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794 results found

Normal values with Orbscan IIz corneal topography

This study aimed to establish a database of normative measurements of corneal typography in children aged 5-15 years with the Orbscan IIz corneal topography system. They assessed 100 eyes of 100 children. The mean SimK astigmatism was 0.69±0.35D. The maximum...

Outcomes of corneal collagen crosslinking (CXL) in pseudophakic bullous keratopathy (PBK)

This was a retrospective non-comparative, interventional case series of 50 eyes in 50 patients with symptomatic PBK who underwent CXL (epithelium-off). Central corneal thickness (CCT), pain score, best corrected visual acuity (BCVA), and corneal transparency were recorded at baseline; at...

Corneal lenticule allotransplant

This animal study looked at corneal lenticule allograft transplantation in rabbits. Seven rabbits underwent small incision lenticule extraction (SMILE) procedures, where their stromal lenticules were extracted and transplanted fresh into pre-prepared corneal stromal pockets of seven recipient eyes. Animals were...

Transcriptomic analysis of ocular tissues

Transcriptomics is defined as the analysis of the complete set of RNA transcripts present in a cell under different circumstances, quiescent versus challenge, by microarray analysis. Comparison of transcriptomes identifies genes that are differentially expressed in different cell populations under...

Inhibiting high-risk corneal allografts

The cornea is an immune privileged site and as such corneal transplants are very successful. However, in situations where this privilege is lost the failure rises substantially. To combat rejection inhibition of the immune responses depends on steroids and other...

Descemetorhexis without endothelial keratoplasty

This retrospective study examined outcomes of the largest reported series of eyes, which underwent Descemetorhexis without endothelial keratoplasty (DWEK) for Fuch’s endothelial dystrophy with mean 10 months of follow-up. Seventeen eyes were included in analysis; with 82.4% achieving corneal clearance...

BESTi: a new index to detect subclinical keratoconus

In this multicentre, case-control study, the authors develop a new index, named Boosted Ectasia Susceptibility Tomography Index (BESTi), to detect early cases of keratoconus. This index was derived from multiple logistic regression analysis of 22 variables of tomography scans. The...

Corneal suture sample evaluation

This is a prospective study of 35 patients’ suture samples taken from a tertiary cornea clinic, Miami, Florida, with a history of penetrating keratoplasty. The aim is to study the relationship between corneal suture bacteriology, biofilm and the clinical setting,...

MicroRNA inhibits corneal neovascularisation

MicroRNAs (miR) are small non-coding RNA that target mRNA for destruction. MiR target about 30% of the protein coding genes and fine tune their expression. MiR have been shown to be involved in several cellular processes including cell cycle, tissue...

Platelet rich fibrin membrane for descemetocele

This case series described the use of a novel technique in the treatment of descemetocele. Three patients developed descemetoceles following infective keratitis with impending risk of corneal perforation. Platelet rich fibrin (PRF) membrane was prepared using 8ml of fresh venous...

Central corneal and epithelial thickness measured by Fourier domain OCT

This study examined intraobserver and interobserver reproducibility of corneal thickness (CT) and epithelial thickness (ET) measurement of Fourier domain OCT (RTVue) in 23 healthy volunteers. RTVue is capable of producing 26,000 A scans per second with depth resolution of 5µm....

Differences of the anterior segment parameters in children with Down syndrome

This cross-sectional study was designed in order to demonstrate the differences in anterior segment parameters in children with trisomy 21. This is important as it may impact on surgical planning when undertaking procedures in the anterior segment such as corneal...