One of the most common surgeries in ophthalmology is strabismus surgery. The purpose of this study is evaluation of effects of the amount of tenon dissection in strabismus surgeries outcome.

The patients that come to our study have the range of age between 6-50 years old and have strabismus without any history of ocular surgery. Strabismus operation technique was similar in both groups except the amount of tenon dissection

We divided 54 patients in two case and control groups with 27 patients in each group. There is no significant difference between two groups in amount of strabismus correction in all 3 types of operations. In the BMR group for every 1 mm of recession, we have strabismus correction about 2.59±0.39 prism diopter in case group and 2.16±0.99 prism diopter in control group. (P- Value>0.05) In the esotropia and R&R group for every 1 mm of recession or resection, we have strabismus correction about 3.38±0.31 prism diopter in case group and 3.21±0.18 prism diopter in control group. (P-Value>0.05) In the BLR group for every 1 mm of recession, we have strabismus correction about 2.34±0.24prism diopter in case group and 2.17±0.24prism diopter in control group. (P-value>0.05) In the exotropia and R&R group for every 1 mm of recession or resection, we have strabismus correction about 3.12±0.46prism diopter in case group and 2.72±0/28prism diopter in control group. (P-value>0.05)

The amount of tenon dissection has not significant effect on the surgical dosage of correction, so the strabismus surgery with minimal tenon dissection is recommended due to less tissue damage and less longtime complications.