TWO CLINICAL CHARTS.

Clinical assessment of two new contrast sensitivity charts.

BACKGROUND Contrast sensitivity measurement in UK clinical practice is most commonly performed with the Pelli-Robson chart. AIMS To compare the repeatability of two new contrast sensitivity charts and to measure their agreement with the Pelli-Robson charts. METHOD Contrast sensitivity was measured monocularly using two versions of the Mars letter contrast sensitivity chart, two presentation...

Small Clinical Charts

Clinical growth charts for pre-school children.

OBJECTIVE Growth standards are indicators for normal growth of the children and growth charts are important tools for their growth monitoring. Children from different populations are different in their growth pattern, it is important to create national standards for the growth of children in each population to develop local growth charts, and since these were not available in the Kingdom of Sau...

Computerized preparation of two-way analysis of variance control charts for clinical chemistry.

A system of quality-control data analysis by computer is described, in which two-way analysis of variance is used for partitioning sources of laboratory error into day-to-day, within-day, betweenpools and additivity variation. The partition for additivity is described in detail as to its advantages and applications. In addition, control charts based on two-way analysis of variance computations ...

The role of contrast sensitivity charts and contrast letter charts in clinical practice

Russell L Woods PhD MBCO FAA0 and Practitioners frequently make clinical decisions based on changes in visual acuity. HowJoanne M Wood PhD MBCO FAA0 ever, acuity is recognised to be only one aspect of visual performance. In recent years, School of Optometry, Queensland Univera number of clinical chart-based tests which measure different aspects of vision based sity of Technology on contrast sen...