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I do my own refraction. Refraction = +0.5 Diopters. 20/20 Snellen

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.

As always David Guyton is a brilliant ophthalmologist who was of great value as we worked on a proposal to help pilots avoid entry into myopia - if they had the technical and scientific interest to do so.

Great. All mechanical.

Thank you Dr Guyton n team

That equipment should be self leveling.

This was helpful. Also, Love seeing this vintage video!

Perfect thank you

Thx u

I love this video 😊

A great job! Thank you! Otis

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.

27:53 thực tế

09:08 ví dụ trung hòa

29:18 trung hòa thực tế

Best video ever

Great video. Lots of info tightly packaged.

Complete 14 july

شرح رائع جداً

Thanks it was useful

Hi, I was not aware of these Retinoscopy problems. I now measure my refractive state, using my Snellen and test lenses. Current status. 20/20, on Snellen. Refractive state = +0.5 Diopter, both eyes. Near? Good at 20 inches.

Dr. Guyton was great to send me a myopia prevention paper by Dr. Stirling Colgate. That was a major discovery about the concept of myopia prevention in my life.

I have two habitual reading distance. 20 inches, ( -0.5 meter) I therefore use a +2 diopter lens. For my Cell Phone, I use a +4 diopter, reading at 10 inches (0.25 meters). Doing this, completely ends the effect of long term close work. This protects my 20/20 vision, so I do not enter into myopia, a second time.

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.

Why do Optometrists use minus cylinder, rather than plus cylinder?

09:22 with,neuraland against movement

08:30 horizontal and vertical meridian

Took me 15 years to get this right 😅

Bonjour esque cela est fiable pour un oeil opéré ?

Which retinoscope is he using ?

Informative

BEST BEST BEST PLEASE KEEP UP THIS BEST WORK

Please please make more videos like this These videos are so helpful for us students, please make new videos too.

Really love this channel. It’s very helpful to Optometrists.

Very nice video!

Nice. But, with 20/20, it is doubtful that "cylinder correction", is ever even necessary. To avoid conflict on this issue, I measure my own refractive status, by using my Snellen and Test Lens Kit. Refractive status = +0.5 Diopters.

A compliment to review!

Retinoscope Of Which brand?

"it's really straightforward'

Very useful video Thank you so much ❤️

so beautifully demonstrated

Hello. Thanks so much for your nice videos. Is it possible for you that explain the last paragraph of your speech about focusing the parent's vision according to the distance of acuity chart? Really I need to get it. Thank you again.

If you slow this shit down, it looks like faces

I am here because of daily dose of the internet

Retinaoscopy guru.....my hero. Could watch this video daily..love it!

I was raised Presbyopian but I converted to Catholicism in 2013

Very useful content👍

Most visual acuity, develops within one degree of the optical disk.

I use a Snellen and my own Trial Lenses. Far more accurate that a Phoropter. I now read 20/20, on my Home Snellen. My refractive state, is +0.5 diopters. This is not a "refractive error". This is simply the nornal eye.