This procedure involves the use of a shiny steel ball, typically gold or silver in color, which is attached to a stick. The examiner holds the stick along the midline, at a certain distance from the patient. This technique derives its name from a small bell that used to hang on a string and served … Read more
MEM is a dynamic retinoscopy technique involves the use of a retinoscope with a series of cards attached to its head using magnets, such as the Welch Allyn retinoscope. These cards have a central aperture that helps the examiner align their viewing axis with the subject’s visual axis. The cards contain targets, such as printed … Read more
Static Retinoscopy In static retinoscopy, the patient is instructed to focus on a distant target positioned 6 meters away, which is considered to be at optical infinity. The reason for using 6 meters as the standard distance for retinoscopy is that when light rays come from a source situated 6 meters away, they are typically … Read more