I have -1.75 spherical and -0.5 cylindrical in both eyes. Do I need toric lens contact lenses or will normal ones do? - Quora
![Calculation of the total corneal astigmatism using the virtual cross cylinder method on the secondary principal plane of the cornea | Scientific Reports Calculation of the total corneal astigmatism using the virtual cross cylinder method on the secondary principal plane of the cornea | Scientific Reports](https://media.springernature.com/lw1200/springer-static/image/art%3A10.1038%2Fs41598-024-55154-x/MediaObjects/41598_2024_55154_Fig2_HTML.png)
Calculation of the total corneal astigmatism using the virtual cross cylinder method on the secondary principal plane of the cornea | Scientific Reports
![Professional Round Optical Cross Cylinder Lens With Long Handle 0.25 & 0.5 Optical Instrument Easy Operation 2-Piece Cross Cylinder Lens Professional Round Optical Cross Cylinder Lens With Long Handle 0.25 & 0.5 Optical Instrument Easy Operation 2-Piece Cross Cylinder Lens](https://m.media-amazon.com/images/I/41uqoNHftvL.jpg)