After detachment surgery without drainage there can be: (1) convex or (2) concave "residual" detachment and (3) rhegmatogenous residual detachment with new contour (reoperation needed). Favorable longterm results after minimal surgery (6.5% "late" redetachment during 11 years postoperatively) and use of minimal surgery as reoperation (50% a balloon) for reattaching the retina do not support the necessity of a prophylactic cerclage as primary operation, even not as reoperation per se. A simple alternative to a surgical prophylaxis represents a so-called "passive" prophylaxis consisting in explaining the visual field to the patient and asking him to test it regularly.
Primary treatment of a PVR detachment stage B or C1/C2 with cryopexy and segmental buckling and nondrainage seems justified to test for the chance of PVR-regression. The retina was reattached in 8 of 10 patients x 7 1/2 years postoperatively after primary operation without reoperation or vitrectomy and visual acuity was 20/60-20/25 in every third patient, thus implying a lack of late serious complications.
79 consecutively treated very low birth weight newborns (less than 1000 g) were systematically examined in the postpartal period and after a follow-up of 2 to 5.5 years. Retinopathy of prematurity was found in 19 eyes of 10 children (maximum stage III-IV). At a minimum age of 2 and maximum age of 6 years, when 42 of these children could be reexamined, including all children with earlier retinopathy of prematurity, 10 children suffered from minimal to moderate retinal pathology due to inactive retinopathy of prematurity (4 eyes with dragging of vessels and macula), but 9 children exhibited a minor visual disability due to strabism, higher ametropia, anisometropia, and amblyopia. This stresses the need for opthalmological follow-up in low birth weight babies with 6 months and 3-4 years of age.
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