The authors operated 24 adult patients with strabismus (20 with concomitant, 4 with paralytic) aged 18 to 66 years, mean age 30.5 years. They focused attention on the possibility to adjust the deviation, to achieve binocular vision and postoperative diplopia. Based on their own results and those of other authors they found that surgery of strabismus in adults is not only a cosmetic operation. The possibilities to adjust the deviation are very favourable, and this applies also to achievement of binocular vision. The latter was attained in 66.7% of the patients. Postoperative diplopia in patients, incl. those with abnormal retinal correspondence, is only a rare complication. The authors recommend that adult patients with strabismus demanding operation should not be refused.