The special kind of lenses that makes your eyes look larger is the virus contact lenses. But would you be able to differentiate between a pair of normal contact lens and a pair of Circle Lens while purchasing one for yourself? If no, then go through the following guidelines.
• Normal and Circle Lenses have the same diameter.
• The iris becomes larger and prominent due to the presence of a large ring at the centre of it.
• Some regions are slightly tinted to cover the iris.
It seems that they have no obvious difference when seen from the outside.