Table 5

 Mean and median DS before surgery, 6 months after surgery, and at follow up for subjects with and without an ocular co-morbidity

Before surgeryAfter 6 monthsAt follow up
No ocular co-morbidity (n = 275)Mean12.257.737.68
Median12.007.007.00
Ocular co-morbidity (n = 170)Mean14.3610.5911.39
Median14.009.009.00