title: Vitrectomy in patients over 90 years of age.
abstract: OBJECTIVE
  The aim of this study was to evaluate vitrectomy procedures performed in patients over 90 years of age at the Dokkyo Medical University Koshigaya Hospital (Koshigaya, Japan).
  
  
  METHODS
  Vitrectomies were performed in nine eyes of nine patients who were over 90 years of age between May 2010 and March 2015. Factors such as the underlying vitreoretinal disease, preoperative and postoperative best-corrected visual acuity (BCVA), surgical time, postoperative body position, need for a second surgery, systemic disease, and intraoperative changes in systemic conditions have been evaluated.
  
  
  RESULTS
  The most common cause of the underlying vitreoretinal disease was vitreous hemorrhage derived from age-related macular degeneration and posterior dislocation of the lens secondary to a posterior capsular rupture (two cases each). The mean values for the logarithm of the minimum angle of resolution BCVA were 2.15 preoperatively and 1.46 postoperatively (P=0.020, Wilcoxon signed-rank test). The mean surgical time was 109 minutes. Prone position was needed in two cases, and no second surgeries were needed. The most common cause of systemic disease was hypertension, which was found in six cases. Transient hypertension was found in two cases during surgery, and these patients were treated using intravenous calcium blocker injections.
  
  
  CONCLUSIONS
  Patients over 90 years of age who underwent vitrectomy procedures did not have serious problems, except transient hypertension during surgery. The BCVA significantly improved. These results indicated that vitrectomies could be performed successfully in patients over 90 years of age.
authors: Department of Ophthalmology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan.
authors: Tetsuya
authors: T
authors: Muto
authors: Department of Ophthalmology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan.
authors: Tomoyuki
authors: T
authors: Ide
authors: Department of Ophthalmology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan.
authors: Makoto
authors: M
authors: Chikuda
authors: Department of Ophthalmology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan.
authors: Shigeki
authors: S
authors: Machida
keywords: transient hypertension; underlying vitreoretinal disease; vitrectomy