Table 1 Incidence of chronic dry eye symptoms after refractive surgery
Study | Procedure | N | Design | Definition | Incidence |
|---|---|---|---|---|---|
Denoyer 2014 [18] | LASIK | 60 | Prospective series | Use of eye drops at 6 months | 43% |
De Paiva 2006 [19] | LASIK | 35 | Prospective randomized (nasal vs. superior hinge) | Fluorescein staining score of 3 or more at 6 months | 36.4% (overall) |
Shoja 2007 [14] | LASIK | 95 | Retrospective series | Subjective symptoms at 6 months | 20% |
Donnenfeld 2003 [20] | LASIK | 52 | Prospective randomized (nasal vs. superior hinge) | Patients reporting eyes drier than before LASIK at 6 months | 31% (overall) |
Tuisku 2007 [13] | LASIK | 20 cases | Retrospective case-control | Subjective symptoms at 2 - 5 years | 55% |
Hovanesian 2001 [16] | LASIK and PRK | 781 | Mailed questionnaire | Subjective symptoms at 6 months or more | 44% |