Congenital iris coloboma repair with excision of colobomatous sphincter muscle.

Congenital iris colobomas do not usually present a major optical issue until the time of cataract surgery, when an intraocular lens is placed in the eye that is roughly half the diameter of the crystalline lens. Leaving the coloboma unrepaired or sutured closed without addressing the sphincter muscle in the coloboma often creates visual challenges for the eye postoperatively. The problem has previously been addressed, in part, with a technique that creates a scissor snip between the normal iris sphincter and the colobomatous iris sphincter, but still requires notable peripheral iris traction and root disinsertion for closure of the defect.

Management of common iatrogenic iris defects induced by cataract surgery.

The proximity of the iris to the instruments and currents of cataract surgery makes iatrogenic damage to the iris a common complication of cataract surgery. This article discusses techniques to prevent or minimize this damage. When damage does occur, the surgeon must decide if, when, and how to repair the damage.

Beauveria keratitis and biopesticides: case histories and a random amplification of polymorphic DNA comparison.

Purpose: The purposes of this study were to describe 2 contact lens-associated Beauveria keratitis cases and to compare the isolates of 3 contact lens-associated Beauveria keratitis cases with Beauveria-based biopesticides using random amplification of polymorphic DNA (RAPD).

Methods: A 55-year-old diabetic woman from New Mexico and a 31-year-old healthy woman from southern Wisconsin developed soft contact lens-related corneal ulcers unresponsive to topical moxifloxacin and prednisolone acetate drops. Their corneal cultures grew B.