Microscratch resistance of ophthalmic coatings on organic lenses

► Scratch resistance of ophthalmic coatings is studied by using microscratch testing. ► The Bayer abrasion resistance is predicted by the study of the residual scratch depth. ► Surface damage and fracture mechanisms of ophthalmic coatings are identified. ► The effect of the tip scratch velocity is explained in terms of Eyring's formalism.