Lens holder
thingiverse
I ordered Holder VR lenses for glasses to correct the initial size issue. Since they had to be resized anyway, I simply swapped them with this pair instead: https://ru.aliexpress.com/item/QTY-2PCS-Google-Cardboard-3D-Virtual-Reality-VR-Glasses-BiConvex-Lenses-Only-25mm-x-45mm/32420179247.html. This new lens works perfectly for the glasses I was working on, which is available at https://www.thingiverse.com/thing:322051. If anyone needs the original design to resize it correctly, I've included a link to the file attached below.
With this file you will be able to print Lens holder with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Lens holder.