Contact Lenses Forum - Lens 101
SITE SPONSOR
contact lenses

Go Back   Contact Lenses Forum - Lens 101 > Contact Lens Forums > Toric Contact Lenses
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Toric Contact Lenses A discussion of toric contact lenses (for astigmatism) such as Acuvue Advance for Astigmatism, Acuvue Oasys for Astigmatism, Air Optix for Astigmatism, Biomedics Toric, ClearSight 1 Day Toric, Biofinity Toric, Cooper Toric, CSI Toric, Durasoft 2 Optifit Toric, Durasoft 2 Optifit Toric - Colors, Durasoft 3 Optifit Toric, Durasoft 3 Optifit Toric - ColorBlends, Durasoft 3 Optifit Toric - Colors, Durasoft 3 Optifit Toric - Complements, Durasoft 3 Optifit Toric UV, Encore Toric, Focus Dailies Toric, Focus Monthly Toric, Frequency 55 Toric, Frequency 55 Toric XR, FreshLook ColorBlends Toric, FreshLook Toric, Hydrocurve 3 Toric, Optima Toric, Preference Toric DW, Preference Toric XR, Proclear Toric, Proclear Toric XR, PureVision Toric, SofLens 66 Toric, Torisoft, Vertex Toric, Vertex Toric XR ...


Join Lens 101Welcome to the Contact Lenses Forum - Lens 101 forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

Monovision Toric Lenses

This is a discussion on Monovision Toric Lenses within the Toric Contact Lenses forums; Hi Guys, I am new to contact lenses and to this site so please be ...


Reply
 
LinkBack Thread Tools Display Modes
Site Sponsor
  #1 (permalink)  
Old 09-11-2010, 04:30 PM
Contact Lenses Forum - Freshman
 
Join Date: Sep 2010
Posts: 3
Default Monovision Toric Lenses

Hi Guys, I am new to contact lenses and to this site so please be gental with me.

Right, over the last 3 - 4 weeks my optician has been trying me with different contact lenses, I need toric lenses and I currently wear vary-focal glasses, the optician has said I can't get bifocal contacts in my prescription, so she is trying me with monovision lenses.

I am right handed but my dominant eye is my left eye. I received the new contact lenses yesterday and have worn them for a few hours and everything is still blurry. I know they take weeks and months to get used to but I have noticed the lens for distance I have been given is in my right eye (non dominant) and the near vision lens is in the dominant eye. Is this correct, everywhere I read it should be the other way round, or is it normal for the optician to put them the other way round? i.e. the distance lens in the non dominant eye.
I don't want to go back to the optician, telling her she has made a mistake to find out it is correct and feel like a right prat.
Any advice on this would be most appreciated.
Reply With Quote
  #2 (permalink)  
Old 09-12-2010, 06:22 AM
Contact Lenses Forum - Ph.D.
 
Join Date: Nov 2009
Location: near Hamburg, Germany
Posts: 2,144
Default

Quote:
Originally Posted by lxmanager View Post
Hi Guys, I am new to contact lenses and to this site so please be gental with me.

Right, over the last 3 - 4 weeks my optician has been trying me with different contact lenses, I need toric lenses and I currently wear vary-focal glasses, the optician has said I can't get bifocal contacts in my prescription, so she is trying me with monovision lenses.

I am right handed but my dominant eye is my left eye. I received the new contact lenses yesterday and have worn them for a few hours and everything is still blurry. I know they take weeks and months to get used to but I have noticed the lens for distance I have been given is in my right eye (non dominant) and the near vision lens is in the dominant eye. Is this correct, everywhere I read it should be the other way round, or is it normal for the optician to put them the other way round? i.e. the distance lens in the non dominant eye.
I don't want to go back to the optician, telling her she has made a mistake to find out it is correct and feel like a right prat.
Any advice on this would be most appreciated.
Hello lxmanager and welcome to the forum

I don't think you should feel that it is a problem to phone the optician and query the dominant eye issue. After all, you are paying for the lenses/your optician is providing a service and that should include reassuring you that everything is OK. You do have vision problems at present, so no harm in phoning the optician.

I am not sure if your dominant eye will switch to the other one or not over time, while you wear the distance correction in the non-dominant eye.

What is your spectacle prescription anyway?

knotlob
Reply With Quote
  #3 (permalink)  
Old 09-12-2010, 07:29 AM
Contact Lenses Forum - Freshman
 
Join Date: Sep 2010
Posts: 3
Default

Hi Knotlob, thanks for your reply. I contacted the opticians today (Sunday), they are checking it and said they will get back to me on Monday.

