Fakülteler / Faculties

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    Evaluation of the tear parameters of ovulation induction patients in a short time period with anterior segment optical coherence tomography
    (2020) Colak, Eser; Ulusoy, Mahmut Oguz; Ceran, Mehmet Ufuk; Tasdemir, Umit; Kal, Ali; Ozcimen, Emel Ebru; 33470279
    Purpose: The effects of sex steroid hormones on tearparameters are known. Theaim of this studywas to examine the effects on tear parameters during exposure to high-dose sex steroids in a short period of time. Methods: Forty patients who were admitted to the infertility clinic of our hospital and planned to undergo ovulation induction with exogenous gonadotropins were included in our study. Prior tothe initiation of ovulation induction, the basal levels of estradiol were measured on day 3 of the menstrual cycle and ophthalmologic examinations were performed by the ophthalmology department of our hospital. The estradiol levels were-measured on the day ofovulation induction usinghuman chorionic gonadotropin and compared with basal estradiol; eye examinations were also repeated. Result: Forty women with reproductive period and average age of 33.3 +/- 4.2 years were included in this study. Basal levels of estradiol were significantly (p<0.001) higher after ovulation induction than before induction. The scores in the break-up timeand after induction were 6.2 +/- 2.8 sn and 8.4 +/- 1.4 sn, respectively. The values of Schirmer's test were 14.3 +/- 7.1 mm and 20.6 +/- 6.2 mm before and after induction, respectively. Both values were significantly higher after ovulation induction (p<0.001; p=0.001, respectively). Conclusion: We observed improvemet in tear function tests following the use of estradiol even for a limited time .The use of estradiol during menopause may improve dry eye symptoms in patients.
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    Evaluation of dry eye disease in newly diagnosed anxiety and depression patients using anterior segment optical coherence tomography
    (2019) Ulusoy, Mahmut Oguz; Isik-Ulusoy, Selen; Kivanc, Sertac Argun; 31417939
    Background We aimed to evaluate dry eye diseases (DED) in patients with newly diagnosed depression and anxiety patients. Methods Forty newly diagnosed depression, 35 anxiety patients, and 37 controls without any history of taking psychiatric drugs (or before the beginning of psychiatric medication) and topical ophthalmic drop use, were included in the study. All depression and anxiety diagnoses were performed by an experienced psychiatrist. Beck depression and anxiety tests were used to measure disease severity. Tear film break up time (TBUT), Schirmer's test, Oxford scores and ocular surface disease index (OSDI) were admiinistered to participants. Anterior segment optical coherence tomography was used to measure tear meniscus heights (TMH), tear meniscus depths (TMD) and tear meniscus areas (TMA). Results In anxiety and depression groups, Schirmer's test (mm) (7.24 +/- 6.02, 6.58 +/- 4.9 and 18.79 +/- 4.9 respectively, p < 0.05) and TBUT (s) (5.62 +/- 3.1, 5.6 +/- 3.5 and 13.37 +/- 1.7 respectively, p < 0.05) were significantly lower than control group. In addition, OSDI and Oxford scores were significantly higher than controls. OSDI scores were 28.01 +/- 19, 30.43 +/- 18.49, 14.38 +/- 8.14 respectively (p = 0.002) and Oxford scores were 1.9 +/- 0.7, 2.1 +/- 0.6 and 0.7 +/- 0.4 respectively (p = 0.001). TMD, TMH and TMA values were significantly lower in anxiety and depression groups compared with control groups. Correlations between disease inventory scores and dry eye tests were detected. Conclusions This study showed a relation between DED and newly diagnosed anxiety and depression patients with no history of psychiatric drug use. The presence of correlation between dry eye tests and disease inventory scores strengthens this association. This is an important knowledge that need to be evaluated in these patients before starting psychiatric medication.
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    Spectral domain optical coherence tomography findings in Turkish sickle-cell disease and beta thalassemia major patients
    (2019) Ulusoy, Mahmut Oguz; Turk, Hakan; Kivanc, Sertac Argun; 31528761
    Purpose: To assess probable structural changes using spectral domain optical coherence tomography (SD-OCT) on sickle-cell disease (SCD) and beta thalassemia major (B-TM) patients, without any retinal abnormalities. Methods: This cross-sectional study included 32 B-TM, 34 SCD patients, and 44 healthy controls. One of the eyes of all participants was evaluated for SD-OCT and choroidal thickness, retinal nerve fiber layer (RNFL) thickness, central macular thickness (CMT), ganglion cell complex (GCC). Results: Age, gender, and intraocular pressure (IOP) were not statistically different between the three groups. Hemoglobin (Hgb), hematocrite (Htc), and ferritin levels were not statistically different between the SCD and B-TM groups. Choroidal thickness at the subfoveal region was statistically higher in the control group (353.79 +/- 71.93) than in the B-TM (317.41 +/- 53.44) and SCD (283.21 +/- 63.27) groups. In addition, it was statistically higher in the B-TM group than the SCD group (P = 0.05). CMT did not differ among the three groups, average RNFL was only significantly thinner in SCD than in controls, and GCC thickness was significantly thinner in SCD than in controls and B-TM. Conclusion: In both diseases, we can show early structural changes even if proliferative or non-proliferative retinopathy or other ocular manifestations were not developed yet. Copyright (C) 2019, Iranian Society of Ophthalmology. Production and hosting by Elsevier B.V.
