At what distance do you hold the phone for the test? There HAS to be a set distance! If it is less than 20 feet, it is not a valid test, unless you have an intervening lens to compensate for not being at 20 feet (or 6 meters).
Great videos! Thank u! Only want to add… there is no +3 etc…. It’s 20/30- (meaning -1) 20/40+(meaning +1) or -2/+2 If someone gets 3 wrong or right… it moves To documenting the line above or below. So 20/30-3 is actually 20/40+2
This is correct under the assumption that the chart has 5 letter lines. In the event of a 6 letter line chart the principle is similar; if you get half correct, move to the next line. If a patient read three out of six letters on the 20/20 line then none on 20/15, in that case acuity would be 20/20-3.
@@arturotheburro what if they got one in the 20/15 but 20/20-3…. I wonder if most projectors have odd number of letters. I haven’t paid attention bc it’s so automatic for me now. I have only memorized the old school fzbd4, oflc3, slides
@@ChicagoChicago27 It would be the same notation, you could write 20/20-3/+1. Same as if someone read 3 20/20 and one 20/15 line on a 5 letter chart would be 20/20-2/+1. This is really semantics though haha. In clinic I don’t often denote +/- unless there’s a specific difficulty or something with the vision.
As a nurse who's new to ophthalmology, your videos have helped! They are clear and straight to the point. Please make more 😁
Thanks
Nice vedio All Optometrist & Ophthalmologist Helpful for History taking I from India thank-you so much sir ♥
5:24 "Oh hey, didn't see you there... I was busy blocking out the haters" 😂
"busy mMmMmmnNNn blocking out the haters"
The history portion very well explained
Excellent video Very helpful and informative
Nice video helpful for medical student..Thank you so much your all team..
At what distance do you hold the phone for the test? There HAS to be a set distance! If it is less than 20 feet, it is not a valid test, unless you have an intervening lens to compensate for not being at 20 feet (or 6 meters).
Great videos! Thank u! Only want to add… there is no +3 etc…. It’s 20/30- (meaning -1) 20/40+(meaning +1) or -2/+2
If someone gets 3 wrong or right… it moves
To documenting the line above or below.
So 20/30-3 is actually 20/40+2
This is correct under the assumption that the chart has 5 letter lines. In the event of a 6 letter line chart the principle is similar; if you get half correct, move to the next line. If a patient read three out of six letters on the 20/20 line then none on 20/15, in that case acuity would be 20/20-3.
@@arturotheburro what if they got one in the 20/15 but 20/20-3….
I wonder if most projectors have odd number of letters. I haven’t paid attention bc it’s so automatic for me now. I have only memorized the old school fzbd4, oflc3, slides
@@ChicagoChicago27 It would be the same notation, you could write 20/20-3/+1. Same as if someone read 3 20/20 and one 20/15 line on a 5 letter chart would be 20/20-2/+1. This is really semantics though haha. In clinic I don’t often denote +/- unless there’s a specific difficulty or something with the vision.
Thank you so much Sir 😊
Ir is a good video bug. I I like a video refraction complete.
Very valuable.. For basic
Thank you sir.
Impressive !!
Thanks
Thanks.
She is beautiful spacialy eyes