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    Anterior segment parameters of rabbits with rotating Scheimpflug camera
    (Wiley-Blackwell, 2015) Yuksel, Harun; Turkcu, Fatih M.; Ari, Seyhmus; Cinar, Yasin; Cingu, Abdullah K.; Sahin, Muhammed; Sahin, Alparslan
    BackgroundRabbit is one of the most commonly used experimental animals for corneal studies due to similarity of size to human cornea and ease of manipulation. In this study, we assessed anterior segment parameters of the healthy rabbit eyes with Pentacam HR (Oculus, Wetzlar, Germany). MethodsSix-month-old, approximately 2.5-3kg weighted, 30 female New Zealand rabbits were used in the study. Right eye of the each rabbit was imaged with Pentacam HR under intramuscular ketamine hydrochloride (Ketalar; Eczacibasi, Turkey) anesthesia (50mg/kg). After the imaging, the rabbits with blinking errors, which results in low-quality images, were excluded from the study. Keratometric readings, central corneal thickness (CCT), anterior chamber depth (ACD), and anterior and posterior elevation values, and lens density were noted. ResultsIn this study, the flattest and the steepest keratometric values were found as 43.341.86, 42.7 +/- 2.0, and 43.9 +/- 1.9diopters, respectively. The mean CCT and ACD of rabbits were found as 388 +/- 39m and 2.08 +/- 0.16mm, respectively. Mean of the anterior and posterior elevation at thinnest point was found as 1.29 +/- 4.28 and 3.91 +/- 6.17m, respectively. ConclusionsKeratometric readings and anterior and posterior elevation values of rabbits were similar to human; however, corneal thickness and anterior chamber depth (ACD) values were lower than humans.
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    Inner and outer segment junction (IS/OS line) integrity in ocular Behcet's disease
    (Consel Brasil Oftalmologia, 2014) Yuksel, Harun; Turkcu, Fatih M.; Sahin, Muhammed; Cinar, Yasin; Cingu, Abdullah K.; Ozkurt, Zeynep; Sahin, Alparslan
    Purpose: In this study, we examined the spectral domain optical coherence tomography (OCT) findings of ocular Behcet's disease (OB) in patients with inactive uveitis. Specifically, we analyzed the inner and outer segment junction (IS/OS line) integrity and the effect of disturbed IS/OS line integrity on visual acuity. Methods: Patient files and OCT images of OB patients who had been followed-up between January and June of the year 2013 at the Dicle University Eye Clinic were evaluated retrospectively. Sixty-six eyes of 39 patients were included the study. Results: OCT examination of the patients with inactive OB revealed that approximately 25% of the patients had disturbed IS/OS and external limiting membrane (EML) line integrity, lower visual acuity (VA), and lower macular thickness than others. Linear regression analysis revealed that macular thickness was not an independent variable for VA. In contrast, the IS/OS line integrity was an independent variable for VA in inactive OB patients. Conclusion: In this study, we showed that the IS/OS line integrity was an independent variable for VA in inactive OB patients. Further prospective studies are needed to evaluate the integrity of the IS/OS line in OB patients.
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    One year results of anti-VEGF treatment in pigment epithelial detachment secondary to macular degeneration
    (Consel Brasil Oftalmologia, 2013) Yuksel, Harun; Turkcu, Fatih M.; Sahin, Alparslan; Sahin, Muhammed; Cinar, Yasin; Cingu, Abdullah K.; Ari, Seyhmus
    Purpose: Pigment epithelial detachment (PED) may be seen in all stages of age-related macular degeneration (ARMD) and may lead to poor prognosis. In this study, we retrospectively examined the effect of anti-VEGF treatments in ARMD patients with vascularized PED. Methods: Medical records of 15 patients with PED secondary to ARMD were re--viewed retrospectively. The diagnosis of PED was made with fundoscopy, fundus fluorescein angiography and optical coherence tomography. Patients were treated with intravitreal ranibizumab or/and bevacizumab and followed up for a minimum of one year. PED height and best corrected visual acuity (BCVA) was obtained before the first intravitreal anti-VEGF injection and again at the 1st, 3rd, 6th and 12th month after the injection. Results: The mean baseline BCVA was 0.71 +/- 0.48 logarithm of the minimal angle of resolution (logMAR) unit and the mean baseline PED height was 361 +/- 153 mu. The mean injection count per eye was 3.9 +/- 2.9. There was a significant reduce in mean PED height (247 +/- 177 mu) also in 2 eyes PED completely resolved at the end of the follow up period. The mean BCVA at 12th month (0,69 +/- 0,37) were not different from the baseline record. Conclusions: This retrospective case series showed that intravitreal anti-VEGF therapy preserved vision and reduced PED height in PED patients in a one-year follow-up period.
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    Vision-related quality of life in patients after ocular penetrating injuries
    (Consel Brasil Oftalmologia, 2014) Yuksel, Harun; Turkcu, Fatih M.; Sahin, Muhammed; Cinar, Yasin; Cingu, Abdullah K.; Ozkurt, Zeynep; Bez, Yasin
    Purpose: To measure and investigate visual functioning and health-related quality of life (QOL) in patients after ocular penetrating injuries (OPI). Methods: Fifty-four adult patients with OPI and 26 healthy control subjects were enrolled in the study. The National Eye Institute Visual Functioning Questionnaire (NEI VFQ-25) and the 36-Item Short Form Health Survey (SF 36) were administered. Sociodemographic and clinical data also were collected. The primary outcome measures were comparisons and multivariate analysis among groups for the NEI VFQ-25 and SF 36 subscale scores. Results: All NEI VFQ-25 scores, except general health, were significantly lower in the OPI group than those in the control group. All SF 36 scores were significantly lower in the OPI group than in the control group. The NEI VFQ-25 subscale item scores showed no significant differences with respect to age, educational level, or visual acuity in the injured eye. The SF 36 subscale item scores revealed no significant differences according to gender or educational level. Conclusions: Patients with OPI have increased psychological symptoms and lower levels of QOL than healthy control subjects have. Deteriorations in QOL should be kept in mind when managing patients with OPI.