Simplified procedure for encapsulating cytochrome c in silica aerogel nanoarchitectures while retaining gas-phase bioactivity.

Cytochrome c (cyt. c) has been encapsulated in silica sol-gels and processed to form bioaerogels with gas-phase activity for nitric oxide through a simplified synthetic procedure. Previous reports demonstrated a need to adsorb cyt.

Two cases of toxic anterior segment syndrome from generic trypan blue.

We report 2 cases of toxic anterior segment syndrome (TASS) resulting from impurities in generic trypan blue that was administered intracamerally to improve visualization of the capsule. Histology of the corneal buttons revealed foci of inflammatory response and complete loss of endothelial cells. Cell culture analysis showed that the generic trypan blue was approximately twice as toxic to the endothelium as a proprietary trypan blue.

Prevention of endophthalmitis.

Purpose: To report the incidence of postoperative endophthalmitis in a series of patients who had cataract surgery with intraocular lens (IOL) implantation and to apply guidelines toward the prevention of postoperative endophthalmitis.

Setting: The Buzard Eye Institute for Corneal, Refractive and Cataract Surgery, Las Vegas, Nevada, USA.

Methods: In this prospective institutional study, 5,131 cataract surgery cases with IOL implantation were performed from 1998 to 2002 by 1 surgeon at a single institute.

Laser in situ keratomileusis for the correction of residual ametropia after penetrating keratoplasty.

Purpose: To evaluate the safety, efficacy, and predictability of excimer laser in situ keratomileusis (LASIK) to correct residual myopia and astigmatism after penetrating keratoplasty (PKP).

Setting: Buzard Eye Institute, Las Vegas, Nevada, USA.

Methods: Twenty-six eyes had LASIK at least 1 year after PKP.