The Tono-Pen is a handheld device thatâs shaped like a large marker. It provides a digital readout of eye pressure. Your doctor can use it to touch your eye and measure pressure. Though useful in many cases, the Tono-Pen is considered less accurate than the Goldmann tonometer in people with normal corneas.
The English language has two types: British English and American English. Other variations such as Oxford English, Standard English, or other variants are mere adaptations of the two types (especially for consistency or reference use, e.g., in media or publication). British English.
But not all input is the same. There are, roughly speaking, two basic types of English input: formal and informal. Formal English is used in âseriousâ texts and situations â for example, in official documents, books, news reports, articles, business letters or official speeches. Informal English is used in everyday conversations and in personal letters.