Posts Tagged ‘axis’

How to Convert Toric Lens Prescription to Normal Lens Prescription?

OK MY DOCTOR GAVE ME THE FOLLOWING CONTACT LENS PRESCRIPTION:
R -3.50 -0.50 X 90
L -3.75 -0.75 X 90

I THINK THE ABOVE IS FOR TORIC LENSES COS IT HAS AXIS VALUE. SO WHAT IS MY NORMAL SPHERICAL LENS VALUE ACCORDING TO THIS? I NEED THIS VALUE TO BUY NORMAL SPHERICAL LENSES ONLINE…PLEASE HELP!!!

FINALLY, IF YOU DONT KNOW THE ANSWER DONT ANSWER!!


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Which Contact Lens Prescription Is Worse?

Left : BC 8.70 DIA 14.5 Power -3.50 Cyl -1.25 | Axis 10

Right : BC 8.70 DIA 14.5 Power -3.00 Cyl -0.75 | Axis 180

Or

Left Eye: BC: 8.6 DIA 14.5 Pwr: -2.25/-2.25×160

Right Eye: BC: 8.6 DIA 14.4 Pwr: -1.00/-1.75×020

Thanks


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Given My Eye Glass Prescription, How Can I Convert to Contact Lens Prescription?

these are my prescription from my eye doctor 2 years ago
eye glass OD -1.75 cyl -1.00 axis 115
OS -1.75 -.75 70

doctor game me contact lens acuve astigmatism
contact lens OD -2.00 .75 110
OS -2.00 .75 80

today i had a new prescription i have only for my eye glass
OD -2.0 -.50 120
OS -1.75 -.50 083

new contact lens prescription is another 100 dollars extra given my new prescription how to convert to contact lens for acuve astigmatism


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What Does My Contact Lens Prescription Really Mean?

I’ve always been told my vision is 20/20. Recently I went to get an eye exam so that I could get plano lenses to change my eye color a little, and the optometrist said I needed a mild prescription:

Right…
Sphere: -0.25
Cylinder: -0.75
Axis: 020

Left…
Sphere: -0.25
Cylinder: -0.25
Axis: 175

What do these measurements mean? And is it advisable to ask for plain lenses anyway? I’ve never worn a prescription before and I don’t really see a point to wearing them if my vision seems fine.


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In a Contact Lens Prescription, Is the AXIS Really an Important Feature?

i mean when buying contacts online..i know all values except the axis..is there any default value i can use for axis n both eyes?
the problem is, i did the eye testing for contact lenses and when they told me the price it was really too much..for 6 months. i can get for less than half that price online. but when i asked for the prescription they did not give it. i must go again and tell them I am willing to pay for the prescription..and i have no idea of buying from them cos its too expensive. they have nothing to lose..only gain by me paying for the rx really.


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How Do I Convert My Glasses Prescription into a Contact Lens Prescription?

My glasses prescription is as follows:

SPHERE:
Right: -6.50
Left: -4.50

CYLINDER:
Right: -0.50
Left: -1.00

AXIS:
Right: 175
Left: 165

I’ve been told that contact lens prescription usually need to be 0.5 – 1 lower in strength?

Thanks for your help


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Would This Contact Lens Prescription Be Expensive?

I only have the eyeglass prescription though which is:
sp +.75 cylinder -.50 and axis 90 (for both eyes)
My optometrist recommended glasses to me, not contacts because contacts with farsightedness and my astigmatisms are only 80% effective (compared to 95% effective with glasses). He also said it the contacts would be complicated to get right.
Anyway, if I were to get contacts someday, would it be pretty expensive due to this complicated Rx? Does anyone know around how much? Our vision insurance is not that great, so it would be an out-of-pocket expense.


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How Important Is a .25 (astigmatism) Contact Lens Prescription?

