Osman Ahmet Polat

Effects of chronic smoking on color vision in young subjects

AIM To evaluate the effects of chronic smoking on color vision in young subjects. METHODS This study included 91 smokers and 88 non-smokers (a total of 179 volunteers) without any ophthalmologic and systemical disorders. The subjects were between 18-40 years of age with a best corrected visual acuity (BCVA) of 20/20, normal anterior and posterior segment examinations and normal intraocular pressure. The color vision of the subjects were evaluated with Farnsworth-Munsell 100 Hue test (FMHT). The total error scores and axis calculation were performed for each subject and the results correlated. RESULTS Mean age and the standard deviation was 28±5y in the smokers group, and 26.7±5.5y in the control group (P=0.101). Sex distribution was similar in the two groups (P=0.365). There was no significant correlation between age and FMHT total error scores (P=0.069). Median of FMHT total error scores of smokers and non-smokers were 65 and 50.50, respectively. FMHT total error scores was found significantly higher in smokers than non-smokers (P=0.004). There was no statisticaly significant difference between smoker and non-smoker groups with respect to axis ratio calculation (P=0.611). There was no significant correlation with FMHT total error scores with neither smoking duration nor number of cigarettes smoked per day (P=0.405, P=0.454, respectively). CONCLUSION This study suggested that chronic smoking affects the color vision of young smokers but this may not be sector selective.

ÖN KAMARADA PERFLORODEKALİN BAKİYESİ: İKİ OLGU SUNUMU

Perflorodekalin sivisi vitreoretinal cerrahide gecici goz ici tamponati olarak kullanilir. Bu calismada sunulan 65 ve 71 yasindaki iki olguya, regmatojen retina dekolmani tanisi ile pars plana vitrektomi ameliyati yapilmis ve her iki hastada da perflorodekalin sivisi gecici goz ici tamponati olarak kullanilmistir. Her iki olgununda ameliyat oncesinde psodofakik oldugu gorulmus ve arka kapsulun saglam oldugu saptanmistir. Ilk olguda birinci hafta da, ikinci olguda birinci ayda on kamarada perflorodekalin kalintisi saptanmistir. Ilk olguda ameliyattan 2 hafta sonra, ikinci olguda ise 7 ay sonra on kamara lavaji yapilarak perflorodekalin bakiyesi uzaklastirilmistir. Iki olguda da on kamara lavaji oncesi ve sonrasinda kornea saydam olarak degerlendirilmis ve herhangi bir korneal toksisite bulgusu saptanmamistir.

Tedaviye dirençli glokom olgularında seton implantasyonu sonuçlarımız

Aim. To evaluate our glaucoma tube implantation results for glaucoma cases that cannot be controlled with medication therapy. Method. The records of 31 cases whose medical records could be reached and and who could come to regular follow up visits among 123 patients that applied to our clinic between January 2004-January 2011 with refractory glaucoma for medical therapy were evaluated retrospectively. Results. Glaucoma tube implantation was performed with diagnosis of neovascular glaucoma in 24 cases, uveitic glaucoma in 4 cases, aphakic glaucoma in 2 cases, pseudoexfoliation glaucoma in 1 case. Ahmed valve for 25 cases, Molteno for 3 cases, Baerveldt for 2 cases, keiki mehta for one case were implanted. Preoperative intraocular pressure median value was 40 mmHg (23-66).The median value of follow up duration was found to be 10 months (3-78). The median value of intraocular pressures for last follow up visit was 15.5 mmHg (6-67). As postoperative complications, chronic hyphema in 3 cases, hypotony and hyphema in 1 case, hypotony and following phthisis bulbi in 1 case, painful eye and following evisceration in 1 case, epiretinal membrane in 1 case, endothelial failure in 1 case were observed. Conclusion. Glaucoma tube implantation is efficient alternative treatment method for refractory.