[Factors related to intraoperative retinal breaks in macular hole surgery].
OBJECTIVE
To evaluate the factors of intraoperative retinal breaks in macular hole surgery.


METHODS
This study included 558 eyes of 506 patients who underwent idiopathic macular hole surgery by one surgeon. Multiple regression was performed using the variables of gender, age, affected eye, lens status, stage, duration of symptoms, hole size, axial length, and lattice degeneration.


RESULTS
The rate of retinal breaks was higher in stage 3 (16.0%) than in stage 4 (8.2%) (p = 0.014). In eyes with lattice degeneration intraoperative retinal breaks occurred in about 40% of the cases. Major factors were as follows: lattice degeneration (r = 0.24, p < 0.0001) in all eyes, stage (r = 0.090, p = 0.048) in eyes without lattice degeneration, and gender (r = -0.18, p = 0.035) in eyes of stage 4 without lattice degeneration.


CONCLUSIONS
The factors of intraoperative retinal breaks in macular hole surgery were lattice degeneration in all eyes and stage 3 in eyes without lattice degeneration. The high incidence of intraoperative retinal breaks in stage 3 was mainly due to the occurrence of posterior vitreous detachment. Male gender was a significant factor associated with intraoperative retinal breaks.
Shinjo Ophthalmologic Institute, 899 Mego, Shimokitakata, Miyazaki 880-0035, Japan.
K
K
Kumagai
N
N
Ogino
S
S
Demizu
K
K
Atsumi
H
H
Kurihara
M
M
Iwaki
H
H
Ishigooka
N
N
Tachi
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D008875:Middle Aged; D012160:Retina / Q000473:pathology; D012167:Retinal Perforations / Q000209:etiology* / Q000601:surgery*; D012737:Sex Factors