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Glasses and Contact Lens Prescription Explained | Eyes Explained

354,592 views

Eyes Explained

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

99%
  • 6:44 / 6:48

Speech Rate:

  • 192 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

exactly

/iɡˈzak(t)lē/

adverb

used to emphasize accuracy of figure or description.

require

/rəˈkwī(ə)r/

verb

To demand that someone does something.

achieve

/əˈCHēv/

verb

successfully bring about or reach desired objective or result.

numbers

/ˈnəmbər/

noun other verb

arithmetical value expressed by word, symbol, or figure. Symbols such as 1, 2, 56, 793. To assign a sequence within a group, series, set.

typical

/ˈtipik(ə)l/

adjective

having distinctive qualities of particular type of person or thing.

positive

/ˈpäzədiv/

adjective noun

Being sure about something; knowing the truth. positive quality.

required

/rəˈkwī(ə)rd/

adjective verb

officially compulsory, or otherwise considered essential. To demand that someone does something.

dioptre

/dīˈäptər/

noun

.

determines

/dəˈtərmən/

verb

To control exactly how something will be or act.

whether

/ˈ(h)weT͟Hər/

conjunction

expressing doubt or choice between alternatives.

properly

/ˈpräpərlē/

adverb

correctly or satisfactorily.

neither

/ˈnēT͟Hər/

adjective adverb conjunction determiner pronoun

Not one or the other not either none of two things. Similarly not, also not. Not in either case. Not one or the other. Not either one.

focussed

/ˈfōkəs/

verb

become able to see clearly.

focusing

/ˈfōkəs/

verb

To keep your attention, concentration on one thing.

abbreviation

/əˌbrēvēˈāSH(ə)n/

noun

Shortened form of a word or phrase.

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