Abstract
Purpose: :
To determine whether the preoperative HbA1c level and renal function can predict the postoperative visual acuity after vitreous surgery in eyes with diabetic maculopathy without a posterior vitreous detachment (PVD).
Methods: :
We reviewed the medical records of 118 eyes of 77 cases with diabetic maculopathy who underwent vitreous surgery from September 1999 to April 2004 at Juntendo University Urayasu Hospital. Thirty–eight eyes of 27 patients (19 men and 8 women, mean age: 58.0 years) were diagnosed with diffuse macular edema without any sign of PVD before surgery and were followed more than 12 months. Visual acuity was evaluated before and at 1, 2, 3, 6, and 12 months after surgery. The correlation between HbA1c level and postoperative visual acuity and between renal function and postoperative visual acuity were analyzed.
Results: :
The visual acuity at 12 months after surgery was significantly better than that before surgery . The postoperative visual acuity in patients with normal (<7%) HbA1c levels was not significantly different from those with elevated (>7%) HbA1c levels. The improvement of visual acuity was not significantly better in patients with good renal function than with bad renal function.
Conclusions: :
Vitreous surgery is effective for treating diabetic macular edema irrespective of the preoperative HbA1c level and renal function.
Keywords: diabetic retinopathy • macula/fovea • vitreoretinal surgery