Search:

Type: Posts; User: Robert Martellaro; Keyword(s):

Page 1 of 20 1 2 3 4

Search: Search took 0.13 seconds; generated 26 minute(s) ago.

  1. Replies
    7
    Views
    183

    The near point blur is due to power, position, or...

    The near point blur is due to power, position, or both. Strongly recommend standard corridors for task glasses, confirm that add power is not too strong, verify that the distance PD was used for the...
  2. Replies
    7
    Views
    183

    The +1.50 is the old add? Distance the same?...

    The +1.50 is the old add? Distance the same? Might just be that the wearer became used to a longer work distance at near and the stronger add is blurring that distance.

    I saw a lot of folks with...
  3. I observed no difference on the two people I...

    I observed no difference on the two people I tested under unfiltered summer sun (43˚ latitude), brown polarized, AR coated sunglasses, with a very good light seal, and clear AR coated eyeglasses.
  4. Fun, if you enjoy "jerking away in the sand". See...

    Fun, if you enjoy "jerking away in the sand". See Robin Williams explaination of the game below (language).

    https://www.youtube.com/watch?v=14NQIq4SrmY&t=104s
  5. Replies
    1,586
    Views
    7,796,962

    Postmodern Jukebox - Barbie Girl 2015 ...

    Postmodern Jukebox - Barbie Girl 2015


    https://www.youtube.com/watch?v=4ReSV3CCRzg
  6. Replies
    6
    Views
    464

    Your welcome. Yes. Titrating the prism might...

    Your welcome.

    Yes.
    Titrating the prism might be the only solution if they won't allow a more appropriate frame size/shape/lens design.

    Hope this helps,

    Robert Martellaro
  7. Replies
    6
    Views
    464

    Base in prism should cause slanting down to the...

    Base in prism should cause slanting down to the right and left. It takes about 5 to 10 days for the brain to remap the image, with adaptation occurring almost overnight.

    Fitting closer reduces...
  8. Replies
    14
    Views
    1,018

    https://www.youtube.com/watch?v=FuXpD3xDwvU

    https://www.youtube.com/watch?v=FuXpD3xDwvU
  9. Replies
    1,586
    Views
    7,796,962

    Freddie King - Ain't No Sunshine 1973 ...

    Freddie King - Ain't No Sunshine 1973


    https://www.youtube.com/watch?v=2uVhgeTUQRo
  10. Replies
    1
    Views
    166

    Solar Eclipse/Corona/Eye Safety

    Remove your solar glasses (ISO 12312-2) so that the corona becomes visible. Do not look at the event during totality with the solar glasses or filters in place- you will see nothing.
    ...
  11. Replies
    1
    Views
    180

    New York Earthquake

    https://www.youtube.com/watch?v=Cczqpb421So

    Fox reports the United Nations building is leaning to the right, MSNBC to the left.
  12. Replies
    1,586
    Views
    7,796,962

    Previously posted....

    Previously posted. https://www.optiboard.com/forums/showthread.php/40333-Old-Tunes-on-Youtube?p=566323&viewfull=1#post566323

    Big Skynard fan though, especially when Steve Gaines joined the group....
  13. Replies
    1,586
    Views
    7,796,962

    Trombone Shorty - St. James Infirmary 2012 ...

    Trombone Shorty - St. James Infirmary 2012


    https://www.youtube.com/watch?v=FSbP6ZhfPs0
  14. Replies
    1,586
    Views
    7,796,962

    Barefoot Jerry - You Can't Get Off With Your...

    Barefoot Jerry - You Can't Get Off With Your Shoes On 1975


    https://www.youtube.com/watch?v=3ICsXSjU17E
  15. Replies
    52
    Views
    4,076

    Scroll down to "Puzzle" and the differences...

    Scroll down to "Puzzle" and the differences between virtual and real images.

    https://www.eophtha.com/posts/fun-with-prisms-in-ophthalmology
  16. Replies
    1,586
    Views
    7,796,962

    Muddy Waters - Can't Get No Grindin' 1973 ...

    Muddy Waters - Can't Get No Grindin' 1973

    Guitars- Hollywood Fats (age19), Bob Margolin, Calvin "Fuzz" Jones
    Drums- Willie 'Big Eyes' Smith
    Keys- Pinetop Perkins
    Mississippi Sax- Mojo...
  17. https://www.youtube.com/watch?v=9hNIX7V21pU

    https://www.youtube.com/watch?v=9hNIX7V21pU
  18. Looks like the B&L I have. Yes, it rotates,...

    Looks like the B&L I have. Yes, it rotates, that's how you find the degree of astigmatism, if any, and the axis. I remember one that had a drum that was hard to turn- lubrication fixed it, but I...
  19. Replies
    1,586
    Views
    7,796,962

    Neighborhood Picnic Band - Shine On You Crazy...

    Neighborhood Picnic Band - Shine On You Crazy Diamond 2019


    https://www.youtube.com/watch?v=Xoq7LrfqKk8
  20. Replies
    3
    Views
    3,410

    https://www.youtube.com/watch?v=cXT8JgdvCHc

    https://www.youtube.com/watch?v=cXT8JgdvCHc
  21. Replies
    35
    Views
    1,721

    By means of prismatic spectacles, the visual...

    By means of prismatic spectacles, the visual field can be reversed or distorted (e.g., switching top and bottom, or left and right). Visuomotor skills recovered to near-baseline levels after long...
  22. Replies
    1,586
    Views
    7,796,962

    John Prine - Hello in There 1978? ...

    John Prine - Hello in There 1978?


    https://www.youtube.com/watch?v=5-zYNPdT1a4

    A friend in the radio biz in the mid-70's made a cassette mix-tape with many powerful songs that were new to me,...
  23. Prentice Pro 9000, Corrected curve...

    Prentice Pro 9000,

    Corrected curve theory/best form breaks down over plus eight or nine diopters, where only aspheric/atoric surfaces are capable of reducing marginal astigmatism. So yes,...
  24. There you go. Maybe irregular astigmatism,...

    There you go. Maybe irregular astigmatism, probably higher order aberrations (coma etc.), becoming more noticeable with the stronger add. You could try a different PAL design, but ultimately...
  25. The OP said it was a lenses only job, the frame...

    The OP said it was a lenses only job, the frame parameters are identical for both.

    The only problem is the client- moving the bevel back helps make the lens look thinner, especially with...
Results 1 to 25 of 499
Page 1 of 20 1 2 3 4