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.
A creole language is a stable natural language developed from a mixture of different languages. While the concept is similar to that of a mixed or hybrid language, in the strict sense of the term, a mixed/hybrid language has derived from two or more languages, to such an extent that it is no longer closely related to the source languages.