Near point of accommodation and amplitude of accommodation with RAF rule

Near point of accommodation:
The point nearest to the eye where a person uses maximum accommodation with the clear image of an object on the retina.
Amplitude of accommodation :
Is the maximum power of the crystalline lens to accommodate.
How to calculate near point of accommodation :
Requirements for the test.
1. Two adjustable chairs.
2. An occluder
3. RAF rule
4. Proper illuminated room
5. A pen
6. A paper for documentation
Procedure :
The cheek rest is softly put on the inferior orbital margin of the patient.
The patient should put his spectacles on of he is already using glasses to carry out the rest.
The standard target to rule out the near point of accommodation is "the top smallest line" of the N chart.
For binocular test, the standard target of the N5 smallest line should be the word "THE" in center.
For monocular right eye the standard target should be the word "EVERY" on the smallest N5 line.
For monocular left eye the standard target should be the word "custom" on the smallest N5 line.
Now push the target towards the patient's eye slowly and gradually 1 to 2 centimeter per second. And ask the patient to stop you when the target get blur and that blur point is break point.
Now ask the patient to blink 2 to 3 times and then again see the target.. If it's blur again then move the target back until its clear again and that point is called recovery point.
Repeat this target 3 times for monucular right and monucular left eye and 3 times for binocular eyes.

[@afzalchakar1872]

You’re so much more than “just” a teacher. You’re my mentor , and I’ll take your lessons with me wherever I go.... keep going on Sir 👌

[@optometrywithkhurram6867]

Always there for my students.. Allah bless you.. 😇

[@iqralaiq26]

Thank you so much for putting in this much effort to teach us. May God bless you 🙂

[@optometrywithkhurram6867]

You are so welcome!

[@kashifkulachi3249]

Always a great teacher for me well explained Sir ji ❤️

[@optometrywithkhurram6867]

Keep watching

[@kashmalazarin3262]

elaborated so well! Thank you

[@optometrywithkhurram6867]

Welcome Kashmala 😇

[@shameenarooj3895]

Very well Explained Sir. Thank you

[@optometrywithkhurram6867]

Welcome 😇

[@ammaraakhaan]

Elaborated so well. It was very helpful 👍

[@optometrywithkhurram6867]

Glad it was helpful!

[@rahulmoderator4897]

Awwww.....it is very easy sir...thank you for making this video sir😇🙏

[@optometrywithkhurram6867]

Most welcome and keep watching us..dear😊

[@chiamakaconfidence1463]

A quick question
Do we subtract the patients add from the AA gotten?

[@khubaibfreestuff5261]

Thanks for sharing sir

[@basitiqbal6197]

Very well explained. Thank you so much Sir 💯👍🏻

[@optometrywithkhurram6867]

Happy to help

[@kpoornima7308]

If patient is using presbyopic glasses should patient use it while performing this test sir?

[@muhammadimad5712]

Thank you sir for such a informative lecture 🌸

[@optometrywithkhurram6867]

Welcome 😇 😇

[@ranjithpremaratne7769]

Very nice exlamation

[@abbaskhan-tb5rc]

Informative Lecture Thank you So Much Sir

[@optometrywithkhurram6867]

Thankyou 😇

[@widiwoelan1943]

Big thanks...now I know how to wearing RAF rules 😃

[@optometrywithkhurram6867]

Pleasure to know this.. 😀

[@abdulmajid9076]

Good initiative brother.
Keep it up and good luck

[@optometrywithkhurram6867]

Thankyou Abdul majid.. 🌹

[@prashantkuril.6698]

This test is done after giving prescription to patient?

[@optometrywithkhurram6867]

Not always...we use this test when our patient complains of near blurr, headache on reading. So we need to get the amplitude of accommodation to rule out the reason that either amplitude of accommodation of our patient is normal or not

[@prashantkuril.6698]

@@optometrywithkhurram6867 ok🙏🙏

[@memoonasaeed4408]

Jaha bhi letters blur hojaein us point ko note krna hta h hmy in cm?