My last spectical prescription is

Right Eye

Distance - sph +1.25, cyl -2.50, axis 120.0
Near - sph +2.50, cyl -2.50, axis 120

Left Eye

Distance - sph +0.75, cyl -1.75, axis 58.0
Near - sph +2.00, cyl -1.75, axis 58.0

What they have given me for these contact lenses is

Right Eye

8.7, 14.5, +0.75, -0.75 x 120

Left Eye

8.7, 14.5, +2.00, -0.75 x 070

To be honest i don't understand fully what all this means so could not say if the optician is right or not..
Reply With Quote
  #4 (permalink)  
Old 09-12-2010, 09:04 AM
Contact Lenses Forum - Ph.D.
 
Join Date: Nov 2009
Location: near Hamburg, Germany
Posts: 2,144
Default

Quote:
Originally Posted by lxmanager View Post
Hi Knotlob, thanks for your reply. I contacted the opticians today (Sunday), they are checking it and said they will get back to me on Monday.

My last spectical prescription is

Right Eye

Distance - sph +1.25, cyl -2.50, axis 120.0
Near - sph +2.50, cyl -2.50, axis 120

Left Eye

Distance - sph +0.75, cyl -1.75, axis 58.0
Near - sph +2.00, cyl -1.75, axis 58.0

What they have given me for these contact lenses is

Right Eye

8.7, 14.5, +0.75, -0.75 x 120

Left Eye

8.7, 14.5, +2.00, -0.75 x 070

To be honest i don't understand fully what all this means so could not say if the optician is right or not..
Hello lxmanager

Thanks. I will rearrange these figures into the more normal layout and explain what they mean, so it will help you understand.

Right Eye
Spectacle Prescription
+1.25, -2.50 (cyl), 120 (axis), +2.50 (Add)

contact lens
+0.75, 8.7, 14.5, -0.75 x 120

Left Eye
Spectacle Prescription
+0.75, -1.75 (cyl), 58 (axis), +2.00 (Add)

Contact lens
+2.00, 8.7, 14.5, -0.75 x 070

So, explaining the terms for your right eye:
Spectacles
+1.25D (Spherical strength in Dioptres, this is a convex lens, fatter in the middle than the outside, like a magnifying lens).
-2.50D (Cyl) is the Cylindrical correction in Dioptres which corrects your astigmatism
120 Degrees is the angle at which the cylindrical astigmatic correction is applied
+2.50D is the Close Range (Reading) correction (a convex lens again).
Contact Lens
+0.75D (Long distance correction)
8.7mm Base Curve of the lens so it fits over your cornea,
14.5mm Diameter of the Contact Lens
-0.75 Dioptre is the Astigmatic Cylinder Correction
120 Degrees is the axis angle for the toric lens correction

These results look strange.

The contact lenses don't fully correct your astigmatism (e.g. for right eye, spectacles -2.5D cyl, contact lens -0.75D) & (for left eye, spectacle -1.75D cyl , Contact lens -0.75D cyl).

In addition, for your long distance correction, your right eye is not fully corrected for long distance (0.50 D too weak). Your optician has corrected your left eye to allow you to see close up objects/reading better, though I don't think as strong as to match your spectacle ADD prescription. The vertex correction, which is the difference in spectacle and contact lens prescriptions due to the contact lens being on your eye as opposed to about 12mm between your cornea and the spectacle lenses, is in this case negligible so is not a factor.

I would expect with mono vision, to have one eye (usually dominant) to be corrected for far distance/driving, etc. and the other eye to be less good for driving but better for reading.

I hope you understand all these figures or at least it helps somewhat!

knotlob
Reply With Quote
  #5 (permalink)  
Old 09-12-2010, 10:23 AM
Contact Lenses Forum - Freshman
 
Join Date: Sep 2010
Posts: 3
Default

Thanks Knotlob, I think I understand, I am guessing from what you are saying, as well as getting the lenses the wrong way round they have messed up on the strengths as well.

I will see what they have to say tomorrow and let you know.
Reply With Quote
  #6 (permalink)  
Old 09-12-2010, 11:20 AM
Contact Lenses Forum - Ph.D.
 
Join Date: Nov 2009
Location: near Hamburg, Germany
Posts: 2,144
Default

Quote:
Originally Posted by lxmanager View Post
Thanks Knotlob, I think I understand, I am guessing from what you are saying, as well as getting the lenses the wrong way round they have messed up on the strengths as well.

