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What does 20 40 mean?
It means that when you look at something 20 feet away, you see it with the clarity that someone with good sight would see 40 feet away.It means you need glasses.
Will your daughter who has been diagnosed with 2040 vision require glasses?
Having 20/40 vision means your daughter can see at 20 feet what a person with normal vision can see at 40 feet. Whether she needs glasses depends on her symptoms and how her vision impacts her daily life. It's best to consult with an eye care professional for a proper assessment and recommendation.
Should my 13 Year old son with 60-20 have glasses?
If you mean 20/60, then i'd say yes. Anyone with worse than 20/40 or 20/50 should have glasses i think.
How do you round 40 to 20 to the nearest percent?
40 to 20 = 2 and that is 200%: no need for rounding.
How many glasses of water is 40 ounces?
40 ounces is equal to 5 cups, so you would need 5 glasses to hold 40 ounces of water.
If you wear glasses can you go into combat?
You can't go into combat if you wear glasses or contacts. You need to have 20/20 vision, and glasses and contacts, if lost or fallen and broken, would just hinder you in combat. You would need to have corrective laser eye surgery if you were to go into combat.
In a eye chart how far down do you get till you need glasses?
20 feet
Can you still get prescribed glasses with 20 20 vision?
If you have 20/20 vision, you typically do not need prescription glasses for vision correction. However, glasses can be prescribed for other reasons, such as reducing eye strain from prolonged screen use or protecting your eyes from harmful UV rays. It's best to consult with an eye care professional for personalized advice.
How many students wear glasses in a class of 20 students where 40 percent are boys and 25 percent of the boys and 50 percent of the girls wear glasses?
There are 8 boys and 12 girls and 8 students with glasses.
Does your 5 year old need glasses if she has a mild astigmatism in both eyes and 20- 40 vision?
Yes you five year old should, because if he/she doesn't, his/her eyes will not be healthy when they grow up.
How much water does a human need daily?
a humanm need 18 -20 glasses of water per day.
Do you need 20 20 vision to be a pilot?
Civilian Pilot: It needs to be Correctable to 20-20 to be a civilian pilot. So you can wear glasses and fly. Military: You need to have 20-20 vision uncorrected to be a pilotso you would have to get laser eye surgery to be a military pilot, however other military employments in an airborn craft maynot need glasses. Such as a navigator. Answer two: It depends on your country of origin mostly. Here in Canada you need: Civilian: 20/30 corrected/uncorrected. Military: 20/20 corrected. Since last year, glasses are now allowed. Laser eye is still not and according to my local recruiter, probably never will be.