My brother got a lens prescription with only one eye showing some astigmatism: Cylinder -0.25 (Axis 85)

Since the lowest increment with prescriptions is .25 (e.g., 1.25, 1.50, 1.75… etc) I was wondering how I amportant it is that I get hI am toric lenses for that eye (i.e. for astigmatism).

Problem is most companies sell toric lenses starting with .50 or .75 (cylinder), and also the idea of buying two types of lenses (normal and toric) is off-putting.
Custom made lenses are one solution but too expensive.
I should also note that, in the past, I’ve ordered myself lenses that were .25 off from my prescription in cylinder and power, and it made no difference to me.

So bottom line: should I ignore the -.25 astigmatism and just order normal lenses?
Expert or informed opinions please.


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What Does My Contact Lens Prescription Tell Me About My Vision?

I just recently began trying contact lens. I don’t think I’m necessarily nearsighted or farsighted, but instead have focus issues. When I received my glasses, I was able to wear them for both near and far.

The number for the Power of my lens is +0.00, which is what I’m wondering about. The Cylinder number is +1.25, which I believe is for astigmatism. The Axis number is 180.

Based on these numbers, can anyone tell me what, if anything, they are doing for my vision? I want to make sure that I’m wearing these things for a reason, and I don’t really want to question my eye doctor about it.

Thanks in advance for any help!


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Contact Lens Prescription HELP!?

If i have astigmatism, and my degree is

(left): -3.50 (SPH) -1.25 (CYL) x 170 (AXIS)
(right): -2.25 (SPH) -1.25 (CYL) x 180 (AXIS)

Then if i wear contact lens that are -3.75 (left) and -2.75 (right),
would it make a big difference :/

Will it completely blind/blur my vision if i wear those lens? T_T


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How Do I Read the Contact Lens Prescription on the Box?

i wear acuvue advance for astigmatism.

it says:

D -2.75
CYL -2.25
AXIS 170
BC 8.6
DIA 14.5

which 1 would be the power? on the site 1800contacts.com it says D, CYL, AXIS, BC, and DIA but where it says power which 1 of those numbers do i put in it?? please help me this is my first tI ame ordering contacts online.

thanks


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What Is the Axis for on a Contact Lens Prescription?

On my contact prescription, both of my eyes are exactly the same, except for the axis. My right eye has a 90 axis and my left eye has an 80 axis. Does a difference of 10 really make a huge difference? Is it possible to just to order one box of contacts with a 90 axis and use it for both eyes. I don’t have an extra 0 bucks for both boxes of contacts right now and my current contact just ripped. Will it matter much?
Right and left eye:
Power: -4.00
BC: 8.60
DIA: 14.50
CYL: -1.25

Right eye axis: 90
Left eye axis: 80


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If My Glasses Prescription Is OD -3.75 and OS -3.00, What Would My Contact Lens Prescription Be?

I am buying contacts from a Canadian pharmacy online because I am not going to spend for an eye exam when I just want one box of contacts for sports. I had contacts a few years ago so I know the BC and DIA already. My Spectacle Rx for OD is -3.75 and my OS is -3.00. How much should I change the prescription for Contact Lens Rx?
I am buying contacts from a Canadian pharmacy online because I am not going to spend for an eye exam when I just want one box of contacts for sports. I had contacts a few years ago so I know the BC and DIA already. My Spectacle Rx for OD is -3.75 and my OS is -3.00. How much should I change the prescription for Contact Lens Rx?
MORE:
OK I didn’t think that the CYL and AXIS mattered in contacts… my right eye is -.75 CYL and 056 AXIS, my left is -1.25 CYL and 002 AXIS. Does that change anything?
…And thanks so much for your help!


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What Form of Astigmatism Requires Correction?

I recently had cataract surgery and the AcrySof Toric IOL I amplanted in one eye. At the first checkup, my vision was:

SPH: +1.25
CYL: Nil
AXIS: Nil

Just 2 days ago, my follow up revealed the following

SPH: +1.00
CYL: -0.50
AXIS: 160

Q: During this period, I developed about -0.50 D of astigmatism. What are the chances of my Astig progressing until I’ll be needing astigmatic correction in the future?

