The above retinoscopy video is good for beginners. First the user has to develop orientation to focus light on eye. First check whether ur using plano or concave mirror, because the shadow movement in concave mirror is opposite to plano mirror. The glass power can be increased by 0.50d. till get reversal of movement. The speed of shadow movement, brightness of shadow gives an idea of refractive power. Slower the movement and dull shadow indicate high refractive power. One can do streak retinoscopy with spherical only in both axis by rotating th knob. Once u reach neutralization in one meridian, do retinoscopy in other meridian. The other easy method of streak retinoscopy is doing refraction with high power glass than the actual power and then reduce power to get reversal of movement. In oblique astigmatism, rotate the knob till the streak and shadow come parallel.
@christymsany2859 Жыл бұрын
Simple and Very useful thank you so much❤️
@optometry-with-samir Жыл бұрын
You are right. Stay with us and share with your friends. Thank you, Samir Sutradhar.
@kamalpatidar977311 ай бұрын
Aree kya simple tarike se samjhaya h sir aapne mje aagye ek dum sikh gye hum to
@optometry-with-samir11 ай бұрын
Stay with us and share with your friends. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.
@situmapw8219 Жыл бұрын
Beautiful and simple. Thank you for sharing
@optometry-with-samir Жыл бұрын
Stay with us and share with your friends. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.
@areebahahasan73572 жыл бұрын
Sir, during final spectacle power we should algebric summation of spherical power from working distance, in this case +1.5-2.0, isn’t it.Please clear it.
@optometry-with-samir2 жыл бұрын
I will request watch this video again carefully. We have already given working distance power(+1.50D). Then we neutralized one meridian with Spherical lens and other with cylinder lens. And in final prescription we didn't count the working distance power. So no need to subtract working distance from spherical power.... Don't forget to try Android App "Optometry Notes and MCQs". Thank you, Samir Sutradhar.
@maharali-pe8tj2 жыл бұрын
Sir in this video our retinoscope streat for correction of cylinder is 90 degree .. We put cylinder at 180 axis or at 90 axis please guide me. and in final prescriptiom you write -2 00/-1.00*90 while our streat is 90 i think here axis should be 180 in prescription
@optometry-with-samir2 жыл бұрын
First of all, You are confusing with retinoscopic cross with retinoscopic neutralization. During retinoscopy only remember about axis don't try to think where the power is... When the reflex becomes parallel with streak we call it axis and to neutralize this axis remember you have to place the axis of trial lens where streak and relfex is parallel, power is already distributed 90 apart from the axis in the trial lens. You don't need to change the axis by 90 again. If still you are confused go through the optics of cylinder lens. Or start doing retinoscopy with this video (with these 3 simple steps) by the time you will understand the mechanism. Thank you, Samir Sutradhar
@deepthink65002 жыл бұрын
When the retinoscope streak it vertically so we neutralized the horizontal meridian. Exp when streak of retino it 90 meridian and then we swipe retino right and left direction mean horizontal movements so we mention power in horizontal meridian which we neutralized
@krishnak1840 Жыл бұрын
Hi Samir, I’m having a small doubt in the the step 2. How we know the spherical power? You want me to take horizontal meridian always or ??
@optometry-with-samir Жыл бұрын
@@krishnak1840 Watch updated video with cross optical cross here: kzbin.info/www/bejne/bGO1paKhbb6Whq8
@optometry-with-samir Жыл бұрын
@@deepthink6500 Watch updated video here with optical cross to understand more easily: kzbin.info/www/bejne/bGO1paKhbb6Whq8
@darkworld13582 жыл бұрын
If 45 degree meridian has problem then what process should I do , how can I find the problem metic meridian
@optometry-with-samir2 жыл бұрын
Please watch the video few more times... If one meridian is 45 other meridian will be 135. You can neutralize one meridian with Spherical trial lens(Suppose 135) and other meridian with cylinder trial lens (45). Procedure is same but meridian will change... Thank you, Samir Sutradhar.
@PoojaKumari-ox7wh Жыл бұрын
Thanks for nice definition in retinoscope sir
@optometry-with-samir Жыл бұрын
▪️Stay with us and share with your friends. ▪️Don't forget to download our App "Optometry Notes and MCQs ". It's available in Play Store. Thank you, Samir Sutradhar.
@jasonortiz48998 ай бұрын
I have a question. In placing the lens to get the cylinder, what lens is used, is it the sphere trial lens or the cylinder trial lens itself? Thank you
@optometry-with-samir8 ай бұрын
In this Technique, we use a cylinder trial lens to identify cylinder power. Watch the updated video of this technique: kzbin.info/www/bejne/bGO1paKhbb6Whq8si=abClt8Pvyyj2tLtm
@DrSohail_ahmad Жыл бұрын
Very easy and Informative ❤❤
@optometry-with-samir Жыл бұрын
▪️Stay with us and share with your friends. ▪️Don't forget to download our App "Optometry Notes and MCQs ". It's available in Play Store. Thank you, Samir Sutradhar.
@deepikanathan46462 жыл бұрын
on neutralizing scissor reflex whether we wanna neutralize with or against movement in a Meridian
@optometry-with-samir2 жыл бұрын
In scissor reflex accuracy will be less keep it in mind. To increase the accuracy you can use pilocarpine to constrict the pupil. Better to give cylinder in Minus (against movement) form as lenses are made up with minus cylinder. Thank you, Samir Sutradhar.
Awesome described as in Elkington book just in four minutes four pages covered here that too with good comprehensive simple presentation and animation awesome I really liked it though we never used this technique or trial frames or cylinders we always used spheres in each meridian and then used to correct it for working and cycloplegic correction you corrected for working distance but then you didn't tell to correct it for cycloplegic drug correction also here you neutralised the movement with the sphere in one axis and with the cylinder at ninety degree later on keeping sphere intact, it's a normal uncomplicated example ! Sphere can be neutralised in any one meridian horizontal or vertical first then perpendicular meridian is used to it to neautralise that with the cylinder but you didn't correct here for a drug used for cycloplegia but anyways a helpful video for better clear understanding ! I hate my post graduate college such a chhapri cheap faalatu college didn't teach us things fast and properly why because they themselves don't know many things plus their ego arrogance biased attitude is at highest level ! Everytime I read something i remember my asshole falatu cheap pg college how pathetic it was !
@optometry-with-samirАй бұрын
@@PiyaChoudhari There are 3 techniques of Retinoscopy. I have prepared separate videos for each. You can go to our channel and check Retinoscopy Playlist. Your feedback really motivated me, Thank you...
@thilakraj42412 жыл бұрын
Wroking distance power should add in one eye or both the eyes ?
@optometry-with-samir2 жыл бұрын
Watch the video again... We given working distance at first and didn't calculate in final Refraction. In this method, you need to put working distance power at the beginning (Separate trial lens) and forget throughout the process.
@thilakraj42412 жыл бұрын
Yaa...but my question is wheater we shld add +1.50 in both the eyes are it shld add on the performing eye only ?
@md.hanjalaashrafi9480 Жыл бұрын
Make a video on binocular balancing
@optometry-with-samir Жыл бұрын
Sure, I will try in upcoming videos. ▪️Stay with us and share with your friends. ▪️Don't forget to download our App "Optometry Notes and MCQs ". It's available in Play Store. Thank you, Samir Sutradhar.
@doubletroubletriple3 жыл бұрын
Excellent....
@optometry-with-samir3 жыл бұрын
Stay with us and share with your friends. Thank you, Team Smart Optometry.
@kanishkmalisetty825810 ай бұрын
Beautiful video
@optometry-with-samir10 ай бұрын
Check Updated version of this Video: kzbin.info/www/bejne/bGO1paKhbb6Whq8 Stay with us and share with your friends. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.
