Accuracy and safety of partial thickness femtosecond laser radial and arcuate keratotomy incisions in porcine eyes.

Background: To evaluate the accuracy and safety of micro radial and arcuate keratotomy incisions constructed by a femtosecond laser system with a curved contact patient interface in porcine eyes.

Methods: Partial thickness micro radial and arcuate keratotomy incisions were constructed in porcine eyes with a femtosecond laser system and evaluated for precision of depth, quality, and consistency. Optical coherence tomography was used to determine the accuracy and precision of incision depth.

Femtosecond laser-assisted capsulotomy with capsular marks for toric IOL alignment: Comparison of tensile strength with standard femtosecond laser capsulotomy.

Purpose: To compare the capsulotomy rim strength with capsular marks (CMs) to the rim strength without CMs in porcine eyes, and to demonstrate the practicality of CMs for intraoperative toric intraocular lens (IOL) alignment.

Setting: LENSAR facility, Orlando, Florida, USA.

Design: Laboratory study.

Defining the ideal femtosecond laser capsulotomy.

Purpose: We define the ideal anterior capsulotomy through consideration of capsular histology and biomechanics. Desirable qualities include preventing posterior capsular opacification (PCO), maintaining effective lens position (ELP) and optimising capsular strength.

Methods: Laboratory study of capsular biomechanics and literature review of histology and published clinical results.

Unexpected bond activations promoted by palladium nanoparticles.

Thioether-phosphines, 1 and 2, were applied for the stabilisation of palladium nanoparticles (PdNPs) synthesised by a bottom-up methodology, using [Pd2(dba)3] as an organometallic precursor. For the phenyl containing ligand 1, small (d(mean) = 1.6 nm), well-defined and dispersed nanoparticles were obtained; however, ligand 2 involving a long alkyl chain led to agglomerates.

Sealability of ultrashort-pulse laser and manually generated full-thickness clear corneal incisions.

Purpose: To compare the sealability and geometry of full-thickness clear corneal incisions (CCIs) created manually or with an ultrashort-pulse laser.

Setting: Lensar, Inc., Orlando, Florida, USA.