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Distance Feet 70 60 50 40 30 20 15 10 7 4 Letter Ht Mm 31 27 22 18 13 9 7 4 3 2 Letter Ht Pt 88 76 63 50 38 25 19 13 9 Visual Acuity Testing Your Vision And Coming Up With A Ratio Like 20 10 Or 20 40 Measures Your Visual Acuity A Specialized Eye Chart .

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Any Line Below That Would Be 20 15 Or Below And Indicates That You Have Exceptional Visual Acuity Use The Table Below For Conversion Between Them The Goal Of Glasses Or Contacts Is To Bring A Person S Vision To 20 20 If You Can Read The Fourth Line From The Bottom Of Most Charts You Vision Is 20 20 If You Have 20 20 .

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If You Have 20 20 Vision This Means That You Are Able To Read Letters From 20 Feet Away That Most Other People Can Read From That Distance As Well What Do The Results Mean That Depends On The Age Of The Person Being Tested For Example 20 20 Represents 1 0 Minute Of Arch At The Retina Any Line Below That Would .

When You Stand 20 Feet Away And Be Able To Read Only The Line 1 Your Vision Is 20 200 Here You 039 Ll Find A Free Downloadable Vision Chart With Instructions If You Divide The 70 20 You Get 3 5 Which Subtends The Minutes Of Arc Of The Object Of Regard At The Retina Visual Acuity Testing Your Vision And Coming Up With .

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When You Stand 20 Feet Away And Be Able To Read Only The Line 1 Your Vision Is 20 200 In Some Cases People With Very Bad Vision Can Only Have Their Vision Corrected To 20 70 Meaning They Can See Objects From 20 Feet Away That Others Can See At 70 Feet A Specialized Eye Chart Can Also Give You More .

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For Example 20 20 Represents 1 0 Minute Of Arch At The Retina A Specialized Eye Chart Can Also Give You More Precise Results Between 20 100 And 20 200 Each Eye Is Tested Separately As Your Eyes Are Designed To Compensate For Each Other And Would Not Give An Accurate Reading Visual Acuity Between 20 200 And 20 400 Is Classified As Severe Vision Loss .

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This Means That If You Are Able To Read The Bottom Line You Are Probably A Good Guesser Visual Acuity Between 20 200 And 20 400 Is Classified As Severe Vision Loss And Anything Below 20 400 Is Considered Profound Vision Loss It Is Generally Felt That The Maximum Visual Acuity Of The Eye Is Around 20 15 Or 20 16 For Example 20 20 Represents .

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The Letters Are Replaced With Symbols Or Pictures Such As An Apple A Square Or A Circle If You Can Read The Fourth Line From The Bottom Of Most Charts You Vision Is 20 20 Visual Acuity Values Are Represented In Decimal Fraction In Feet Or Meters And Log Mar A Person With 20 70 Vision Can Read Only Down To The .

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In Some Cases People With Very Bad Vision Can Only Have Their Vision Corrected To 20 70 Meaning They Can See Objects From 20 Feet Away That Others Can See At 70 Feet Visual Acuity Testing Your Vision And Coming Up With A Ratio Like 20 10 Or 20 40 Measures Your Visual Acuity The Letters Are Replaced With Symbols Or Pictures Such .

Use The Table Below For Conversion Between Them Distance Feet 70 60 50 40 30 20 15 10 7 4 Letter Ht Mm 31 27 22 18 13 9 7 4 3 2 Letter Ht Pt 88 76 63 50 38 25 19 13 9 In Some Cases People With Very Bad Vision Can Only Have Their Vision Corrected To .

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At 3 5 Minutes Of Arc The 20 70 Means That The Letter Size Is 3 5 X Time Larger Than The 20 Foot Letter In Legal Blindness Is Defined As 20 200 In The United States All About Vision Reports So People With 20 70 Vision Are Not Considered Legally Blind 2 Each Eye Is Tested Separately As Your Eyes Are Designed To Compensate .

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Distance Feet 70 60 50 40 30 20 15 10 7 4 Letter Ht Mm 31 27 22 18 13 9 7 4 3 2 Letter Ht Pt 88 76 63 50 38 25 19 13 9 Here You 039 Ll Find A Free Downloadable Vision Chart With Instructions In Some Cases People With Very Bad Vision Can Only Have Their Vision .

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The Line 1 20 200 Means If You Have The Normal 20 20 Vision Then You Can See The Big E On Line 1 From 200 Feet Away Visual Acuity Testing Your Vision And Coming Up With A Ratio Like 20 10 Or 20 40 Measures Your Visual Acuity If You Have 20 15 Vision You Can See A Line In The Eye Chart At .

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Legal Blindness Is Defined As 20 200 In The United States All About Vision Reports So People With 20 70 Vision Are Not Considered Legally Blind 2 Any Line Below That Would Be 20 15 Or Below And Indicates That You Have Exceptional Visual Acuity It Is Generally Felt That The Maximum Visual Acuity Of The Eye Is Around 20 15 Or 20 16 What .

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This Vision Test Can Only Be Considered A Screening Test It Is Generally Felt That The Maximum Visual Acuity Of The Eye Is Around 20 15 Or 20 16 If You Can Read The Fourth Line From The Bottom Of Most Charts You Vision Is 20 20 Visual Acuity Values Are Represented In Decimal Fraction In Feet Or Meters And Log Mar Mckinney .

A Variety Of Factors Such As Lighting Glare Monitor Quality May Have An Effect On The Results Of This Test Mckinney Says That Only About 35 Of All Adults Have 20 20 Vision Without Glasses Contact Lenses Or Eye Surgery If You Can Read The Fourth Line From The Bottom Of Most Charts You Vision Is 20 20 If You Have 20 20 .