Q: I hear from my surgeon that some form of astigmatism can be beneficial for my overall vision. What qualify it as "beneficial astigmatism"?

Q: It is believed that mild level of astigmatism does not warrant correction. What range is considered as "mild"? Will my current level of astigmatism require vision correction?

Q: My concern is since my IOL is a toric lens, initial tests showed that it corrected 100% of my astigmatism. The sudden appearance of -0.50 D of Astig, may mean the IOL is rotating inside my eye, thus negating any correction by the IOL? How likely is that the case?


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Contact Lens Prescription Help?

my glasses prescription is OD Sph +3.75 Cyl -2.25 Axis 098 OS Sph +3.25 Cyl -2.25 Axis 080. My contact Lens script is OD Sph +3.50 Cyl -1.75 Axis 100 OS +3.00 Cyl -1.75 Axis 80. and then the base curve stuff etc. My Question is, is this conversion right it feel like I am straining to see a bit. I have had enough of my ophthalmologist and think she might have screwed this up.


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Help with Contact Lens Prescription?

My contact lens prescription is
OD BC:8.4,Dia:14.4,P:+0.25,P_Cyl:-0.75, P_Cyl_Axis:90
OS BC:8.4,Dia: 14.4,P: +2.25,P_Cyl: -0.75, P_Cyl_Axis: 90

It is written for proclear toric lenses. I want color contact which do not come in prolear toric. Do I really need toric? How would my prescription translate to regular contact lenses. There are many options – but not in toric. And the toric ones don’t seem to have the same corresponding numbers. Can someone help me? I have been back to this doctor but he only wants to sell me the clear ones…


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Can I Wear Regular Contacts if I Have Bad Astigmatism?

This is gonna sound stupid but i have astigmatism but i would like to wear regular contacts. I dont know so il put my prescription
SPH -6.00, -7.50 / CYL -2.25 (both) / Axis 180 (both) / B.C 8.6 / DIA 14.5
How bad would i see if say if i got regular contacts since i dont really just want to throw away money. I mean its not like I need a hawk’s vision since I sit in front of class and work is really in front my face and the majority of things I do I dont need to see very far away or 100% clear. I ask cuz i would like to try different brands and even colors but I cant since i have astigmatism. Like I want to try those 30 day extendable wear contacts since sometI ames I forget and I sleep with them (stupid me). Would say can I just get them without astigmatism correction, like companies advertise free trials so I guess I would not risk losing money and try them out to see if its a really big difference.


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How Can I Tell My Prescription from My Contact Lens Boxes?

I want to maybe get a pair of prescription goggles for the swI am team. There are a bunch of numbers on my contact box, but the prescription goggles only have an option to choose the "power".
What’s the correlation? And what if my eyes are slightly different from each other?
The numbers are labled:
BC
DIA
D
Cyl/AXIS

How do I convert these values into a "power"?


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HELP!!!! HELP!!!! PLEASE CONVERT THIS TORIC CONTACT LENS PRESCRIPTION TO NORMAL CONTACT LENS PRESCRIPTION!!!!!

OK MY DOCTOR GAVE ME THE FOLLOWING CONTACT LENS PRESCRIPTION:
R -3.50 -0.50 X 90
L -3.75 -0.75 X 90

I THINK THE ABOVE IS FOR TORIC LENSES COS IT HAS AXIS VALUE. SO WHAT IS MY NORMAL SPHERICAL LENS VALUE ACCORDING TO THIS? I NEED THIS VALUE TO BUY NORMAL SPHERICAL LENSES ONLINE…PLEASE HELP!!!


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Need to Convert a Eyeglass Prescription to an Contact Lens Prescription?

What would my contact lens prescription be approxI amately?

____Sph___Cyl___Axis
R___T.25__T.50___90
L___T.75___.25___ 85
__________(^This part has a o with a – over the top)
Please help =)


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