* testing of eyes and the prescription of lenses every 2 years, frames and contact lenses every 4 years (but only in certain circumstances);
* ukuvavanyo lwamehlo kunye nokuxelelwa ngohlobo lwezilanga omawulusebenzise rhoqo emva kweminyaka emi-2, izakhelo zezilanga kunye nezilanga ezifakwa ngaphakathi emehlweni rhoqo kwiminyaka emine (kodwa kuphela kwimeko ezithile);