Many doctors, he said, make this distinction by delegating only the objective refraction to trained staff. "In most cases, autorefraction is only a beginning point and not a substitute for ...

Objective refraction was done in all patients and subjective refraction was only done in children who have sufficient language skills. We found that the result for both subjective refraction and ...

The PARK 1 combines a non-contact pachymeter, auto-refractometer and keratometer in one unit. In addition to the objective refraction, the keratometer values and the pachymetry can be determined ...

Article: "Variability in Objective Refraction for Persons with Down Syndrome" (doi: 10.1097/OPX.0000000000001057) About Optometry and Vision Science ...

Even objective, automated vision testing—using a device called an autorefractor—gives variable results in patients with Down syndrome, reports a new study.

The aim of this study was to present methods to improve the analysis of refractive data. A comparison of methods is used to analyse refractive powers using individual powers and aggregate data ...

Dr. Applegate said these two studies led him and others to believe that wavefront-guided refraction will one day emerge as the objective gold standard for quantifying refractive errors of the eye.

Objective Pediatric Vision Screening Objective screening requires less input from children and is faster. With objective screening, the child merely needs to focus on a device long enough to ...

The Zeiss Lightsheet 7 for 3D imaging of live and cleared samples. This microscope provides fast and gentle imaging of living model organisms, tissues, and organoids as well as fixed optically cleared ...

Expansion microscopy enables nanoimaging with a conventional microscope The new objective, which the team call a Schmidt objective, has a high numerical aperture of 1.08 at a refractive index of 1.56, ...