PURPOSE The Ocular Response Analyzer (ORA) is a new instrument that measures the corneal biomechanical response (corneal hysteresis, CH) to rapid indentation by an air jet. CH is the difference in applanation pressures (P1, P2) between the rising and falling phases of the air jet. The investigation had two parts: a characterization study and a validation study. In the characterization study, th...

PURPOSE To investigate the correlation coefficients between intraocular pressure (IOP) before and after adjusting for central corneal thickness (CCT) and corneal biomechanical properties. PATIENTS AND METHODS A total of 218 eyes of 218 patients with primary open-angle glaucoma (mean age =71.5 years; mean spherical equivalent =-0.51 D; mean deviation determined by Humphrey visual field analyze...

This study compared the effects of complex contrast training (CCT) on measures physical fitness in stronger to weaker individuals. Forty-one participants were initially recruited for relative strength assessment back squat. Thereafter, 26 purposively assigned either a group (CCT-ST; ?1.75; n = 12) or (CCT-WK; <1.55; 14). Physical tests assessed pre- and post-six weeks CCT training. Tests inc...

PURPOSE To describe the ethnic differences in central corneal thickness (CCT) in population-based samples of ethnic Bai, Yi and Han people living in rural China. METHODS 6504 adults (2119 ethnic Bai, 2202 ethnic Yi and 2183 ethnic Han) aged 50 years or older participated in the study. Each subject underwent standardized ocular examinations and interviewer-administered questionnaires for risk ...

PURPOSE To examine the association between central corneal thickness (CCT) and glaucoma. METHODS This was a nested case-control study using 1090 subjects from an eye disease population survey in Singapore and 243 participants from a hospital glaucoma surgery clinical trial in Singapore. RESULTS Mean CCT in 938 community subjects was 539 μm ± 32 μm, and in 12 community subjects with primary ...

This study was made possible by the generous support of the American people through the United States Agency for International Development (USAID) under the terms of Cooperative Agreement No. HRN-A-00-98-00012-00. The contents are the responsibility of the FRONTIERS Program and do not necessarily reflect the views of USAID or the United States Government. SUMMARY Conditional cash transfer (CCT)...

The present studies examined whether vasopressin increases prostaglandin biosynthesis in isolated rabbit cortical collecting tubules (CCT) and whether endogenous prostaglandin biosynthesis plays a role in modulating the response of this nephron segment to vasopressin. Three groups of studies were performed. In the first group, CCT and proximal straight tubules (PST) were incubated with [(3)H]ar...

purpose: to investigate central corneal thickness (cct), endothelial cell characteristics and intraocular pressure (iop) in congenital cataract extracted eyes and to compare the results with eyes of normal age and sex matched controls. methods: cct and iop measurements and specular microscopy were performed in 31 eyes of 17 cases of extracted congenital cataracts and 40 eyes of 20 age and sex m...

Computerized cognitive training (CCT) may counter the impact of aging on cognition, but both the efficacy and neurocognitive mechanisms underlying CCT remain controversial. In this study, 35 older individuals were randomly assigned to Cogmed adaptive working memory (WM) CCT or an active control CCT, featuring five weeks of five ∼40 min sessions per week. Before and after the 5-week intervention...