When should the amount of surgery be adjusted during conventional muscel surgery?

The present study is the continuation of a previous one on the parameters to calculate the amount of conventional eye muscle surgery (ESA, 2003 [3]). We concluded that intra-operative data are useful additional parameters that, when taken into account, significantly reduce the variance of results. The aim of the new study is to demonstrate which cases of concomitant strabismus require intra-operative adjustment and by how much.