Therapeutic Femtosecond Laser-Assisted Lamellar Keratectomy for Multidrug-Resistant Nocardia Keratitis.

Purpose: To describe the novel use of femtosecond laser technology for therapeutic resection of infectious foci in a case of multidrug-resistant Nocardia asteroides keratitis.

Methods: A 30-year-old man presented with a corneal infiltrate. Cultures were taken, and fortified vancomycin and tobramycin were initiated.

Femtosecond laser-assisted cataract surgery in a patient with posterior chamber phakic intraocular lens.

We describe a case of modified femtosecond laser settings for cataract extraction in a patient with a posterior chamber phakic intraocular lens (PIOL), to avoid incomplete treatment patterns and treatment displacement. Modification of laser settings (increased depth for the capsulotomy, increased vertical spot spacing for the capsulotomy and increased anterior and posterior capsule safety margins for lens fragmentation) seems to make femtosecond laser-assisted cataract surgery feasible in patients with posterior chamber PIOLs, as complete treatment patterns are achieved.

Calculation of ophthalmic viscoelastic device-induced focus shift during femtosecond laser-assisted cataract surgery.

Purpose: To assess if a change in refractive index of the anterior chamber during femtosecond laser-assisted cataract surgery can affect the laser beam focus position.

Methods: The index of refraction and chromatic dispersion of six ophthalmic viscoelastic devices (OVDs) was measured with an Abbe refractometer. Using the Gullstrand eye model, the index values were used to predict the error in the depth of a femtosecond laser cut when the anterior chamber is filled with OVD.

Operating times of experienced cataract surgeons beginning femtosecond laser-assisted cataract surgery.

Purpose: To compare the time a patient spent in the operating room during femtosecond laser-assisted with that during traditional cataract surgery.

Setting: Academic tertiary referral center.

Design: Retrospective review.