Effect of Anesthetic eye drops Unweighted Weighted Pc2(4%) O Ophthalmologic practice Conjunctiva (N=75) O Ophthalmologic practice Conjunctiva(N=75) O Laboratory Conjunctiva(N=116) gl Ophthalmolog O Laboratory Conjunctiva( N=116) Laboratory a Aphtha malacic +-- aboratory 02040.60.8 p=0.001 Pc1(13% Pc1(54%) Fig S1CFig.S1C