Given below is an online test for visual acuity using the E Chart, a chart with the letter 'E' in different directions (up, down, right and left) and sizes. This E chart visual acuity or eye vision ...

Astigmatism is a very common condition in which the eye is oval-shaped ... An ophthalmologist may test a person’s night vision by using the Pelli-Robson Contrast Sensitivity Chart.