Exclusion of an exotic top quark with -4/3 electric charge using soft lepton tagging.

We present a measurement of the electric charge of the top quark using pp collisions corresponding to an integrated luminosity of 2.7 fb(-1) at the CDF II detector. We reconstruct tt events in the lepton + jets final state.

More assured in-the-bag placement of C-loop posterior chamber intraocular lenses.

A bimanual technique for inserting C-loop intraocular lenses using a lens haptic loop to guide the superior lens haptic into the capsular bag is presented. The technique eliminates several shortcomings of conventional techniques, allowing more assured in-the-bag placements of C-loop intraocular lenses.

Glaucoma surgery in Nigerian eyes: a five-year study.

A five-year study of 419 sclerectomies and 612 trabeculectomies has been reported. Early and late postoperative complications have been discussed and the relative effectiveness of the operations in controlling intraocular pressure in chronic simple and chronic angle closure glaucoma compared.