Abstract:

Objective To study the 1-year postoperative visual acuity of idiopathic macular hole treated with 25G vitrectomy and its associated factors. Design Retrospective case series. Participants One hundred and three eyes of 100 idiopathic macular hole patients treated in Tianjin Eye Hospital from December 2015 to February 2017 were included. All the patients were treated with 25G vitrectomy combined with internal limiting membrane peeling or flap and followed for 1+ years. Patients who failed follow-up were excluded. Method Age, gender and course duration and axial length measured with IOL master were recorded preoperatively. The best-corrected visual acuity(BCVA) and coherent optical tomography(OCT) were performed before operation and at one-year follow-up. The patients were divided into group A and group B according to the postoperative visual acuity ≤ 0.3 or > 0.3 respectively, or group C and group D according to the vision increase after operation ≤ 0.6 or >0.6 respectively. The factors affecting postoperative visual acuity and visual acuity increase were analyzed. Main Outcome Measures Age, course of duration, AL, BCVA and macular hole diameter. Results There was statistically significant difference in preoperative visual acuity and minimum linear diameter of hole between group A and group B (both P<0.001), while there was no significant difference between the two groups in age, gender, axial length, refraction, duration of disease, and the stage (all P>0.05). There was statistically significant difference in preoperative visual acuity between group C and group D (P<0.001), but no significant difference in age, sex, axial length, refraction, duration of disease, minimum linear diameter of hole and the stage (all P>0.05). Conclusion The worse the visual acuity before surgery, the more the visual acuity increase after surgery. With the increase of the minimum linear diameter of macular hole, the postoperative visual acuity gets worse. But the postoperative visual acuity increasement was not related to minimum linear diameter of hole. (Ophthalmol CHN, 2019, 28: 350-353)

Key words: macular hole, vitrectomy, optical coherence tomography, vision