Eye chart chart or Jaeger chart can be used. While the Snellen chart remains the default, some authors have argued that the logMAR chart is superior. The logMAR chart presents the same number of symbols on each line, uses a typeface with letters that are equally legible at various sizes, and by varying the symbol size logarithmically, it is easier to use at nonstandard distances. As a consequence of these improvements, the logMAR chart has been proposed as a more reliable tool for measuring visual acuity. However, the logMAR chart has not yet been widely adopted. It can be difficult to measure
The Name of the Doctor their friend, time-travelling alien the Doctor (Matt Smith), to come the planet Trenzalore, the site of the Doctor's future grave. The Intelligence attempts to force the Doctor to open a door leading to his time stream, which the Intelligence intends to interfere with to undo all of his victories. "She Said, He Said" is a mini-episode that acts as a prelude to "The Name of the Doctor", in which the Doctor and Clara each have a monologue about how little they know about each other and that they discovered each other's secret at Trenzalore. It was released on on BBC