Objective and Subjective Refractive Error Measurements in Monkeys

Objective and Subjective Measurements

Three dimensional user interfaces can help users in time-critical situations to improve their ability to solve problems. But they also may distract them from fulfilling their tasks with efficiency and effectiveness. This requests to control and limit the distraction caused by usage of those interfaces. Therefore it is necessary to measure and compare distraction caused by three dimensional user...

accuracy and repeatability of refractive error measurements by photorefractometry

purpose: to determine the accuracy of photorefraction and autorefraction as compared to cycloautorefraction and to detect the repeatability of photorefraction. methods: this diagnostic study included the right eyes of 86 children aged 7‑12 years. refractive status was measured using photorefraction (plusoptix so4, gmbh, nürnberg, germany) and autorefraction (topcon rm800, usa) with and without ...

Footwear Cushioning: Relating Objective and Subjective Measurements

Foot-ground interfaces exist in many different forms. Frequently the interface is a shoe or floor mat, and sometimes it is a carpet-like material, such as an Astroturf, providing specific biomechanical characteristics to help one perform effectively. Hence these interfaces can play an important role in improving functionality or performance, preventing injury, and reducing discomfort. Human mov...

On defining subjective and objective measurements.

Intertester agreement in refractive error measurements.

PURPOSE To determine the intertester agreement of refractive error measurements between lay and nurse screeners using the Retinomax Autorefractor and the SureSight Vision Screener. METHODS Trained lay and nurse screeners measured refractive error in 1452 preschoolers (3 to 5 years old) using the Retinomax and the SureSight in a random order for screeners and instruments. Intertester agreement...