I will see what they have to say tomorrow and let you know.
Yes, sometimes they have to compromise on the strength of the toric conversion and the axis to match what is actually available in the contact lenses that they have prescribed for you, but these don't look quite right to me and that seems to be backed up by your own vision experience.

Let us know how you get on at the optician.

knotlob
Reply With Quote
  #7 (permalink)  
Old 09-21-2010, 10:29 AM
Contact Lenses Forum - Freshman
 
Join Date: Sep 2010
Posts: 6
Default

Quote:
Originally Posted by lxmanager View Post
Hi Guys, I am new to contact lenses and to this site so please be gental with me.

Right, over the last 3 - 4 weeks my optician has been trying me with different contact lenses, I need toric lenses and I currently wear vary-focal glasses, the optician has said I can't get bifocal contacts in my prescription, so she is trying me with monovision lenses.

I am right handed but my dominant eye is my left eye. I received the new contact lenses yesterday and have worn them for a few hours and everything is still blurry. I know they take weeks and months to get used to but I have noticed the lens for distance I have been given is in my right eye (non dominant) and the near vision lens is in the dominant eye. Is this correct, everywhere I read it should be the other way round, or is it normal for the optician to put them the other way round? i.e. the distance lens in the non dominant eye.
I don't want to go back to the optician, telling her she has made a mistake to find out it is correct and feel like a right prat.
Any advice on this would be most appreciated.
Hi! Your vision is extremely important to you, right? NEVER worry about asking too many questions. My Doctor had my lenses backwards. They thought my dominant eye was on the left, when it was actually my right eye. She switched the contacts and also adjusted the prescription and what a difference! I was almost ready to accept the contacts the way they were because it was better than nothing. Keep going back until you are they get it right. It's their job. Just thank them for being so willing to work with you as long as it takes. I have gone back 5 times and I still feel like there is alittle more the Doctor may need to do. Hope I have helped. Don't settle.
Reply With Quote
  #8 (permalink)  
Old 09-21-2010, 10:59 AM
Contact Lenses Forum - Senior
 
Join Date: Dec 2007
Posts: 215
Default

Quote:
Originally Posted by Kaywood View Post
Hi! Your vision is extremely important to you, right? NEVER worry about asking too many questions. My Doctor had my lenses backwards. They thought my dominant eye was on the left, when it was actually my right eye. She switched the contacts and also adjusted the prescription and what a difference! I was almost ready to accept the contacts the way they were because it was better than nothing. Keep going back until you are they get it right. It's their job. Just thank them for being so willing to work with you as long as it takes. I have gone back 5 times and I still feel like there is alittle more the Doctor may need to do. Hope I have helped. Don't settle.
You're right, Kaywood. Don't settle, especially when it comes to your eyes. If your eye doctor insists that your vision can't be any better with contacts, consider a second opinion.
Reply With Quote
Reply

Bookmark This Site
Add a link on your site or blog
Toric Contact Lenses Ask a question about Toric Contact Lenses , start a discussion, share your opinion, or write an online review and share your experience with Toric Contact Lenses contact lenses.

Copy and Paste HTML Below:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 10:12 PM.


Contact Lenses

/ Contact Lens Forums
Daily Disposable Contact Lenses 2
1-2 Week Disposable Contact Lenses
Monthly Disposable Contact Lenses
Color Contact Lenses 2 3 4 5 6 7
Gas Permeable Contact Lenses 2 3
Toric Contact Lenses 2 3
Bifocal Contact Lenses 2
Vial Contact Lenses
Other Contact Lenses 2 3, & Contact Lens Care 2 3 4 5 6 7 8 9 10 11

Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.2.0 RC7 ©2008, Crawlability, Inc.
Copyright 2001 - 2010 eyeTopics.com, Inc. All rights reserved.

Any materials provided on this web site are for informational purposes only. Have your eyes examined regularly and always follow your eye care professional's instructions for the proper use and care of your contact lenses. IF YOU ARE HAVING ANY UNEXPLAINED EYE DISCOMFORT, WATERING, VISION CHANGE OR REDNESS, REMOVE YOUR LENSES IMMEDIATELY AND CONSULT YOUR EYE CARE PROFESSIONAL BEFORE WEARING YOUR CONTACT LENSES AGAIN.

Site operated by eyeTopics.com, Inc.