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Ignoring Astigmatism For Contact Lens
Sir, I have sphere of -8 and astigmatism of -1 with axis of 30 degree. Provided power is glass power. Can I ignore astigmatism for lens power and simply prefer sphere converted power for soft lens?
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Hi,
For Rigid GP CL, correction of Corneal Astigmatism is not necessary because its curve automatically corrects the corneal astigmatism. In case of Soft CLs, correction of Astigmatism may be recommended (Toric CLs), if the cylindrical error is more than 1/4 of spherical error. So, in your case, astigmatic error may be safely ignored.
And as the CL prescription is slightly different from Spectacle prescription, in your case -7.0 D soft CL may be good and acceptable.
In case of any inconvenience, contact your optician or Ophthalmologist.
Next Steps
Ignore Astigmatism and get Soft CLs with power adjusted.
Health Tips
Take all precautions as advised for CL.
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Hello
For this high sphere,minor cylindrical power can be ignored.
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.