I-DROP PUR GEL is very popular now as many people are staring at computer screens now more than ever.  When you stare at a screen your blinking decreases causing the eyes to become dry.  I-DROP PUR GEL is preservative free.  Some preservatives can cause allergic reactions further increasing the sensation of dryness.  For the ultimate dry eye relief, I-DROP PUR GEL is available at Matador Eyeworks.