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4 Prism Base Out Test
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- čas přidán 25. 05. 2019
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The Four Prism Dioptre Reflex Test (also known as the 4 PRT, or 4 Prism Dioptre Base-out Test), is an objective, non-dissociative test used to prove the alignment of both eyes (i.e. the presence of binocular single vision) by assessing motor fusion.Through the use of a 4 dioptre base out prism, diplopia is induced which is the driving force for the eyes to change fixation and therefore re-gain bifoveal fixation meaning, they overcome that amount of power.
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The light refracts more toward the base. The image is displaced toward the apex. Other than that, great explanation of the 4 BO test.
Eye moves towards base??
@@AbhishekSingh-lu8twyes
Thank you for sharing this important content ☺️❤️
Now i can use 4 prism. Happy to watch this.
Thank you
Thankyou for the upload. Especially the recording part was so helpful
Thank you 😊
@optometry academy, there is a small correction needed at 1:29 time lapse, image displace to APEX of prism, not to BASE, whereas Ray optics do the opposite.
Yes. Ma'am, I already accepted this mistake. It is mentioned in the comment section by me.😊
Excellent !!
Explained so beautifully and clearly thank you❤️
Thank you 😊
Plz upload video about prism dispensing.........plz as soon as possible......this topic is tooo much difficult for me to understand.....plz help
so beautifully explained thank you .
Thank you 😊
Very useful , good work
Thank you
Great .... Thank u so much
interesting
Loved to watch your educational videos. :)
Please keep watching my videos. Thank you
Thank you. Very clearly explained
Thank you very much about your videos. Can you please make a video about how to mesure strabismus angle with different methods ? Thank you very much in advance
Well explained,thank you
Well
VERY NICE
Thank you its so simplified !
Thankyou so much this was so helpful 💘
😊
Big thanks to you, it was a very helpful explanation…
Thank you 😊
Good explanation ..Aklesh
Thank you :)
Image displacement is towards the apex of the prism not towards the base of prism. Make a correction please!
Other than that, video is very informative. ✅
Very well explained 👍👍
Thank you 😊
Awesome explanation sir... ❤☺
Thank you 😊
thanks bro
it was help full
Thank you 😊
Clearly explained :)
Thank you
Image is displaced towards the apex.
Yes, it is my mistake in this video
Thank U so much sir
Nice video
Thank you so much :)
Supperbly explain.
Thank you 😊
Could have plz explained the use of this test for microtropia also. Rest for suppression scotoma its a good explanation
Diagnosis of a microtropia was determined by the following criteria:
(1) Cover test revealing only a latent deviation or no deviation, in patients with microtropia with identity, or a small manifest deviation in microtropes without identity, measuring
wonderful love this
Thank you :)
thank you so much
😊
Nice.
:)
Can we do this test with 6 prism also and with near target also?
Yes
Where I buy this Prisim glass in Bhubaneswar odisha
Prism displaces image towards apex or base....? Pls clarify this
Prism displaces image towards apex. Ray of light bends toward base
Thank you for your comment 😊
👌
Sir video ko hindi m banaado please is video ko and brockstring ko use kese karte hai use bhi Hindi m banaao please
👌👌👌👌
😊
Sir isko distance or near dono m karte hai?
Distance me