[@shamsaaziz2841]

Explained v well Thank u sir g

[@optometrywithkhurram6867]

Thankyou shamsa. 😇

[@rahimkori3138]

Well explained sir👍❤️

[@optometrywithkhurram6867]

Keep watching

[@aurangzebraees6747]

Very informative thank you sir

[@optometrywithkhurram6867]

Most welcome

[@wasifkhankhattak5096]

Well explained thank you sir 💝

[@optometrywithkhurram6867]

Most welcome

[@memoonasaeed4408]

Agar kisi ka near point of accommodation 11 cm h, vision right 6/6p (autoref -0.50/-0.75*130) , left eye 6/6 (autoref -1.00/-0.75* 80 ) and pt has asthenopic symptoms, never used glasses.
Kindly guide what will be the prescription

[@youniskhan2103]

Thank you so much sir.👍👌

[@optometrywithkhurram6867]

Most welcome

[@numanshah3801]

Well explained 👍👍

[@optometrywithkhurram6867]

Thankyou.. 💐

[@mazarkhan1549]

Well explain Sir

[@optometrywithkhurram6867]

Keep watching

[@devangshukla329]

Thanks sir your way of teaching is gorgeous, Sir please upload video on NPC and NPA documents on prescription

[@optometrywithkhurram6867]

As soon as possible dear
czcams.com/video/skcXI14kgKw/video.html

[@devangshukla329]

@@optometrywithkhurram6867 thanks sir ❣️❣️

[@swedhasriswe8043]

Sir after getting blurd you asked the pt to blink so the target is blurd here .but what it is mean after the blink the word become clear
Whta is the nxt step todo??
Pls reply sir

[@optometrywithkhurram6867]

Actually blinking of eye relaxes the eye and relax accommodation as well, so we must ask the patient to blink after having break in accommodation so he can relax accommodation and this way we can find most accurate reading of NPA. Hope this is clear

[@bagbulseikh7468]

Sir NPA test is measured after blink the eyes which point patient getting clear . Please tell me.

[@NizarNizar-hv1gx]

why it kept 45 degre deppresed

[@optometrywithkhurram6867]

Because we always read at this angle

[@vivekanandavivekananda6566]

hii sir i have 1 doubt pls let me know this is push up and push down method in RAF ruler right.
> clear point and blur point recording is from front side chart and back side chart ?? i am confusing

[@optometrywithkhurram6867]

We move that target towards the patient's eye to gain the the near point of accommodation and near point of convergence .

[@vivekanandavivekananda6566]

thanku sir😍

[@vivekanandavivekananda6566]

@@optometrywithkhurram6867
sir can u make video abut minus lens method to measure amplitude of accomodation. pls

[@optometrywithkhurram6867]

@@vivekanandavivekananda6566 welcome

[@optometrywithkhurram6867]

@@vivekanandavivekananda6566 why not..sure .. very soon.

[@keertikapandey3301]

Please upload a video on how to document the NPC and NPA on our prescription.

[@optometrywithkhurram6867]

Right.. Next video is on How to document the NPC and NPA on prescription.

[@swedhasriswe8043]

Pt age 16
Ou : plano
C/0 headache past three months
In NPC the value is 38 what is the condition. Sir

[@optometrywithkhurram6867]

Good question.. If you are talking about RAF rule values.. Then 38 cm is severely reduced convergence and patient is severely insufficient of convergence. Prescribe pen push ups 100 times a day and monitor convergence every week.

[@swedhasriswe8043]

@@optometrywithkhurram6867 tqsm sir

[@annaphilip805]

kindly show the calcuation of amplitude of accomodation too, because the title of the video says so

[@optometrywithkhurram6867]

Sure the next video is on the calculation of amplitude of accommodation

[@zameerkhan-fy6iz]

So informative

[@optometrywithkhurram6867]

Thank you..keep in touch with us.. 😇

[@hinaprajapati4722]

The amplitude of accommodation will be calculated by measuring the near point of accommodation by RAF ruler..sir isme konse formula ko use krke amplitude of accommodation calculate kre ?plz reaply me

[@optometrywithkhurram6867]

Dear Hina Prajapati...
Can i make a video on this for you??

