Results 1 to 10 of 10

Thread: Very high myope question

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Bad address email on file
    Join Date
    Nov 2006
    Location
    Vancouver
    Occupation
    Optical Retail
    Posts
    4

    Very high myope question

    I hope Im doing this right,forgive me, its my first post.

    I have never filled an Rx this extreme before.

    -20.50 -4.00 x175
    -20.50 -4.75 x005

    Her last lenses were hyper aspheric 1.66 double concave. Ive been
    told by my lab other options are Zeiss 1.70 and 1.67 blended myodisc.

    Anyone want to share their opinion on the pros and cons of these options.

    I am reluctant to change her into something else.I would like to know as much as I can going into this.

    Thank you
    Huddie

  2. #2
    Doh! braheem24's Avatar
    Join Date
    Feb 2001
    Location
    KOCF & 89ft ASL
    Occupation
    Other Eyecare-Related Field
    Posts
    3,843
    At that power frame selection is more important than 1.66 or 1.70 I've had a -26.00 look like a -8.00 with the correct frame shape, size and PD combination.

    Keep in mind at this RX OC is as important as PD and should have no decentration if possible also.

    Good Luck :cheers:

  3. #3
    Banned
    Join Date
    Jun 2000
    Location
    Only City in the World built over a Volcano
    Occupation
    Dispensing Optician
    Posts
    12,996

    Ah Hah!

    Sorry I just couldn't resist: THE PATIENT NEEDS BI-TORIC RIGID CONTACT LENSES!

    Any sort of glasses will do for back up and finding the contacts, she won't wear the glasses anyway except for this purpose once she sees what it is possible to see with this Rx and well fitted bi-toric rigid contact lenses.

    Chip

  4. #4
    Underemployed Genius Jacqui's Avatar
    Join Date
    Oct 2003
    Location
    Frostbite Falls, Mn.
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    7,417
    Rx's like this are not hard to make. X-cel has semi-finished myodisks in 1.67 index -6.25 base curve. Just have a competent independent lab make them and fit them as Braheem has said.

  5. #5
    Master OptiBoarder rbaker's Avatar
    Join Date
    May 2000
    Location
    Gold Hill, OR
    Occupation
    Other Optical Manufacturer or Vendor
    Posts
    4,401
    Quote Originally Posted by braheem24 View Post
    At that power frame selection is more important than 1.66 or 1.70 I've had a -26.00 look like a -8.00 with the correct frame shape, size and PD combination.

    Keep in mind at this RX OC is as important as PD and should have no decentration if possible also.

    Good Luck :cheers:
    And, of course, lets not forget vertex compensation if needed although I'll bet the refractionist doesn't have the foggiest idea of the actual distance.

  6. #6
    Master OptiBoarder OptiBoard Gold Supporter DragonLensmanWV's Avatar
    Join Date
    Oct 2006
    Location
    The Greatest Nation
    Occupation
    Optical Retail
    Posts
    7,645
    And also of course don't forget ABBE. If you can get it in the Zeiss 1.70, do so.ABBE is not a problem for me now, bit I used to be a -15.00 -2.00,and believe me, it's very important at that power. As others mentioned, frame selection is very important also.
    DragonlensmanWV N.A.O.L.
    "There is nothing patriotic about hating your government or pretending you can hate your government but love your country."

  7. #7
    Rising Star
    Join Date
    Aug 2006
    Location
    SD
    Occupation
    Optometrist
    Posts
    77
    My mother has a similar Rx, -19.00 with some cyl. I agree with whoever said frame selection is key. The first frames we put her in were too wide (she has a narrow pd) and the temporal side of the lens looked ridiculous. Expensive lesson learned. The next frames we did were small, so her pupils were as close to center as possible, with thick temples to hide the thickness. They looked great, or about as great as -19s can look. The lenses we used were 1.67 SV with AR.

  8. #8
    Bad address email on file
    Join Date
    Nov 2006
    Location
    Vancouver
    Occupation
    Optical Retail
    Posts
    4
    thanks everyone.

    Yes, I agree frame selection is very important .I am aware of the consequences of this choice.

    My main concern is taking her out of the double concave and putting her into something else.I dont know the benifits of the concave and why the last optician choose this lens over the other options. He has much more experience than I do ,but I cannot reach him to inquire.

    Obviously she prefers her contacts and will not wear these often except at home, but I dont want to give her less than she already has.

    So considering ABBE,VD, excellent independant lab and best frame selection..the lenses with the best optics in this Rx is the Zeiss 1.70 ?

    Thank you Jacqui for the myodisc suggestion.I have heard there is peripheral distortion due to the blending, is this not true ?

    regards and thanks in advance for anymore info,
    Huddie

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Question about 1.67 vs 1.74 high index
    By Stacy in forum Just Conversation
    Replies: 3
    Last Post: 07-31-2008, 05:29 PM
  2. Nauseous Myope in PAL??
    By Now I See in forum Progressive Lens Discussion Forum
    Replies: 27
    Last Post: 07-18-2008, 01:00 PM
  3. High Myope with Cyl
    By TAZOD in forum General Optics and Eyecare Discussion Forum
    Replies: 5
    Last Post: 12-18-2007, 02:04 PM
  4. Super high plus question?
    By drk in forum General Optics and Eyecare Discussion Forum
    Replies: 32
    Last Post: 07-15-2005, 07:47 AM
  5. High Myope in cl's
    By Suzy W in forum General Optics and Eyecare Discussion Forum
    Replies: 1
    Last Post: 11-27-2001, 07:44 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •