Retinoscopy Plus Cylinder Full Tutorial with Phoropter
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- čas přidán 21. 07. 2024
- Full Retinoscopy Tutorial in Plus Cylinder. Dr. David Guyton. Source: AAO
Table of Contents:
1:40 Introduction
2:22 Instrument Basics
5:21 Model Schematic Eye Retinoscopy
6:16 Retinoscopy Technique
8:13 Retinoscopy Basics Explained
14:18 Retinoscopy Example (Sphere)
15:54 Astigmatism Retinoscopy
18:53 Cylinder Axis Determination Phenomena
20:40 Refining Cylinder
24:00 Converting Measurements to Lens Power
25:20 Real Patient Example
30:36 Loose Lens Retinoscopy
33:28 Scissoring and other Retinoscopy Problems
37:20 Conclusion
Thank you Dr Guyton n team
Of course, you can use your own Test Lenses to accurately measure your own refractive state, to 0.25 diopters.
This works accurately in engineering-ecience.
Thanks for your review.
Retinaoscopy guru.....my hero. Could watch this video daily..love it!
Dear Dr. Guyton,
Very interesting - thank you!
I had never seen this detail before.
I measure a positive state for my normal eyes, by using a Snellen and a plus lens.
At 20/20, clear vision.
Then I use a plus lens, until I achive "just blur", on the 20/20 line.
My refractive state is therefore, +0.5 Diopters, spherical.
This assures me that my 20/20 is very solid.
following this channel very closely, exactly what i needed, THANK YOU SO MUCH!!
Getting rid of accommodation in this measurement, is extremely difficult.
I always use test lenses on my eyes for accurate objective measurements of my refraction state.
Very useful video
Thank you so much ❤️
BEST BEST BEST PLEASE KEEP UP THIS BEST WORK
Why do Optometrists use minus cylinder, rather than plus cylinder?
شرح رائع جداً
Can you please upload more videos from American academy
08:30 horizontal and vertical meridian
Aren't you supposed to start in the + Direction by starting with + fears to fog the patient and relax his accommodation?
Come up with a JCC procedure
09:22 with,neuraland against movement
29:18 trung hòa thực tế
27:53 thực tế
09:08 ví dụ trung hòa
Complete 14 july