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Öğe Coats BenzeriRetinitis Pigmentoza(Retina-Vitreus, 2015) Demirel, Ersin Ersan; Dikci, Seyhan; Genç, Oğuzhan; Yılmaz, TurgutÖz:Retinitis pigmentoza (RP); dünya genelinde en yaygın görülen, fotoreseptör hücrelerinin ilerleyici kaybı ve retinal pigment depositleriyle karakterize kalıtsal bir grup retinal dejeneratif hastalıktır. İzole olarak da görülebilen RP birçok sendrom ile birlikte bulunabilir. RP'nin rod-kon distrofisi olarak bilinen tipik formunun yanında atipik formları da mevcuttur. Eksudatif retina dekolmanı ve kistoid maküla ödemi gibi patolojileri bulunduran Coats benzeri retinitis pigmentosa atipik retinitis pigmentosa çeşitlerinden biridir. Bu çalışmada kliniğimize yaklaşık bir yıldır karanlıkta görme güçlüğü, son üç aydır da sağ gözde gün ışığında da devam eden görme azlığı şikayeti ile başvuran ve yapılan göz muayenesi sonucunda Coats benzeri RP tanısı konulan 31 yaşındaki erkek hasta sunuldu. Nadir bir RP türü olan Coats benzeri RP hakkında son yayınlar ışığında küçük bir derleme yapmayı amaçladıkÖğe Coats BenzeriRetinitisPigmentoza(2015) Demirel, Ersin Ersan; Dikçi, Seyhan; Genç, Oğuzhan; Yılmaz, TurgutRetinitis pigmentoza (RP); dünya genelinde en yaygın görülen, fotoreseptör hücrelerinin ilerleyici kaybı ve retinal pigment depositleriyle karakterize kalıtsal bir grup retinal dejeneratif hastalıktır. İzole olarak da görülebilen RP birçok sendrom ile birlikte bulunabilir. RP'nin rod-kon distrofisi olarak bilinen tipik formunun yanında atipik formları da mevcuttur. Eksudatif retina dekolmanı ve kistoid maküla ödemi gibi patolojileri bulunduran Coats benzeri retinitis pigmentosa atipik retinitis pigmentosa çeşitlerinden biridir. Bu çalışmada kliniğimize yaklaşık bir yıldır karanlıkta görme güçlüğü, son üç aydır da sağ gözde gün ışığında da devam eden görme azlığı şikayeti ile başvuran ve yapılan göz muayenesi sonucunda Coats benzeri RP tanısı konulan 31 yaşındaki erkek hasta sunuldu. Nadir bir RP türü olan Coats benzeri RP hakkında son yayınlar ışığında küçük bir derleme yapmayı amaçladıkÖğe Estimation of angle kappa and pupil barycentre configuration in myopic tilted disc syndrome(Wiley, 2020) Cankaya, Cem; Ozsoy, Ercan; Demirel, Ersin Ersan; Polat, Nihat; Gunduz, AbuzerBackground To evaluate the angle kappa and pupil barycentre configuration in patients with myopic tilted disc syndrome (TDS). Methods Thirty-five eyes of 35 patients with TDS were included in the study. Thirty-five eyes of 35 age- and sex-matched healthy subjects were enrolled in the control group. All measurements were performed with the Lenstar LS 900. Angle kappa was calculated according to Pythagorean theorem using the x and y co-ordinates of the pupil centre. Pupil dx and pupil dy values (pupil dx: x co-ordinate of pupil centre relative to corneal apex, pupil dy: y co-ordinate of pupil centre relative to corneal apex) were used to evaluate the pupil barycentre configuration. Central corneal thickness, white to white (cornea diameter), pupil diameter, anterior chamber depth, lens thickness, and axial length were also measured. Results The calculated mean angle kappa distance was 0.27 +/- 0.15 mm in the TDS group and 0.29 +/- 0.23 mm in the control group (p = 0.42). The mean pupil dx was -0.01 +/- 0.24 mm in the TDS group and -0.17 +/- 0.14 mm in the control group (p = 0.006). The mean pupil dy was -0.02 +/- 0.13 mm in the TDS group and -0.05 +/- 0.22 mm in the control group (p = 0.65). Conclusions The pupil barycentre in TDS cases was statistically significantly closer to the corneal vertex on the horizontal plane compared to the control group. However, there was no statistically significant differences in terms of angle kappa and pupil dy values between the groups. According to our results, refractive surgery can be performed safely with respect to complications related to decentration of ablation zone and decentration of multifocal intraocular lenses in these groups of patients.