PURPOSE To compare Orbscan II and ultrasonic pachymetry for measurement of central corneal thickness (CCT) in eyes scheduled for keratorefractive surgery. METHODS CCT was measured using Orbscan II (Bausch & Lomb, USA) and then by ultrasonic pachymetry (Tomey SP-3000, Tomey Ltd, Japan) in 100 eyes of 100 patients with no history of ocular surgery scheduled for excimer laser refractive surgery....

Phosphatidylcholine (PC) synthesis in animal cells is generally controlled by cytidine 5'-triphosphate (CTP):phosphocholine cytidylyltransferase (CCT). This enzyme is amphitropic, that is, it can interconvert between a soluble inactive form and a membrane-bound active form. The membrane-binding domain of CCT is a long amphipathic alpha helix that responds to changes in the physical properties o...

purpose: to compare orbscan ii and ultrasonic pachymetry for measurement of central corneal thick-ness (cct) in eyes scheduled for keratorefractive surgery. methods: cct was measured using orbscan ii and then by ultrasonic pachymetry in 100 eyes of 100 patients who were scheduled for excimer laser refractive surgery. paired t-test was used for comparing the results. results: using an acoustic f...

Cardiac CT (CCT) is rapidly evolving as a noninvasive imaging modality. Newer technologic developments in CCT allow the comprehensive assessment of cardiovascular anatomy, including the coronary arteries. There are special considerations regarding obtaining and accurately interpreting CCT studies. On completion of this article, the reader should be able to describe the issues related to adequat...

This white paper discusses the role of root-cause analysis (RCA) in managing infrastructure availability and performance. By comparing two approaches – rules-based analysis and the EMC IonixTM Codebook Correlation TechnologyTM (CCT) – this paper illustrates the unique advantages of CCT and explains why CCT is the only viable method for automating the analysis of any type of problem in any netwo...

Background Nigeria accounts for a significant proportion of global maternal mortality figures with little progress made in curbing poor health indices. In a bid to reverse this trend, the Government of Nigeria initiated a conditional cash transfer (CCT) programme to encourage pregnant women utilize services at designated health facilities. This study aims to understand experiences of women who ...

To the Editor: The same stromal opacities found in the rabbit study by Salomão et al, 1 which appeared in the June 2011 issue of the Journal of Refractive Surgery, have been previously described as frequent but asymptom-atic complications after corneal cross-linking (CXL) in cases of steep corneas with keratometry values Ͼ54.00 diopters (D). 2-4 Raiskup et al 4 demonstrated that infusion with a...

OBJECTIVE To determine the values of, and study the relationships among, central corneal thickness (CCT), intraocular pressure (IOP), and degree of myopia (DM) in an adult myopic population aged 20 to 40 years in Almeria (southeast Spain). To our knowledge this is first study of this kind in this region. METHODS An observational, descriptive, cross-sectional study was done in which a sample o...

Patients with parapneumonic effusions (PPE) measuring <1 cm by lateral decubitus radiograph (LDR) or <5 cm by lateral erect radiograph (LER) do not require thoracentesis. No such data exist for chest computed tomography (CCT). The objective of this study was to identify a PPE measurement by CCT that indicates the need for thoracentesis. A secondary data analysis of two pneumonia databases was c...

PURPOSE We evaluated ocular optical components and their interrelationships in myopic Korean patients. METHODS In this prospective observational study, 1,011 consecutive patients were recruited from a refractive surgery clinic. The best-corrected visual acuity was >20 / 20 in all patients. The refractive error, axial length (AL), anterior chamber depth (ACD), lens thickness (LT), and vitreous...