How effective is Accutane on pores size and skin texture post Accutane?

I have mild breakouts and went for a deep cleansing facial with a LED light for my pimples. 3 months later my pores opened up, and i have developed sun spots. Also my skin is very oily now, which was never a problem. My dermatologist suggested i go on accutane as it will reduce my oily skin and help for skin texture, as well as for any scarring. Will accutane improve my skin texture and make my pores look smaller post accutane?