visually

adverb

1 in appearance: a visually stunning production

2 visually impaired/handicapped unable to see normally: She teaches visually impaired children.

3 if you explain something visually, you let people see it by using pictures or films, or by showing real things: The process is easy to understand when it is demonstrated visually.

vital /'vaItl/ adjective

1 extremely important and necessary for something to succeed or exist: Choosing the right equipment is vital.

(+ to): Such measures are vital to national security. (+ for): Regular exercise is vital for your health. | it is vital that: It is vital that you keep accurate records. | vital importance: The industry is of vital importance to the national economy. | play a vital role: Richardson played a vital role in the team's success.

2 full of energy in a way that is exciting and attractive: The drawings were crude but wonderfully vital. | a strong, vital man

3 (only before noun) necessary in order to keep you alive: the body's vital processes | the vital organs (=heart, brain etc)