Means and method for demonstrating the effects of low cylinder astigmatism correction

摘要

A new vision test, incorporating textual and non-textual elements in an image, is configured to demonstrate the effects of low cylinder astigmatism and other sources of blur on visual quality. The elements are designed to be noticeable, relevant, important and engaging. The new vision test may be utilized to supplement conventional vision testing.

主权项

1. A method for demonstrating the benefits of correcting blurred vision, the method comprising the steps of:
presenting a composite image to a patient with a low level of astigmatism, the composite image comprising a scene composed of textual and non-textual elements and having a number of properties, including facial recognition and expressions, high frequency detail, gratings and text, rotating gratings, array of gratings, line drawings, text in motion, text in perspective, text with distraction, and high contrast patterns; assessing the patient's reaction to the presented image without blurred vision correction; and re-assessing the patient's reaction to the presented image with blurred vision correction to demonstrate the effect of vision correction for patients with low levels of astigmatism.