Eagle Eye Products EEP || Eye Test Chart Set || 4 Charts, Alphabet, E Type, C Type, Number Trail Frame

About this product

The chart is displayed at a specific distance (usually 20 feet) from the patient.The patient is asked to read the letters, starting from the top row and working down to the smallest line they can clearly see.The visual acuity is expressed as a fraction, with 20/20 indicating normal vision. For example, 20/40 means the patient can see at 20 feet what a person with normal vision can see at 40 feet.The Snellen chart is used to determine the need for corrective lenses or to monitor vision changes over time.The Snellen chart, a standard tool in eye exams, is used to measure visual acuity by presenting a series of letters in decreasing sizes. The most common . This chart is used to assess how well a patient can see at a distance, typically 20 feet.