children in whom cryotherapy had been carried out in only one eye, cryotherapy was found to have no influence on refractive errors (average anisometropia +0.4 ± 0.4 dptr).

Keywords:
Retinopathy of prematurity, Cryocoagulation, Refractive errors, Premature infants
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© 1990 S. Karger AG, Basel
1990
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