Person: KIRIK, FURKAN
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Publication Metadata only Refractive precision in uncomplicated eyes with pseudoexfoliation: three-piece versus one-piece intraocular lens implantation(2021-01-01T00:00:00Z) Onur, Ismail Umut; Kirik, FURKAN; Yigit, Fadime Ulviye; Vural, Asli Deger; Cavusoglu, Ercan; Evcimen, Yusuf; KIRIK, FURKANPurpose: To evaluate the refractive precision of three-piece versus one-piece intraocular lenses (IOLs) in eyes with pseudoexfoliation (PXF) and changes in anterior chamber depth (ACD) following cataract surgery.Publication Metadata only Regression of Serous Macular Detachment After Intravitreal Dexamethasone Implant in Patients with Diabetic Macular Edema.(2019-10-24) Ozdemir, MH; Ekinci, C; Kirik, F; Koytak, A; ÖZDEMİR, MEHMET HAKAN; ELBAY, AHMET; KIRIK, FURKAN; EKİNCİ, CANSU; KOYTAK, İBRAHİM ARİFPublication Metadata only Acute Phototoxic Retinopathy due to Infrared Heater(2020-09-01T00:00:00Z) Kırık, Furkan; Çevik, Neslihan; Bayraktar, Havvanur; Özdemir, Mehmet Hakan; KIRIK, FURKAN; BAYRAKTAR, HAVVANUR; ÖZDEMİR, MEHMET HAKANPublication Metadata only Effects of 1,25 Dihydroxyvitamin D3 on Human Retinal Pigment Epithelial Cell Lines.(2021-05-22T00:00:00Z) Ekinci, Cansu; Guler, Eray Metin; Kocyigit, ABDÜRRAHİM; Ozdemir, Hakan; EKİNCİ, CANSU; KOÇYİĞİT, ABDÜRRAHİM; KIRIK, FURKANPublication Metadata only The relationship between preoperative anterior chamber parameters and postoperative refractive error in cataract surgery(2020-09-01T00:00:00Z) Koytak, İbrahim Arif; Kırık, Furkan; Özdemir, Mehmet Hakan; KIRIK, FURKAN; KOYTAK, İBRAHİM ARİF; ÖZDEMİR, MEHMET HAKANPurpose: Postoperative refraction has become important with improvements in cataract surgery. In this study, our aim was to investigate the effects of phacoemulsifi cation-intraocular lens (P-IOL) implantation on anterior chamber angle (ACA), anterior chamber volume (ACV), anterior chamber depth (ACD), and to assess relationship between these parameters and axial length (AL) and postoperative refractive error. Materials and Methods: We retrospectively reviewed data from 231 patients who underwent P-IOL implantation between January 2012 and June 2014. Scheimpfl ug imaging system was used for the determination of ACA, ACV and ACD values at preoperative and postoperative month 3. Partial coherence laser interferometry was used for preoperative AL, target postoperative refractive error and IOL power calculated by SRK-T formula. Spherical equivalent (SE=spherical error plus cylindrical error /2) at postoperative month 3 was recorded. Postoperative refractive error was calculated as mean error (ME=postoperative refraction-target refraction) and mean absolute error (MAE=absolute of ME). Data obtained at preoperative period and postoperative month 3 were compared. Results: Preoperative ACA, ACV, ACD were 30,2 ±12,1°, 130,7 ±41,2 mm³, 2,6 ±0,4 mm while postoperative ACA, ACV, ACD were 42,7 ±5,8°, 172,1 ±28,2 mm³, 4,1 ±0,7 mm respectively. Anterior chamber parameters were increased after P-IOL implantation, as all differences being statistically signifi cant (p=0.001). No signifi cant correlation was found between ME and ACA, ACV, ACD, AL. Again, no signifi cant correlation was found between MAE and ACA, ACV, ACD. Only a weak correlation was found between MAE and AL. Conclusion: Anterior chamber parameters measurements after P-IOL are signifi cantly increased compared to preoperative values. There was no signifi cant correlation between preoperative ACA, ACV, ACD and AL, and postoperative refractive error.Publication Metadata only Correlation with Schirmer test and break up time of tear osmolarity measurement in dry eye syndrome patients Kuru göz sendromlu hastalarda gözyaşi osmolarite ölçümünün schirmer testi ve gözyaşi kirilma zamani ile ilişkisi(2013-01-01T00:00:00Z) Yiǧit, Ulviye; Kirik, FURKAN; Evcimen, Yusuf; Aǧaçhan, Ahmet; KIRIK, FURKANObjective: To evaluate the correlation with Schirmer Test and Break up Time (BUT) of tear osmolarity measurement in dry eyes syndrome (DES) patients. Material and Methods: New diagnosed 30 dry eye patients and 30 healthy voluntary persons of similar age and gender included prospectively in this study. In addition to the full ophthalmic examination, Schirmer Test and BUT test were performed to all participants. Tear osmolarity measurements have been done after pre-examination but in different day, with TearLab Osmolarity System (TearLab Corporation, San Diego, CA, USA). The results have been evaluated statistically. Results: No statistically significant difference was found between mean age, gender of DES and control groups (p<0.05). The mean measurement of Schirmer Test and BUT of DES group were statistically significantly lower than control group (p=0.0001). The mean measurement of tear osmolarity were statistically significantly higher than control group (p=0.0001). When the results were evaluated in DES group, Schirmer test value were found positively correlated with BUT value (r=0.626, p=0.0001). Between Schirmer test value and the measurement of tear osmolarity, there was a negative correlation (r=-0.414 p=0.008). Negative correlation was also observed between BUT and the measurement of tear osmolarity (r=-0.378 p=0.015). Conclusion: It has been concluded that there is no difference among tear osmolarity, Shirmer and BUT tests in diagnosis of DES.Publication Metadata only Regional analysis