BACKGROUND The study presented here aims to optimize the accuracy of intraocular lens (IOL) power calculations in patients after DMEK by evaluation of the impact of the altered anterior/posterior corneal curvature relationship. METHODS Scheimpflug-based Oculus Pentacam imaging was performed after DMEK surgery for Fuchs endothelial dystrophy. The IOL power was calculated for all patients by ra...

Breakdown of the pollination barrier of self-incompatibility (SI) in older flowers, a phenomenon known as pseudo-self-compatibility or transient SI, has been described as an advantageous reproductive assurance strategy that allows selfing after opportunities for out-crossing have been exhausted [1-9]. Pseudo-self-compatibility is quite prevalent as a mixed mating strategy in nature, but the und...

Many models of bursting electrical activity (BEA) in pancreatic β-cells have been proposed. BEA is characterized by a periodic oscillation of the membrane potential consisting of a silent phase during which the membrane potential is varying slowly and an active phase during which the membrane potential is undergoing rapid oscillations. An important experimental observation of BEA is a correlati...

PURPOSE To investigate the accuracy of a new optical biometer for intraocular lens (IOL) power calculation in eyes undergoing cataract surgery. METHODS Consecutive eyes of patients undergoing cataract surgery with the same IOL model were enrolled in a prospective cohort study. Axial length (AL) and corneal power were measured with an optical biometer based on optical low-coherence interferome...

PURPOSE To evaluate the accuracy of the SRK/T formula using ultrasound (US) biometry in predicting a target postoperative refraction of ±1.00D in eyes with medium axial length (AL) that underwent phacoemulsification. METHODS The present study was a retrospective analysis, which included 538 eyes with an AL from 22.0 to 24.60 mm that underwent phacoemulsification and foldable intraocular lens ...

Abstract Background UK academic foundation programme (AFP) is an important steppingstone into surgical training, but there paucity in undergraduate preparedness. We aimed to evaluate the effectiveness of a virtual webinar series prepare students for applications and interviews. Method A cross-sectional study was conducted between 18/10/2020 – 19/12/2020. Ethical approval not required as this ev...

Given a knot K in the 3-sphere, let QK be its fundamental quandle as introduced by D. Joyce. Its first homology group is easily seen to be H1(QK) ∼= Z. We prove that H2(QK) = 0 if and only if K is trivial, and H2(QK) ∼= Z whenever K is non-trivial. An analogous result holds for links, thus characterizing trivial components. More detailed information can be derived from the conjugation quandle: ...

PURPOSE To present the prospective application of the Orbscan II central 2-mm total-mean corneal power obtained by quantitative area topography in intraocular lens (IOL) calculation after refractive surgery. METHODS Calculated and achieved refraction and the difference between them were studied in 77 eyes of 61 patients with previous radial keratotomy (RK), RK and additional surgeries, myopic...

The recent identification of the long elusive pollen determinant of self-incompatibility (SI) in the Brassicaceae family (Schopfer et al., 1999) marks a major advance in SI research. Not only is it now unambiguously proven that in the genus Brassica SI specificity of pollen and stigma is governed by separate genes, but in addition, the availability of the pollen specificity gene opens new avenu...

The recent identification of the long elusive pollen determinant of self-incompatibility (SI) in the Brassicaceae family (Schopfer et al., 1999) marks a major advance in SI research. Not only is it now unambiguously proven that in the genus Brassica SI specificity of pollen and stigma is governed by separate genes, but in addition, the availability of the pollen specificity gene opens new avenu...