Comparison of stromal hydration techniques for clear corneal cataract incisions: conventional hydration versus anterior stromal pocket hydration.

Anterior stromal pocket hydration was compared with conventional hydration for preventing wound leak after 2.8 mm uniplanar clear corneal incisions (CCIs) in patients having routine cataract surgery. Conventional hydration involves hydration of the lateral walls of the main incision with visible whitening of the stroma.

The effect of preoperative keratometry on visual outcomes after moderate myopic LASIK.

Purpose: To evaluate visual outcomes in moderately myopic eyes with flat and steep corneas (preoperatively) that have been treated with laser-assisted in situ keratomileusis (LASIK).

Patients And Methods: Records of ninety-six eyes with average preoperative keratometry (K) values between 39.9 and 42.

Tomographic corneal profile analysis of central toxic keratopathy after LASIK.

Purpose: To describe a case of bilateral central toxic keratopathy (CTK) in a post-laser in situ keratomileusis-treated patient using tomographic methods for more than a 1-year follow-up.

Methods: Case report and literature review.

Results: Tomographic analysis of a patient with bilateral CTK revealed flattening of the anterior cornea curvature and thinning at the level of anterior stromal bed, with minimal changes of the posterior curvature.

A comparison of the American Society of Cataract and Refractive Surgery post-myopic LASI K/PRK intraocular lens (IOL) calculator and the Ocular MD IOL calculator.

Background: To compare the average values of the American Society of Cataract and Refractive Surgery (ASCRS) and Ocular MD intraocular lens (IOL) calculators to assess their accuracy in predicting IOL power in patients with prior laser-in-situ keratomileusis (LASIK) or photorefractive keratectomy.

Methods: In this retrospective study, data from 21 eyes with previous LASIK or photorefractive keratectomy for myopia and subsequent cataract surgery was used in an IOL calculator comparison. The predicted IOL powers of the Ocular MD SRK/T, Ocular MD Haigis, and ASCRS averages were compared.

In vivo and in vitro analysis of topographic changes secondary to DSAEK venting incisions.

Introduction: Descemet's stripping automated endothelial keratoplasty (DSAEK) venting incisions may induce irregular corneal astigmatism. The study examines in vivo and in vitro astigmatic effects of venting incisions.

Patients And Methods: In vivo analysis examined eleven eyes of eleven patients who had received DSAEK with venting incisions.

Comparison of Hanna and Hessburg-Barron trephine and punch systems using histological, anterior segment optical coherence tomography, and elliptical curve fitting models.

Background: This study analyzes the characteristics of donor and recipient tissue preparation between the Hessburg-Barron and Hanna punch and trephine systems by using elliptical curve fitting models, light microscopy, and anterior segment optical coherence tomography (AS-OCT).

Methods: Eight millimeter Hessburg-Barron and Hanna vacuum trephines and punches were used on six cadaver globes and six corneal-scleral rims, respectively. Eccentricity data were generated using measurements from photographs of the corneal buttons and were used to generate an elliptical curve fit to calculate properties of the corneal button.

Femtosecond-assisted preparation of donor tissue for Boston type 1 keratoprosthesis.

We describe a technique for femtosecond laser-assisted preparation of donor tissue for Boston type 1 keratoprosthesis to provide accurate double punching of the donor tissue for optimized alignment in the visual axis. The technique was reproducibly performed in four donor corneas mounted in an artificial anterior chamber. This technique can provide optically centered donor tissue with smooth trephinated edges.

Retained nuclear fragment found during Descemet-stripping automated endothelial keratoplasty.

An 82-year-old man with a 2- to 3-month history of progressive visual loss due to corneal edema was referred to our center. The ocular history was significant for uneventful cataract surgery approximately 3 years earlier. Pseudophakic bullous keratopathy was diagnosed and Descemet-stripping automated endothelial keratoplasty (DSAEK) performed.

Simultaneous and sequential implantation of intacs and verisyse phakic intraocular lens for refractive improvement in keratectasia.

Purpose: To evaluate the safety, efficacy, and visual outcomes of simultaneous and sequential implantation of Intacs (Addition Technology, Inc, Sunnyvale, CA) and Verisyse phakic intraocular lens (AMO, Santa Ana, CA) in selected cases of ectatic corneal disease.

Setting: John A. Moran Eye Center, University of Utah, UT.

Intrastromal corneal ring segments for post-LASIK ectasia complicated by persistent pain.

A 33-year-old man who was 2 years post laser in situ keratomileusis was found to have corneal ectasia. He was intolerant of rigid gas-permeable contact lenses and eventually chose to have placement of intrastromal corneal ring segments (ICRS) (Intacs) in the right eye. Two ICRS were implanted without complication, and postoperative examination showed improved visual acuity and decreased corneal elevation on scanning-slit tomography imaging.

Hemostatic dressings for the first responder: a review.

The military is interested in finding a hemostatic dressing that is effective in controlling hemorrhage from combat wounds, relatively inexpensive, and easy to transport. The fibrin dressing has existed for decades, but the military has been reluctant to use the dressing because it is not Food and Drug Administration approved, fairly expensive, and difficult to apply on certain wounds. Newer dressings such as the microporous polysaccharide hemosphere (TraumaDEX), mineral zeolite (QuikClot), poly-N-acetylglucosamine (HemCon), and microporous hydrogel-forming polyacrylamide (BioHemostat) dressings have addressed these deficiencies in that they are relatively inexpensive, easy to transport, and easy to apply.