Magnitude of refractive power that can be corrected
Error | Myopia | Hyperopia | Astigmatism |
Range of correction | -0.50 D to -12 D | Upto +6.00 D | Upto 6 D |
Procedure | PRK | LASIK |
Central corneal thickness | 470 | 500 |
Range of correction | Upto -6.00 D | Upto -12 D |