[@hinaprajapati4722]

@@optometrywithkhurram6867 yes sir..plz

[@optometrywithkhurram6867]

Uploaded you can check the video called "Calculation of Amplitude of accommodation

[@optometrywithkhurram6867]

czcams.com/video/skcXI14kgKw/video.html

[@hinaprajapati4722]

@@optometrywithkhurram6867 thank you sir

[@adi521000]

Thank you sir

[@optometrywithkhurram6867]

Welcome 😇

[@a4_aryan015]

thank you sir🥰😇

[@optometrywithkhurram6867]

Keep watching

[@samch19]

👍

[@optometrywithkhurram6867]

👍

[@rohitbisht5042]

Sir merko head or neck pain hora or computer ma 0.25 or 0.50 number Ara ha maine snellen pura read kiya merko kiya karna chaiya

[@optometrywithkhurram6867]

Apko computer py apna sitting posture maintain krna chahye..hai.
R Sath he computer screen py koi protected screen lgwani chahye ...
R agr screen py ap 20 minute Kam kr rahy hen to approximately 20 seconds k lye 20 feet ke doori py daikhen.

[@rohitbisht5042]

Ok

[@rohitbisht5042]

Or jo computer 0.25 or 0.50 no Ara hq

[@rohitbisht5042]

Or sir doctor na bola ki muscles weak ha or dry eyes bhi

[@Shivash554]

Sir where do u work???

[@sooryasooryak7448]

How to measure amplitude of accommodation in different verticle viewing angle ? Eg:-(20°up) . How to measure the angle?

[@optometrywithkhurram6867]

Sure dear Soorya.. In the very next video 👍👍

[@naimashabbir479]

👌💯

[@optometrywithkhurram6867]

👍👍

[@rohitbisht5042]

Sir jo computer show karta ha 0.25 or 0.50 wo kya

[@rohitbisht5042]

Snellen pura read kiya 3, 4 par ya show kiya

[@optometrywithkhurram6867]

Yh computer error ho skta hai..
Nothing to worry..agr ap Snellen chart Pura read kr rahy hn to no need any glasses.

[@rohitbisht5042]

Sir muscle weak alog hota ha or vidio. Loss alg hota ha

[@optometrywithkhurram6867]

@@rohitbisht5042 ji ..muscles weakness Alag cheez hai ..vision loss Alag chez hai

[@rohitbisht5042]

@@optometrywithkhurram6867 sir muscles weak ma head pain hota

[@sidrasajjad2984]

👍👍

[@optometrywithkhurram6867]

👍

[@krithikalakshmi4587]

Sir ,with the same topic with prismbar plz demonstrate ...kind request

[@optometrywithkhurram6867]

Yes, sure... Dear Krithika.. Very soon 👍😇

[@haseebkhalid2471]

💯👍🏼

[@optometrywithkhurram6867]

👍

[@rohitbisht5042]

Sir mera hua tha unhona bola muscle weak ha but chashma ki jarurat nhi ha

[@rohitbisht5042]

Sir mera computer ma 0.25 or 0.50 Ara ha but maine snellen pura read kiya

[@optometrywithkhurram6867]

Ji..Yeh muscle weakness ko gain krny k lye Hota hy test..

[@optometrywithkhurram6867]

Ji apko glasses ke zarurat nae hai..

[@rohitbisht5042]

Thank you so much sir

[@romilathiumai0372]

sir can you please upload about NRC

[@optometrywithkhurram6867]

You mean normal retinal correspondence ??

[@najibbewass2216]

Nice

[@optometrywithkhurram6867]

Thanks

[@BILALAhmad-jw1qn]

❤️❤️

[@optometrywithkhurram6867]

Keep watching

[@alliswell4743]

👍❤️

[@optometrywithkhurram6867]

👍👍

[@najibbewass2216]

Super

[@optometrywithkhurram6867]

Thanks

[@optometry.]

expected values for NPA , NPC ??

[@optometrywithkhurram6867]

Dear.. NPC and NPA has different values in diffrent age group. I will upload a detailed videos that how can we gain exact NPC and NPA value in a specific age group. Keep in touch with us.

[@simpleboys6676]

👍

[@optometrywithkhurram6867]

👍