Eye chart number). The denominator indicates the distance in feet at which a person with normal vision could stand to correctly identify the same symbols identified by the person tested. For example, a visual acuity of 20/20 is considered normal. Numerous types of eye charts exist and are used in various situations. For example, the Snellen chart is designed for use at 6 meters or 20 feet, and is thus appropriate for testing distance vision. There is often also a need to test a subject's vision at near or occupational tasks (such as reading or computer use). For these situations, a Rosenbaum
The Name of the Doctor Award for Best Dramatic Presentation (Short Form), along with The Day of the Doctor, An Adventure in Space and Time and The Five(ish) Doctors Reboot. As well as being released on DVD and Blu-ray in a box set alongside the rest of the "Series 7" episodes on 28 October 2013, the episode was announced as being a part of a limited edition "50th Anniversary Collection" on 23 July 2014. This special DVD and Blu-ray box set was released on 8 September 2014. The Name of the Doctor "The Name of the Doctor" is the thirteenth and final episode of the