The use of fibrin glue in pterygium surgery with conjunctival autografting significantly reduces surgery time, improves postoperative patient comfort and results in a lower recurrence rate compared with suturing.

Cigarette smoking causes a significant decrease in choroidal thickness following smoking. Fourier domain optical coherence tomography can effectively demonstrate choroidal thickness.

Aims:To investigate the effect of surgery type on the postoperative astigmatism in pterygium surgery.Settings and Design:Retrospective comparative clinical trial.Materials and Methods:Data of 240 eyes that underwent pterygium excision were investigated. Following removal of the pterygium, patients underwent 5 different types of surgeries: Conjunctival autograft with sutures (CAG-s) or fibrin glue (CAG-g), conjunctival rotational flap (CRF), or amniotic membrane transplantation with either suture (AMT-s) or with glue (AMT-g). The preoperative and postoperative keratometric measurements, evaluated using an automated keratorefractometer, were noted.Statistical Analysis:The overall changes in BCVA and astigmatic degree were evaluated using Wilcoxon signed rank test. The difference in astigmatic values between groups was calculated using one way analysis of variance (ANOVA).Results:The most commonly performed procedure was CAG-s (N = 115), followed by CAG-g (N = 53), CRF (N = 47), AMT-s (N = 15), and AMT-g (N = 10). Following surgery, astigmatic values decreased from 3.47 ± 2.50 D to 1.29 ± 1.07 D (P < 0.001, paired t test). The changes in astigmatism was significantly related to the preoperative size of the pterygium (ρ = 3.464, P = 0.005). The postoperative astigmatism correlated with preoperative astigmatism (ρ = 0.351, P < 0.001, Spearman correlation analysis). The changes in astigmatic values was not related to the method of surgery (P = 0.055, ANOVA).Conclusion:Pterygium results in high corneal astigmatism, which decreases to an acceptable level following excision. According to our study, the type of grafting as CAG, CRF or AMT or the use of suture or glue to fixate the graft does not have a significant effect on the change in astigmatism degree.

Purpose We evaluated corneal endothelial cell (EC) damage after vitreoretinal surgery and compared the results using different tamponades. Materials and methods This prospective controlled study included 45 eyes of 45 patients (24 females, 21 males) who underwent pars plana vitrectomy with gas (sulphur hexafluoride, SF 6 , 20%) or silicone oil (SO) tamponade. Patients were assigned to one of the three groups: group 1 (phakic, 20% SF 6 gas), group 2 (pseudophakic, 20% SF 6 gas), and group 3 (phakic, SO). Mean endothelial cell density (MCD), mean cell area (MCA), coefficient of variation in cell size (CV), and percentage of hexagonal cells (HC) values were measured using a non-contact specular microscope (SP-2000P; Topcon, Japan) at baseline and at 3 months after surgery. The fellow eye of each patient was used as a control. Results Group 2, which had the lowest baseline MCD and MCA values, was found to be different than groups 1 and 3 (P = 0.028 and 0.022, respectively). At 3 months postoperatively, all groups showed significantly lower MCD, HC and CV values than at baseline (all Po0.05). The mean changes in MCD at 3 months after surgery were 3.8 ± 2.8% (mean ± SD), 8.0 ± 7.5%, and 4.6 ± 5.4% in groups 1-3, respectively. The mean MCD changes in the fellow eyes were 0.31 ± 1.41% in group 1, − 0.63 ± 1.90% in group 2, and 0.14 ± 0.52 in group 3 at 3 months postoperatively (P40.05 for all). Conclusions Our findings revealed that corneal EC damage may occur after vitreoretinal surgery with gas or SO tamponade. Eyes that had undergone previous cataract surgery were more vulnerable to EC loss than phakic eyes, supporting the protective effect of an intact lens.

Best-corrected visual acuity improved up to 4 months in around half of the eyes. Eyes that benefited the most were pseudophakic, steroid nonresponsive, with large initial central macular thickness, and profuse fluorescein dye leakage.