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Frequently asked questions: Toric lenses

Ask any question regarding contact lenses and we will answer it within a few days. The most interesting questions will be displayed on our site.

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What contact lenses are there for people with astigmatism?

Question: I need toric contact lenses. On my right eye I have 0,25 dioptres, cylinder –0,75, axis 180. Left eye: 0,0D, cylinder –0,75, axis 180. Can you please tell me what my options are?

Reply: Unfortunately, I can only answer your question indirectly. You shouldn’t look for the right contact lenses on the Internet, the most suitable type should be recommended by your contactologist. Simply knowing your parameters is not enough.


Contact lenses for astigmatism

Question: I would like to ask for advice regarding contact lenses. Until now I’ve only been wearing glasses so I don’t know which ones to choose from the wide selection. I’ve got astigmatism.

Reply: You will very likely need toric contact lenses for the astigmatism correction. To choose the right type of contact lenses, please call a contactologist (or ophtalmologist / optometrist) and make an appointment for contact lens application. You will find out why by following the link to the the Contact lens guide.


Contact lenses for astigmatism and short-sightedness

Question: I have astigmatism and short-sightedness. 1 dioptre on left eye which is the cylinder and 7,75 dioptres on the right eye, approx. 2,5 which is cylinder. Can contact lenses be used for such a significant difference? How long do they last?

Reply: There is quite a big difference between the left and the right eye. Differences over 3dtp are usually corrected more effectively with lenses than glasses. Visit a contactologist who will recommend the best solution for you.


What is the cylinder parameter?

Question: Can I ask you what the cylinder parameter means?

Reply: Cylinder is a special alteration of a lens (whether a contact lens or glasses lens) that corrects astigmatism. You can find what astigmatism is in our glossary.


Contact lenses for oblique axis of astigmatism

Question: I went to an ophthalmologist today and she told me I could wear contact lenses but that I have astigmatism (in my right eye). Apparently, there are no contact lenses for my type of astigmatism so she’d give me normal ones and we’ll see what my vision will be like. On the left eye, I have +3.00 dpt and on the right +4.75 dpt, cylinder 0,75 and axis 70. Is it true that there are no such contacts? I find it odd.

Reply: There are no daily contact lenses for “oblique axis” (i.e. yours 70°). You could, however, choose from monthly contacts. For example Frequency X-Cell Toric, or Pure Vision Toric.


Toric lens is visible due to its big diameter

Question: I wear a toric lens on one eye, I don’t need it for the other. My optometrist recommended Acuvue Advance for astigmatism and Acuvue Advance for the other eye. They both have a different diameter and my problem is that because of that, you can see the lens in one of my eyes (but not in the other). Could you maybe think of a different combination of lenses where there wouldn’t be such a difference in size? My left eye is –1,25 dpt, cyl. –0,75, axis 120, right eye axis 120.

Reply: Toric Contact Lenses generally have a larger diameter than Spherical Contact Lenses. Your problem would thus be the same with other possible combinations. But I also think that you are maybe a bit too self-conscious. Only a few people would notice the difference in your contact lenses.


Cylinder value of contact lenses

Question: I would like to ask what role the axis does (or doesn’t) play when it comes to cylinder. My doctor told me that I don’t need toric lenses. My left eye values are: –5.00, cylinder 0,5 and axis 0, right eye: –4,00, cylinder 0,5 and axis 180. I think I read somewhere that if your cylinder is below 0,75, there’s no need to wear toric lenses. How big can the cylindrical axis be? Is it true that you should visit your contactologist again after a month when you start wearing contact lenses for the first time? Is this applicable only for toric lenses or for normal ones as well? My doctor didn’t mention it (I should mention that I haven’t been to a lens application yet and I’m just collecting information at the moment).

Reply: The axis only determines cylinder orientation, it doesn’t have any size in terms of dioptre values. Astigmatism smaller than 0,75cyl can’t be corrected with contact lenses because lenses with such values don’t exist. A check-up after the first application should be done within a few days (up to one month) and every 6 months afterwards. The regularity isn’t determined by whether you have Toric Lenses or Spherical Lenses. It can be, however, influenced by the intensity of wearing – if you only use lenses 1–2× a week, the check-up interval can be longer if so agreed with your contactologist. And vice versa, if you have Extended Wear Contact Lenses contact lenses (you don’t take them out at night), it’s better to have check-ups more frequently.


Toric lenses

Question: I wear biweekly toric contact lenses and I would like to start using dailies, however, none of them have my diameter and curvature (RE: D = –4,75, CYL = –1,25, axis = 180°, curvature = 8,6, DIA = 14,5; LE: D = –4,75, CYL = –1,25, axis = 170°, curvature = 8,6, DIA = 14,5). Is it possible to try a smaller diameter or do I have to see a contactologist?

Reply: It is impossible for us to say if a different diameter and curvature will suit you. Diameter plays an important role with how the lens fits on the eye – a diameter smaller than the cornea can cause problems and a bigger one can make contact lens application more difficult for users with narrower eye slits. Lens curvature corresponds to the eye curvature and it should copy the cornea as closely as possible. A doctor should measure these parameters for you – if you buy lenses with the wrong curvature, the lens might not sit right on the eye. It could cause gritty feelings or be loose. I would definitely recommend you visit a doctor who will measure all parameters, recommend a suitable contact lens type and give you a trial pair. Other parameters such as material, oxygen permeability and water content also matter. You will thus eliminate the risk of buying contact lenses that won’t fit properly.


Which contact lenses should I buy? Thank you for your answer.

Question: I was wearing toric contact lenses. I fell out with my optician so the only thing I have are his notes about my lenses:

  • 4.0 –1.5 80 degrees
  • 4.25 –1.25 90 degrees

I wear monthly contact lenses. Which contact lenses should I order?

Reply: Diameter plays an important role with how the lens fits on the eye – a diameter smaller than the cornea can cause problems and a bigger one can make contact lens application more difficult for users with narrower eye slits. Lens curvature corresponds to the eye curvature and it should copy the cornea as closely as possible. A doctor should measure these parameters for you – if you buy lenses with the wrong curvature, the lens might not sit right on the eye. It could cause gritty feelings or be too loose. I would definitely recommend you visit a doctor who will measure all parameters, recommend a suitable contact lens type and give you a trial pair. Other parameters such as material, oxygen permeability and water content also matter.

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