@UsmanAli-q7i9p10 ай бұрын
In this technique you are placing cyl at 90 and also in final prescription at 90 but in 2 cylinder technique while neutralizing 90 meridian you are writing power at 180 .why plz explain
@optometry-with-samir10 ай бұрын
You can also do Optical Cross like "2 cylinder method" then convert into Sphero-Cylinder format. The result will be same. I will suggest you to watch below 2 videos. These video will clear your doubts. If you still have any doubts then you can reply back.. ✓Watch extended version of this Video here: kzbin.info/www/bejne/bGO1paKhbb6Whq8si=HdeD4Hr60gbJ3J8A ✓Watch optical cross video here: kzbin.info/www/bejne/inOyg5iOjZV9ebcsi=MnyV2lt3hbjeAr7X
@iswaryalakshmi5528 Жыл бұрын
Sir one doubt why can't we neutralize the vertical meridian with cyl trial lens
@iswaryalakshmi5528 Жыл бұрын
If we do in that way will we get the same power?
@optometry-with-samir Жыл бұрын
You can neutralize any meridian with cyl trial lens.. In this technique, if you choose horizontal as Spherical meridian then you can neutralize horizontal meridian with a Spherical Trial lens and vertical meridian with a cyl trial lens. Please watch this video few times then practice with Retinoscopy Simulator online.... 📌Watch complete playlist about retinoscopy: kzbin.info/aero/PLslkRTVi8_xfgkm8qmPLa0xRex7-3_C31
@jankichakrwarti7398 Жыл бұрын
nice sir
@optometry-with-samir Жыл бұрын
▪️Stay with us and share with your friends. ▪️Don't forget to download our App "Optometry Notes and MCQs ". It's available in Play Store. Thank you, Samir Sutradhar.
@besoftcool2 жыл бұрын
Retinoscope & opthomoloscope are same ? Or different instruments?
@optometry-with-samir2 жыл бұрын
They are different instruments. Ophthalmoscope is used to examine interior of the eyes where Retinoscope is used to identify Refractive Error of the eye.
@wisdomnthala6025 Жыл бұрын
Helpful video
@optometry-with-samir Жыл бұрын
Stay with us and share with your friends. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.
@anshumansahabji89103 жыл бұрын
Excellent
@optometry-with-samir3 жыл бұрын
Stay with us and share with your friends. Thank you, Team Smart Optometry.
@jagratiyadav48602 жыл бұрын
Do you give classes also
@optometry-with-samir2 жыл бұрын
We have plan to launch a App for online classes, MCQ and notes... Drop your email here. We will inform you when we will launch the app. Thank you, Samir Sutradhar.
@meenasalve62653 жыл бұрын
Thanks for retino
@optometry-with-samir3 жыл бұрын
Stay with us and share with your friends. Thank you, Team Smart Optometry.
@emmanuelkiplangat9226 Жыл бұрын
Simple, , nice video... But ......Axis 90 not @90
@optometry-with-samir Жыл бұрын
Yeah you are right.
@sumansasmal74642 жыл бұрын
Helpful video
@optometry-with-samir2 жыл бұрын
▪️Stay with us and share with your friends. ▪️Don't forget to download our App "Optometry Notes and MCQs ". It's available in Play Store. Thank you, Samir Sutradhar.
@sumansasmal74642 жыл бұрын
@@optometry-with-samir sure I will download it
@rithuamotivationspeech11 ай бұрын
Yes tq so much.
@optometry-with-samir11 ай бұрын
Stay with us and share with your friends. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.
@aswathyachu17702 жыл бұрын
Thanks❤
@optometry-with-samir2 жыл бұрын
Stay with us and share with your friends. Thank you, Team Smart Optometry.
@muskan7940 Жыл бұрын
But against movement nutralize by plus lens
@optometry-with-samir Жыл бұрын
"Against movement" is neutralize by "with movement" and minus lens has "with movement". So against movement is neutralize with minus lens.
@varsha97413 жыл бұрын
In high myopia what is retinoscopy reflex...
