A comparative study concerning the treatment of active toxoplasmic retinochoroiditis with argon laser and medication (follow-up 2-9 years).

Thirty-three eyes (i.e. 33 patients) with active toxoplasmic retinochoroiditis were treated and followed up for a 2 to 9 year period. The patients were divided into two groups. The first was treated with laser, while the second received medication. The division into two groups was made in order to discover possible differences between the two groups concerning success rate, time of regression of the lesion recurrences and complications. The study showed the following results: there was no difference as to the rate of overall success between the two groups. The laser produced no result in the cases where the active retinochoroidal lesion was larger than 2 disc diameters. The regression of the active lesion in the laser group was accomplished in 25-50 days, while in the medication group took 50-150 days. Recurrences after treatment were found in both groups. However, the starting point of recurrences differed in each group.