[Use of botulinum toxin in the treatment of strabismus]

The authors present their two years experience with the administration of botulotoxin, the first observations in this country in connection with treatment of strabismus. Botulotoxin was injected by the i.m. route to 26 children mostly with residual deviations above 20 PD in concomitant strabismus. After a single injection the deviation declined to less than 20 PD in all patients. However persistence of deviations under 10 PD was not permanent and after reappearance of the deviation the administration of botulotoxin had to be repeated. The authors consider the therapeutic results satisfactory and draw attention to advantages and disadvantages of this method. They discuss in particular problems of the long-term effect of treatment.