How long does it take to repair a “Tear in the Retina”? – Eye Care Help

and what is the most common procedure

My son was told by his optician to see a specialist cause he might have a hole or tear….. please respond!
his appointment was 2 weeks ago and the optician made the appointment with the specialist for next week! if it was serious dont u think he would have made the appointment the next day? now im worried