Retinoscopy Plus Cylinder Full Tutorial with Phoropter
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- Опубликовано: 2 авг 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.
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.
Retinaoscopy guru.....my hero. Could watch this video daily..love it!
following this channel very closely, exactly what i needed, THANK YOU SO MUCH!!
Very useful video
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.
BEST BEST BEST PLEASE KEEP UP THIS BEST WORK
شرح رائع جداً
29:18 trung hòa thực tế
Come up with a JCC procedure
Can you please upload more videos from American academy
08:30 horizontal and vertical meridian
27:53 thực tế
09:22 with,neuraland against movement
Why do Optometrists use minus cylinder, rather than plus cylinder?
Aren't you supposed to start in the + Direction by starting with + fears to fog the patient and relax his accommodation?
09:08 ví dụ trung hòa
Complete 14 july