The Optomap allows for a more comfortable retinal exam. Panoramic 200 Retinal Image - Click for hi resolution image. The top image to the right compares the doctor's view of your eye through an undilated pupil with an instrument called a direct ophthalmoscope (inner ring).
Mobile device. A mobile device (or handheld computer) is a computing device small enough to hold and operate in the hand. Typically, the device has a either flatscreen display with a small numeric keypad or alphanumeric keyboard, or a touchscreen providing a virtual keyboard and buttons (icons) on-screen.
Keyboard. 1  is an input device that enables the user to enter characters (letters, numbers and symbols) into a computer. 2  is a hand held pointing device that is classed as a manual input device. 3  is an input device which is mostly used for playing computer games such as flight simulators.