Eye chart smaller symbols until the person cannot identify the symbols. The smallest symbols that can be reliably identified is considered the person's visual acuity. The Snellen chart is the most widely used. Alternative types of eye charts include the logMAR chart, Landolt C, E chart, Lea test, Golovin–Sivtsev table, the Rosenbaum chart, and the Jaeger chart. Charts display several rows of optotypes, which are standardized symbols for testing vision. Optotypes are usually letters, numbers, or geometric symbols. Each row of the chart depicts optotypes of a different size. Typically the largest optotypes are in the top row. The optotypes become progressively
Eye of Horus to his father, Osiris, in hopes of restoring his life. Hence, the eye of Horus was often used to symbolise sacrifice, healing, restoration, and protection. The Eye of Horus can be represented as a solar, lunar, and ornithological symbol. This is due to Horus being a solar and lunar deity as well as having a bird-like appearance. There are seven different hieroglyphs used to represent the eye, most commonly "ir.t" in Egyptian, which also has the meaning "to make or do" or "one who does". In Egyptian myth the eye was not the passive organ of sight but more an