Color blindness affects a significant number of people worldwide, with approximately 1 in 12 men and 1 in 200 women experiencing some degree of color blindness. The most common type is known as 'red-green color blindness.' Color blindness is a condition where the retinal cone cells respond to light differently than normal, leading to color confusions or the inability to distinguish certain pairs of colors.

The Color Blindness Exam app is designed to help both adults and kids test their color vision quickly and easily. It is adapted from Dr. Shinobu Ishihara's renowned color perception test, which is widely used by eye care professionals globally.

The exam presents a series of test images, each potentially displaying a number. Users are required to type the number they see in the image and tap the "Done" button. If no number is visible, users can select the "Pass" button.

Please note that this test is not a substitute for a diagnosis conducted by an eye care professional. It serves as a convenient tool for individuals to assess their color vision.