Colored contact lenses come with and without power. If you wear spectacles for vision correction, looking for contacts with power would be the ideal choice.
These are use and throw lenses that, depending on the type of lenses, can either be used for just a day or for a week or two before being disposed of for a new one.
This means that there are people with incorrect vision and at present, they need spectacles for all of them. Spectacles as well as fall and break easily and many other problems faced by people with them.
O-Lens the best seller of contact lenses exclusively on online. This is the leading brand of South Korea for the contact lenses which is now set up in India.
In the era of phones, computer and other electronic devices there are rarely people with 20/20 vision which means there are people with incorrect vision and there is a need for spectacles for all of them.