Definition: Given an abstract, generate a keyword (a noun phrase) that best describes the focus or contribution of the paper. Such keywords can be directly from the given abstract or outside it.
Input: Abstract: Supramaximal medial and lateral rectus surgery was performed to correct horizontal deviations in seven cases of sixth nerve palsy and three cases of third nerve palsy, with satisfactory results in most cases. The advantages and disadvantages of such procedures are discussed.

Adult