97 cases of retinoblastoma were studied with particular attention to methods of treatment and results. The series includes 41 unilateral cases (42%) and 56 bilateral cases (58%), giving a total of 153 eyes. Of these, 19 (20%) were familial cases. Immediate enucleation was necessary in 88 of the 153 eyes; 61 eyes received conservative treatment; 4 eyes, including one bilateral case, showed spontaneous recovery (retinomas). Conservative treatment consisted of high-voltage external beam irradiation in 43 cases, cryo or photocoagulation in 12 cases, and radioactive applicators in 6 cases. The mortality-rate in cases with over 2-years follow up is of 11%. In 65% of treated cases the eye was saved, with 87% of these retaining useful or central vision. The most serious complications are radiation retinopathy (19%), cataract (16%) and exsudative retinal detachment (9%).
79 variable esotropias underwent bilateral "Fadenoperations". In the first group, the posterior fixation has been performed alone. In the second series, conventional symmetrical recessions of the medial recti have been performed during the same procedure. Two further additional weakening techniques are compared in the last group: anterior medial tenotomies and the so-called "stretch effect". Concomittant recessions considerably enforced the amount of angle reduction for distance and near without affecting precision, predictibility and stability of the results. Tenotomies and stretching procedures were followed by inconstant results.
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