@optometry-with-samir3 жыл бұрын
Dull, wider, slow and against movement. Thank you, Team Smart Optometry.
@nataliarychtarczyk28893 жыл бұрын
@@unknowndomain6357 Depends how far away you are from the refractive error. If you are extremely far off, say 5D or more, it will be Dull, wide and slow. As you add power in the appropriate direction, it should brighten up and the reflex will narrow. This can help you appreciate the axis (and cyl if that is required). Then you can continue adding power until the reflex "widens" and becomes bright without movement/neutral.
@vishnuthayas11942 жыл бұрын
@@unknowndomain6357 you have to see both the thickness and brightness of the reflex. Wide and dull indicates higher power. Narrow and bright indicate small power
@nataliarychtarczyk2889 Жыл бұрын
@@unknowndomain6357 Hard to explain but it sort of goes from not really seeing much of a reflex (dull), to seeing a more distinct beam (approaching the appropriate power), until it is finally neutralized and theoretically the beam should become a nice uniform glow... I always see it as a beam collapsing in on itself until I see the orange backdrop filling the pupil? Retinoscopy has become more muscle memory than really sweating over the beam I'm observing unless I think I'm dealing with an accommodative spasm (variable reflex) and/or non verbal patient where I need to rely almost solely upon my Ret.
@nwokenneugochukwu4377 Жыл бұрын
Please how and where can I download retinoscopy simulator?
@optometry-with-samir Жыл бұрын
Check this Video: kzbin.info/www/bejne/oZrPhqKNbp1oeq8
@willa4359 ай бұрын
thank you
@optometry-with-samir9 ай бұрын
Stay with us and share with your friends. Don't forget to download our app "Optometry Notes & MCQs". It's available in Google Play Store. Thank You, Samir Sutradhar.
@Marie_101015 ай бұрын
Thanks
@rajratnapatil6332 жыл бұрын
सर येही विडिओ हिंदी मी बनाये प्लीज 🙏🏻🙏🏻🙏🏻🙏🏻
@odburaale38353 жыл бұрын
Excellent thanks
@optometry-with-samir3 жыл бұрын
Stay with us and share with your friends. Thank you, Team Smart Optometry.
@meenasalve62652 жыл бұрын
Plzzz make video on peripherals and central glows.while doing i get very confused wether i should look at orange or light red glow coming frm corners ..Or central glow.. Very confusing while doing practical 😣😣😣😢😢🤧
@optometry-with-samir2 жыл бұрын
Thank you for your suggestion. You should follow only central reflex. Because we see through our optical zone which is 3-5mm. In some condition like Keratococus it's advised to do refraction after using miotics. Thank you, Samir Sutradhar.
@chitlurnvishwanath32117 ай бұрын
When pupil is dilated more, look for central one only and not the peripheral.
@shahladarshanravaldz590511 ай бұрын
Thnk uhh🙌
@optometry-with-samir11 ай бұрын
Stay with us for more videos
@umrahd37432 жыл бұрын
Simple and easy
@optometry-with-samir2 жыл бұрын
Stay with us and share with your friends. Thank you, Team Smart Optometry.
@jyotijoshi32733 жыл бұрын
Esmai optical cross kaise bnayenge ??
@ايو-ث5ج2 жыл бұрын
In the 48 s when we put rhe WD....this eye is nytrolysition🤔
@optometry-with-samir2 жыл бұрын
In this method, If after placing working distance power reflex is neutralized then Patient is Emmetropic for Distance. Thank you, Samir Sutradhar.
@ajimshaabdulkalam4332 жыл бұрын
Jackson cross cylinder.. please
@optometry-with-samir2 жыл бұрын
Thank you for your suggestion. I will try my best to prepare a video on JCC. Thank You, Samir Sutradhar.
@leenoisiow5178 Жыл бұрын
The power of the lens should be -2.00/-1.00×90..
@optometry-with-samir Жыл бұрын
Yeah... Check updated version of this video with more details. Link: kzbin.info/www/bejne/bGO1paKhbb6Whq8