Getting Started. To start Vi, open a terminal or console and simply type vi (without the quotation marks) followed by the name of any existing file or a new file you want to create. Vi works in two main modes, one for editing text and the other for giving commands.To switch between the two modes you use the I and Esc keys.etting Started. To start Vi, open a terminal or console and simply type vi (without the quotation marks) followed by the name of any existing file or a new file you want to create. Vi works in two main modes, one for editing text and the other for giving commands.
Common causes of hypermobile joints. Most commonly, hypermobile joints appear without any underlying health conditions. This is called benign hypermobility syndrome since the only symptom is hypermobile joints. It can be caused by: bone shape or the depth of the joint sockets. muscle tone or strength.
Page last modified: June 14, 2009 Disorders where one eye is higher than the other often cause vertical double vision (diplopia). Common causes include: Disorders where one eye is higher than the other often cause vertical double vision (diplopia). Common causes include: 1  Ocular muscle weakness (called hyper deviation).2  Central ocular control disturbances (here it is called skew).3  Otolithic imbalance (also called skew).hen it occurs even when both eyes are viewing, it is called a hyper deviation. Hyperphoria and hyperdeviation generally refer to the situation where the cause is known. For example, ocular palsies such as 4th nerve palsy can cause a hyper deviation or phoria.