Which type of chart is used to evaluate color blindness?

The Ishihara chart is specifically designed to evaluate color blindness, making it the correct choice for this question. This chart consists of a series of plates with colored dots arranged in a way that forms numbers or shapes, which are distinguishable to individuals with normal color vision but may not be seen or correctly identified by those with color deficiencies. The Ishihara test is widely recognized and is often the standard method employed for screening for red-green color blindness.

Other choices refer to different types of vision assessments. The Snellen chart is commonly used to measure visual acuity, primarily focusing on how well a person can see at various distances. The LogMAR chart is another tool used for assessing visual acuity but utilizes a logarithmic scale for more precise measurements. The Jaeger chart assesses near vision acuity, often used for reading tasks. In contrast, none of these charts are specifically intended to diagnose color blindness, as their primary function relates to measuring visual acuity rather than the ability to perceive colors.