I have worn contact lenses for 17 years, my prescription -4.75.The staff at guildford were fantastic so calming and very proffesional, the treatment was over so quickly and straight away Ii could tell the difference, this procedure has changed my life, evenings out are so clear when driving and no dirty contacts to deal with or sore eyes the next morning..I would recommend this treatment my vision is now better than 20/20...one word to sum up would be FANTASTIC