Öğe Evaluation of Anterior Segment's Structures in Tilted Disc Syndrome(Hindawi Ltd, 2016) Ozsoy, Ercan; Gunduz, Abuzer; Demirel, Ersin Ersan; Cumurcu, TongabayPurpose. To evaluate anterior segment's structures by Pentacam in patients with tilted disc syndrome (TDS). Methods. Group 1 included forty-six eyes of forty-six patients who have the TDS. Group 2 including forty-six eyes of forty-six cases was the control group which was equal to the study group in age, gender, and refraction. A complete ophthalmic examination was performed in both groups. All cases were evaluated by Pentacam. The axial length (AL) of eyes was measured by ultrasound. Quantitative data obtained from these measurements were compared between two groups. Results. There was no statistically significant difference for age, gender, axial length, and spherical equivalent measurements between two groups (p = 0.625, p = 0.830, p = 0.234, and p = 0.850). There was a statistically significant difference for central corneal thickness (CCT), corneal volume (CV), anterior chamber angle (ACA), and pupil size measurements between two groups (p = 0.001, p = 0.0001, p = 0.003, and p = 0.001). Also, there was no statistically significant difference for anterior chamber depth (ACD), anterior chamber volume (ACV), and lens thickness (LT) measurements between two groups (p = 0.130, p = 0.910, and p = 0.057). Conclusion. We determined that CCT was thinner, CV was less, and ACA was narrower in patients with TDS. There are some changes in the anterior segment of the eyes with tilted disc.Öğe The ocular surface in the Behcet's disease patient(Canadian Ophthal Soc, 2012) Gunduz, Abuzer; Cumurcu, Tongabay; Demirel, Ersin Ersan; Akpolat, Nusret; Karincaoglu, YeldaObjective: Evaluation of the morphological changes in conjunctival surface epithelial cells with impression cytology in Behget's disease patients. Patients: A total 01 89 eyes of 89 subjects were included. These consisted of 56 patients with inactive Behget's disease (group 1) and a control group of 33 age- and sex-matched subjects (group 2). Methods: Schirmer-I and break-up time (BUT) tests were used to evaluate the tear film of the subjects. Impression cytology was used to evaluate morphological changes of the conjunctival surface epithelial cells. The results of the 2 groups were compared. Results: The mean Schirmer-I test result was 8.59 +/- 4.83 in group 1 and 14.52 +/- 6.38 in group 2. There was a statistically significant difference between the 2 groups for this test (p = 0.001). The mean BUT test value was 10.05 +/- 3.26 in group 1 and 13.64 +/- 4.28 in group 2. There was a statistically significant difference between the 2 groups for this test (p = 0.001). The mean impression cytology score was 1.65 +/- 0.90 in group 1 and 1.39 +/- 0.96 in group 2. There was no statistically significant difference between the 2 groups when the cytology grade score was compared (p = 0.227). We found no statistically significant difference for age, gender, disease duration, systemic drug use, Schirmer-I, BUT, and impression cytology degrees between the Behget's disease patients with and without ocular involvement (p > 0.05). Conclusions: We found that there was a statistically significant difference between Behget's disease patients and normal subjects regarding the ocular film layer, but no difference regarding conjunctival surface epithelial morphology.Öğe Traumactic superior oblique tendon rupture: case presentation(Medicine Science, 2016) Gunduz, Abuzer; Firat, Murat; Mutlu, Kayhan; Demirel, Ersin ErsanÖz (İngilizce): We present a 47-year-old male with superior oblique (SO) tendon rupture that developed due to a broken metal hook while installing snow chains on his car. The patient presented to our clinic as an emergency for the right eye trauma and pain. The examination revealed a small cut in the right upper eyelid and an edematous tendinous structure that extended downwards through the conjunctival cut at the upper fornix. This structure was thought to be the SO tendon. Emergency exploration and SO tendon repair were performed under general anesthesia. The SO tendon was sutured to its own insertion region 5 mm in width and 5 mm behind a point 3 mm temporal to the superior rectus muscle. The conjunctiva was also repaired. There was 6 PD (prism diopter) right hypertropia and vertical diplopia on postoperative follow-up. The diplopia symptoms improved in the postoperative 3rd month. The patient had no diplopia at the 6th month follow-up but 4 PD hypertropia continuedÖğe X’e bağlı juvenil retinoskizisli iki kardeş olgu(2012) Dorak, Ferhat; Demirel, Soner; Doğanay, Selim; Düz, Cem; Gündüz, Göksel; Demirel, Ersin ErsanX’e bağlı juvenil retinoskizis, hayatın erken döneminde ortaya çıkan, bilateral tutulum gösteren bir konjenital okuler bir hastalıktır. X-bağımlı herediter geçiş şekli nedeniyle hastalık esas olarak erkeklerde görülür. Tipik oftalmoskopik ve elektrofizyolojik bulguları vardır. Esas bulguları makülopati ve periferal retinoskizistir. Bu çalışmada aile soy ağacına bakıldığında X’e bağlı geçiş gösterdiği görülen Juvenil Retinoskizisi (XLRS) olan iki kardeş olgu ve hastalıkla ilgili güncel gelişmeler sunulmaktadır.
