Retinoscopy Plus Cylinder Full Tutorial with Phoropter
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Күн бұрынFull 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
@trianahardianti 3 ай бұрын
Thank you Dr Guyton n team
@otiebrown9999 Жыл бұрын
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.
@otiebrown9999 8 ай бұрын
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.
@robertosousa1348 3 жыл бұрын
Retinaoscopy guru.....my hero. Could watch this video daily..love it!
@doublevision.productions 5 жыл бұрын
following this channel very closely, exactly what i needed, THANK YOU SO MUCH!!
@manojpuri4108 2 жыл бұрын
Very useful video Thank you so much ❤️
@real_sza3352 2 жыл бұрын
BEST BEST BEST PLEASE KEEP UP THIS BEST WORK
@otiebrown9999 2 ай бұрын
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.
@user-ig9yw3pj1x Жыл бұрын
شرح رائع جداً
@otiebrown9999 Жыл бұрын
Why do Optometrists use minus cylinder, rather than plus cylinder?
@LearnQuran820 4 жыл бұрын
Can you please upload more videos from American academy
@Leo-cw6bc 10 ай бұрын
29:18 trung hòa thực tế
@rimshamuskan9860 4 жыл бұрын
Come up with a JCC procedure
@dennistucker9120 4 жыл бұрын
Aren't you supposed to start in the + Direction by starting with + fears to fog the patient and relax his accommodation?
@Leo-cw6bc 10 ай бұрын
27:53 thực tế
@G_and_H Жыл бұрын
08:30 horizontal and vertical meridian
@G_and_H Жыл бұрын
09:22 with,neuraland against movement
@Leo-cw6bc 10 ай бұрын
09:08 ví dụ trung hòa
@syarafinamalek2668 Жыл бұрын
Complete 14 july
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