4 Prism Base Out Test

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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.
#optometryacademy #4prismbaseouttest #4BO #akleshkumar #optometry #optometrist

[@crocketmeow]

The light refracts more toward the base. The image is displaced toward the apex. Other than that, great explanation of the 4 BO test.

[@AbhishekSingh-lu8tw]

Eye moves towards base??

[@Asadkhan-pf4hy]

@@AbhishekSingh-lu8twyes

[@ambalikaghosh2251]

Thank you for sharing this important content ☺️❤️

[@sunandasanyal405]

@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.

[@OptometryAcademy]

Yes. Ma'am, I already accepted this mistake. It is mentioned in the comment section by me.😊

[@anjanikumari4155]

Plz upload video about prism dispensing.........plz as soon as possible......this topic is tooo much difficult for me to understand.....plz help

[@walidyaman7549]

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

[@amaregetnet4753]

Thank you its so simplified !

[@sindhujaaful]

Thank you. Very clearly explained

[@jayangwangdue2879]

Thankyou for the upload. Especially the recording part was so helpful

[@OptometryAcademy]

Thank you 😊

[@nobertodhiambo6895]

Well explained,thank you

[@hinditoontv4319]

Loved to watch your educational videos. :)

[@OptometryAcademy]

Please keep watching my videos. Thank you

[@sayantanipurkayastha7276]

Explained so beautifully and clearly thank you❤️

[@OptometryAcademy]

Thank you 😊

[@MulualemMekie]

interesting

[@atherhayat78]

Great .... Thank u so much

[@optomak2356]

Now i can use 4 prism. Happy to watch this.

[@OptometryAcademy]

Thank you

[@ManojKumar-fx8bd]

Excellent !!

[@NMBPA]

Well

[@Maryam_Ahsan]

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. ✅

[@bigyanbhusal6051]

so beautifully explained thank you .

[@OptometryAcademy]

Thank you 😊

[@subhadeep55]

Could have plz explained the use of this test for microtropia also. Rest for suppression scotoma its a good explanation

[@OptometryAcademy]

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

[@shahdabsaani1136]

Supperbly explain.

[@OptometryAcademy]

Thank you 😊

[@athiras8712]

Very useful , good work

[@OptometryAcademy]

Thank you

[@tariqal-anazi7149]

Big thanks to you, it was a very helpful explanation…

[@OptometryAcademy]

Thank you 😊

[@MauricioKarren]

VERY NICE

[@susilamimi7624]

Thankyou so much this was so helpful 💘

[@OptometryAcademy]

😊

[@chandankumar-og1rw]

Good explanation ..Aklesh

[@OptometryAcademy]

Thank you :)

[@PoojaSharma-yg5qg]

👌

[@optometry.]

wonderful love this

[@OptometryAcademy]

Thank you :)

[@shabeeraramshad5706]

Thank U so much sir

[@sunandamaity9657]

Awesome explanation sir... ❤☺

[@OptometryAcademy]

Thank you 😊

[@lienkecalitz2045]

Image is displaced towards the apex.

[@OptometryAcademy]

Yes, it is my mistake in this video

[@PoojaSharma-yg5qg]

Clearly explained :)

[@OptometryAcademy]

Thank you

[@kibrommekonen7972]

thanks bro
it was help full

[@OptometryAcademy]

Thank you 😊

[@reenalohana1669]

Very well explained 👍👍

[@OptometryAcademy]

Thank you 😊

[@praveenaracharla5014]

Prism displaces image towards apex or base....? Pls clarify this

[@OptometryAcademy]

Prism displaces image towards apex. Ray of light bends toward base
Thank you for your comment 😊

[@tusharsingh9851]

Nice video

[@OptometryAcademy]

Thank you so much :)

[@muhammadabduljafar8170]

thank you so much

[@OptometryAcademy]

😊

[@strugglingdude10]

Where I buy this Prisim glass in Bhubaneswar odisha

[@harshil4759]

Sir video ko hindi m banaado please is video ko and brockstring ko use kese karte hai use bhi Hindi m banaao please

[@RameshKumar-cw1mm]

Nice.

[@OptometryAcademy]

:)

[@Natureconnection43]

👌👌👌👌

[@OptometryAcademy]

😊

[@sidoptom]

Can we do this test with 6 prism also and with near target also?

[@OptometryAcademy]

Yes

[@richakumari4339]

Sir isko distance or near dono m karte hai?

[@OptometryAcademy]

Distance me