title: Passive removal of silicone oil through 23 gauge transconjunctival sutureless vitrectomy system.
abstract: OBJECTIVE
  To study the outcomes of passive removal of silicone oil by 23 Gauge Transconjunctival Sutureless Vitrectomy System.
  
  
  METHODS
  This prospective, consecutive case series study was conducted at Ophthalmology Department Unit I, Dow University of Health Sciences, Civil Hospital Karachi from January 2011 to December 2014. Only psuedophakic eyes with silicone oil temponade were selected. Main outcome measures were intra ocular pressure, time taken for removal of silicone oil, per operative and post operative complications. Pre and post operative IOP was compared by using two-tailed paired t-test and mean values with standard deviation were computed using difference of 95% confidence interval. Chi square test was applied for correlation of different variables. P-value of less than 0.05 was considered statistically significant.
  
  
  RESULTS
  Out of 79 patients who underwent passive ROSO, 38 (48.1%) were males. Mean age of patients was 47.5±7.1 (sd) years. Mean time taken for passive ROSO was 7.31±2.41 (sd) minutes. Pre and post operative intra ocular pressure shows statistically significant (p=0.000) decrease in IOP. Retinal redetachment found in 13 (16.5%) cases during follow up period.
  
  
  CONCLUSIONS
  Passive removal of silicone oil with 23 G suture less vitrectomy system is safe and effective in terms of less per operative and post operative complications. In this simple technique, there is less tissue trauma and little time consumed so it provides more comfort to patients and surgeons as well.
authors.affiliation: Nisar Ahmed Siyal, Assistant Professor, Ophthalmology Unit I, Dow University of Health Sciences & Civil Hospital, Karachi, Pakistan.
authors.forename: Nisar Ahmed
authors.initials: NA
authors.lastname: Siyal
authors.affiliation: Lakhani Das Hargun, Assistant Professor, Ophthalmology Unit I, Dow University of Health Sciences & Civil Hospital, Karachi, Pakistan.
authors.forename: Lakhani Das
authors.initials: LD
authors.lastname: Hargun
authors.affiliation: Prof. Shahid Wahab, Professor, Ophthalmology Unit I, Dow University of Health Sciences & Civil Hospital, Karachi, Pakistan.
authors.forename: Shahid
authors.initials: S
authors.lastname: Wahab
keywords: Passive removal of silicone oil; Suture less vitrectomy