Wound leakage and hypotony after 25-gauge sutureless vitrectomy: factors affecting postoperative intraocular pressure.
OBJECTIVE
To investigate the factors related to postoperative hypotony after 25-gauge sutureless vitrectomy.


METHODS
Of 109 consecutive eyes undergoing sutureless vitrectomy, 95 fluid-filled eyes were randomly assigned to three groups according to the order of infusion cannula removal. In group 1 (30 eyes), the infusion was removed first. In group 2 (32 eyes), the infusion was removed after another cannula. In group 3 (33 eyes), the infusion was removed last. Intraocular pressure (IOP) was measured on preoperative day 1 and postoperative days 1, 7, and 30.


RESULTS
Mean age was 58.9 +/- 11.6 years (range: 18 to 80 years). Among each factor (including order of infusion removal, age, sex, axial length, preoperative IOP, previous vitrectomy, indications for vitrectomy and lens status), only age was significantly correlated with IOP on postoperative day 1 (P = .019). In 13 eyes in which hypotony persisted through postoperative day 2 (IOP < or = 5 mm Hg), the age of the patients was significantly younger than those who did not experience persisting hypotony (P = .006).


CONCLUSIONS
Younger patients were more likely to experience early postoperative hypotony.
Byeon
Suk Ho
SH
Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, 134 Shinchon-Dong, Seodaemun-Gu, Seoul, Korea 120-752.
Lew
Young Ju
YJ
Kim
Min
M
Kwon
Oh W
OW
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007429:Intraocular Pressure; D008297:Male; D008866:Microsurgery / Q000379:methods; D008875:Middle Aged; D015814:Ocular Hypotension / Q000209:etiology*; D011183:Postoperative Complications; D012307:Risk Factors; D013529:Surgical Wound Dehiscence / Q000209:etiology*; D013536:Suture Techniques; D014821:Vitrectomy; D014945:Wound Healing