of segmented-macular structure in patients with myopic anisometropia(2021-06-01T00:00:00Z) KIRIK, FURKAN; EKİNCİ, CANSU; AKBULUT, ERSİN; BAYRAKTAR, HAVVANUR; Ozdemir, Hakan; KIRIK, FURKAN; EKİNCİ, CANSU; AKBULUT, ERSİN; BAYRAKTAR, HAVVANUR; ÖZDEMİR, MEHMET HAKANPurpose To compare intraretinal layers between the eyes in patients with myopic anisometropia, and evaluate the relationship between the layers with spherical equivalent (SE) and axial length (AL). Methods In this retrospective study, the more myopic (MM) and fellow (F) eyes of 41 patients with myopic anisometropia, and 38 emmetropic (+/- 0.50 diopter) control (C) eyes were inclueded. Intraretinal layer segmentation was performed by optical coherence tomography. Global volumes of retinal layers and their thicknesses in nine macular regions were compared. Correlation analysis was used to determine the relationship with SE and AL in each layer. Results Total retinal, ganglion cell (GCL), inner nuclear (INL), and outer plexiform (OPL) layer volumes in MM eyes were less than in C eyes, while INL and OPL were less than in F eyes. There was no difference in the fovea, except for the retinal pigment epithelium. In MM eyes, only INL and OPL were thin in at least one perifoveal and parafoveal quadrant compared to F eyes. Only INL and OPL thicknesses were significantly correlated with both SE and AL in all perifoveal quadrants. In contrast to the thinning found in MM eyes, the only layer in which thickening was detected to compare to C eye was nerve fiber layer (NFL), which correlated positively with SE and negatively with AL. Conclusion While the fovea is less affected by myopia, thinning becomes remarkable in the perifoveal quadrants. Despite thinning in many layers, especially INL and OPL, NFL thickening may be seen due to myopia.Publication Metadata only Cilioretinal artery occlusion and anterior ischaemic optic neuropathy due to periocular botulinum toxin a injection: A case report(2020-08-01T00:00:00Z) Kirik, Mehtap Ozkahraman; Arslan, Enver; KIRIK, FURKAN; KIRIK, FURKANPublication Metadata only Daytime variations of tear osmolarity measurement in dry eye patients Kuru göz hastalari{dotless}nda gözyaşi{dotless} osmolarite ölçümünün gün İçi deǧişiklikleri(2013-01-01T00:00:00Z) Yiǧit, Ulviye; Evcimen, Yusuf; Kirik, FURKAN; Aǧaçhan, Ahmet; KIRIK, FURKANPurpose: We have targeted primarily to show the variations of tear osmolarity during the daytime period in subjects with dry eyes and non-dry eyes and, secondarily, to evaluate the relationship of these variations with Schirmer-s test and break-up time (BUT). Material and Method: Twenty newly diagnosed dry eye patients and 20 healthy voluntary subjects with similar age and gender were included in this prospective study. In addition to the full ophthalmic examination, Schirmer-s test and BUT test were applied to all participants. Tear osmolarity measurements were done after pre-examination but in different day. The measurements were registered with TearLab Osmolarity System (TearLab Corporation, San Diego, CA, USA) every 3 hours within 8:00 AM and 5:00 PM. The results were evaluated statistically. Results: No statistically significant difference was found between the mean age and gender of dry eye syndrome (DES) and control groups (p>0.05). The mean measurements of Schirmer-s test and BUT in the DES group were statistically significantly lower than those in the control group (p=0.0001). The mean measurements of tear osmolarity at 8:00 AM, 11:00 AM, 2:00 PM, and 5:00 PM in the DES group were statistically significantly higher than those in the control group (p=0.001, p=0.0001). No statistically significant difference in tear osmolarity at 8:00 AM, 11: 00 AM, 2:00 PM, and 5:00 PM was found between the groups, and within DES and control groups (p>0.05). Discussion: We did not determine significant change in daytime variations of the tear osmolarity in dry eye patients and healthy subjects. As a secondary result, we can conclude that there is no difference among tear osmolarity, Shirmer-s and BUT tests in the diagnosis of DES.Publication Metadata only Comparison of Two Laser Capsulotomy Techniques: Cruciate Versus Circular(2014-05-01T00:00:00Z) Kara, Necip; Evcimen, Yusuf; Kirik, FURKAN; Agachan, Ahmet; Yigit, Fadime Ulviye; KIRIK, FURKANPurpose: To compare the safety and efficacy of two Nd: YAG laser capsulotomy techniques. Methods: In this prospective comparative interventional case series, 60 eyes of 57 patients with posterior capsular opacification were enrolled. Thirty eyes were selected to undergo a cruciate capsulotomy (Cross group) and the other 30 eyes were selected to undergo a circular capsulotomy (Circular group). Main outcome measures were best-corrected visual acuity (BCVA), intraocular pressure (IOP), amount of energy used, mean macular thickness (MMT), and floater symptoms. Results: The amount of energy used was significantly higher in the Circular group than in the Cross group (p 0.05). The number of patients with floater symptoms was significantly higher in the Circular group than in the Cross group at one week and one month (p < 0.05). Conclusion: Both the cross-like and circular Nd:YAG laser capsulotomy techniques induce similar visual and IOP changes. The circular technique is associated with a higher amount of energy used, more floater symptoms, and has a greater effect on macular thickness at one day after laser capsulotomy.