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
Chocolate letter Chocolate letter Chocolate letters are a form of candy associated with the Dutch holiday of Sinterklaas (Saint Nicholas). Celebrants of the Sinterklaas celebration are traditionally given their initials made out of chocolate, either on Sinterklaas Eve, which is the fifth of December each year, or during the morning on Sinterklaas Day, which is the sixth day of December. Various sizes, types and flavours are available. In order to use the same amount of chocolate for each letter the manufacturer varies the thickness of the letter. This way one letter is not favoured over another, for example, with wide letters such