From M4 west you can either come off at the junction for A4232 or come off at the A470 junction. From M4 east, exit at Cardiff Gate. Then follow signs for the city centre. Optical Express is next to the large Primark on Queen Street.
The closest car parks are on Greyfriars Road or Capitol Car Park, then head for Queen Street and it is a two minute walk away.
Train: Queen Street Station is the nearest to the store, only a two minute walk. However as most train lines do not stop at this station, Cardiff Central may be a better option. This is 10 minute walk from the clinic.
Bus: Buses are frequent to Cardiff Central but some services run along Greyfriars Road or Dumfries Place.