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
Name-letter effect once according to estimated letter frequency. Subjects indeed significantly overestimated the frequency of letters in their names, although there was no significant positive correlation between the overestimation of frequency and the name-letter effect. The researchers also asked subjects to rate how much they liked their own name. Subjects who liked their name had a stronger name-letter effect than those who did not like their name, but they did not overestimate the frequency of own-name letters more than subjects who did not like their names. Hoorens and Nuttin concluded that there is no support for the subjective frequency hypothesis. Evaluative conditioning