an internal commlink is a headware. not vision enhancements. headware are small complex devices inserted into the head (not eyes) and typically constructed via less-invasive nanosurgery. items that have a capacity cost [in brackets] (like internal commlink do) may be installed in cyberlimbs (not cyberyes) instead, costing capacity rather than essence. cybereyes features capacity for vision enhancements (not headware that have a capacity rating). all vision enhancements are listed with capacity, availability and how much they cost to install as eyeware in cybereyes and they are are also listed with essence cost, availability and how much nuyen they cost to install as eyeware retinal modifications to natural eyes. this is raw. installing a commlink in your cybereyes is not.
You can use an internal commlink (as headware, attached to your brain - not your eyes) to give you a DNI without the need for a data jack or trodes. This mean you can use it for "super AR" without the need for other devices such as cyberyes, image link eyeware retinal modification to your natural eyes or image link in external imaging devices (such as goggles) as well as internal or external sound link, AR gloves etc. It already come modded with a sim module by default so you can also use it for cold-sim VR.