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    How Important Is the Etiology in the Treatment of Epiphora?
    (2016) Ulusoy, Mahmut Oguz; Kivanc, Sertac Argun; Atakan, Mehmet; Akova-Budak, Berna; 27595013
    Purpose. There are several etiological factors that cause epiphora, and treatment differs according to the cause. We aimed to evaluate the etiology of epiphora and the treatment modalities of the affected patients. Materials and Methods. Data of patients who were referred to ophthalmology clinics for epiphora were retrospectively analyzed. All patients were evaluated for epiphora etiology, treatment modalities, and duration of complaints, after complete ophthalmologic examination. Results. This study consisted of 163 patients with a mean age of 64.61 +/- 16.52 years (range 1-92 years). Lacrimal system disease (48.4% [79/163]) was the most common cause, followed by ocular surface disease (dry eye/blepharitis) (38.7% [ 63/163]). Among the patients included in this study, 69% (113/163) did not receive any treatment, whereas only 1.8% (3/163) were treated surgically. About 4.3% of the patients (7/163) had a complaint for more than 5 years (p = 0.012) and six of these had chronic dacryocystitis and one had ectropion. Conclusion. Epiphora not only has a negative impact on patients' comfort, but also puts them at risk for probable intraocular operations in the future. Therefore, the wide range of its etiology must be taken into consideration and adequate etiology-specific treatment options must be applied.
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    Evaluation of the acute effect of haemodialysis on retina and optic nerve with optical coherence tomography
    (2016) Emre, Sinan; Ozturkeri, Anil; Ulusoy, Mahmut Oguz; Cankurtaran, Cem; 28003781; T-5643-2019
    Purpose: The primary objective of haemodialysis (HD) was to correct the composition and volume of body fluids. The aim of this study was to evaluate the acute effect of HD on mean arterial pressure changes and on retina and optic nerve with optical coherence tomography (OCT). Methods: Fifty-three eyes of 28 patients were enrolled in this study. The patients' retinal and RNFL thicknesses were measured by OCT and mean arterial pressure alterations were recorded before and immediately after HD session. Results: The results show that while there was a reduction at central foveal thickness and ganglion cell layer thickness, central sub-field and RNFL thickness were increased with HD session. But none of them were statistically significant (p = 0.320, p = 0.792, p = 0.744, p = 0.390). The mean arterial pressure of the patients decreased significantly (p < 0.05) but it was not correlated with retinal and RNFL values. Conclusion: The changes in retinal and RNFL findings were not significant. But these alterations may effect the long term follow-up of the patients with retinal and optic nerve disease. Therefore it is important to pay attention HD session time for these patients' measurements.
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    Are optic discs with large physiological cups really healthy?
    (2017) Ulusoy, Mahmut Oguz; Emre, Sinan; 28254119; T-5643-2019
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    Prevalence and associated factors of external punctal stenosis among elderly patients in Turkey
    (2017) Ulusoy, Mahmut Oguz; Atakan, Mehmet; Kivanc, Sertac Argun; 29160539
    Purpose: To estimate the prevalence of external punctal stenosis (EPS) in the elderly population and investigate associated factors. Methods: A total of 278 patients >= 65 years of age were evaluated for evidence of EPS from January to July 2016. Associated systemic, ocular, demographic, and lifestyle factors were investigated. Multiple logistic regression analyses were applied to evaluate the factors related to having EPS. P values <0.05 were considered statistically significant. Results: The prevalence of EPS in this study population was 63.3%, with a mean age of 70.67 +/- 7.85 (65-92 years). The ocular factor that was most commonly related to EPS was chronic blepharitis (48.9%). EPS was also associated with taking glaucoma medications (95% CI, 0.08-0.96, p=0.043), smoking history (95% CI, 0.13-0.84, p=0.021), ectropion (95% CI, 0.004-0.26, p=0.001), complaints of tearing (95% CI, 1.11-3.52, p=0.02), and outdoor occupational activity (95% CI, 3.42-9.97, p<0.05). Conclusions: EPS is more common in elderly patients than in the general population. Outdoor occupational activity, taking antiglaucomatous medications, ectropion, and smoking are significantly associated with EPS. In addition, surgical treatment decisions should be made after complete evaluation and interviewing the patients.