Table 2

Preoperative characteristics of patients with RRD and surgical procedures after propensity score matching among primary success cases

Gas*
(n=40)
Silicone oil*
(n=40)
P value§
GenderMale30 (75.0%)30 (75.0%)1.000
Age (years)59.58±16.4159.33±15.910.802
History typeNone25 (62.5%)29 (72.5%)0.728
Vitrectomy excluding retinal detachment surgery1 (2.5%)2 (2.5%)
Intraocular surgery excluding vitrectomy13 (32.5%)10 (25.0%)
Photocoagulation for retinal break1 (2.5%)0 (0.0%)
RRD typeRelated to posterior vitreous detachment24 (60.0%)24 (60.0%)0.704
Related to atrophic hole2 (5.0%)3 (7.5%)
Related to atopic dermatitis2 (5.0%)4 (10.0%)
Retinal detachment with macular hole related to myopia4 (10.0%)2 (5.0%)
Retinal detachment with macular hole not related to myopia0 (0.0%)0 (0.0%)
Related to retinal break at or near vitreous base0 (0.0%)0 (0.0%)
Related to intraocular surgery6 (14.0%)2 (5.0%)
Hereditary0 (0.0%)1 (2.5%)
Traumatic3 (7.5%)4 (10.0%)
Lens statusPhakia11 (27.5%)10 (25.0%)1.000
Aphakia0 (0.0%)0 (0.0%)
Pseudophakia29 (72.5%)30 (75.0%)
Onset to surgery (days)25.07±38.0027.38±46.530.798
Type of surgeryWith scleral buckling7 (17.5%)12 (30.0%)0.293
Combined cataract surgery+22 (55.0%)23 (57.5%)1.000
*If the variables are continuous, we present the means±SD deviation. And if those are categorical, we present the number and the proportion.
§P values of continuous variables are calculated by Mann Whitney U test and those of categorical variables are calculated by χ2 test if the minimum number is >5 and Fisher’s exact test if the minimum number is ≤5. We determine that if p values are <0.05, the values are statistically significant.
  • RRD, rhegmatogenous retinal detachment.