Browsing by Author "Sefi-Yurdakul, Nazife"

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Causes of low vision and blindness in a Turkish adult population: the Izmir eye study
(2018) Sefi-Yurdakul, Nazife; Koc, Feray; Erden, Veysi; 0000-0003-2005-9256; 29748945; AAF-4678-2020
Background: Data from Turkey show that sense organ diseases were the second leading cause of years lost due to disability in 2015. However, there are no reliable data on either the baseline causative disorders of visual impairment or the burden of these disorders on the population in Izmir region. Izmir is the third most populated city of Turkey with a population of approximately 4.2 million. Aim: The purpose of this study was to define the baseline disorders causing low vision and blindness in accordance with World Health Organization criteria in an adult population in Izmir. Methods: We evaluated the ophthalmologic reports of 20 790 people in Izmir, Turkey. Age- and sex-specific causes of low vision and blindness were identified. Results: Bilateral low vision and blindness was detected in 347 people, 172 males and 175 females. For those aged 18-50 years, retinal dystrophies (37%), congenital eye anomalies (14%) and myopic degenerations (13%) were the most common causes. For those aged 50+years, age-related macular degeneration (21%) was the leading cause. Diabetic retinopathy (17%), corneal opacities (14%), cataract (12%) and glaucoma (9%) were also important. Sex was not a significant determinant. Conclusion: The specific causes of visual impairment vary greatly with age, however, unavoidable retinal pathologies were the predominant causes at all ages.
Clinical Features, Etiological Reasons, And Treatment Results In Patients Who Developed Acute Acquired Nonaccomodative Esotropia
(2023) Sefi-Yurdakul, Nazife; https://orcid.org/0000-0003-2005-9256; 35994189; AAF-4678-2020
Purpose To evaluate the clinical features, possible etiological reasons, and treatment results in children who developed acute acquired comitant esotropia (AACE) without strabismus in previous years. Methods Medical records of the patients who were diagnosed with AACE between July 2017 and June 2021 were retrospectively reviewed. The children with ocular and orbital pathology, hypermetropia > 2.00 diopters, and anisometropia > 1.00 diopters were not included in the study. Possible etiological factors that could cause esotropia, treatment results, motor, and sensory functions were investigated. Results The mean age at first admission, and the onset of AACE, was 8.8 +/- 2.9 (4-13) years of three female (23.1%) and 10 male (76.9%) cases. The causes of AACE were determined to be occlusion of the eye due to corneal foreign body removal in one (7.7%), emotional stress in one case (7.7%), and excessive close work, on computer and smartphone screens in the other 11 cases (84.6%). Orthotropia was achieved in cases who underwent strabismus surgery (n = 10) and in cases using the prism (n = 2); except for one case, all (92.3%) achieved binocular single vision (100 s/arc stereopsis and fusion) after treatment, while there was no binocular single vision in any of the cases before treatment. Conclusions Acute acquired comitant esotropia is a rare clinical entity. Successful motor and sensory outcomes can be achieved by strabismus surgery or by prism therapy. It is critical to investigate the patients with AACE in terms of intracranial pathologies, although rarely seen.
Clinical Features, Etiological Reasons, and Treatment Results in Patients Who Developed Acute Acquired Nonaccomodative Esotropia (August, 10.1007/S10792-022-02458-4, 2022)
(2023) Sefi-Yurdakul, Nazife; https://orcid.org/0000-0003-2005-9256; 36279028; AAF-4678-2020
The Effects of Partial and Full Correction of Refractive Errors on Sensorial and Motor Outcomes in Children with Refractive Accommodative Esotropia
(2019) Sefi-Yurdakul, Nazife; Kaykisiz, Huseyin; Koc, Feray; https://orcid.org/0000-0003-2005-9256; 29549487; AAF-4678-2020
PurposeTo investigate the effects of partial and full correction of refractive errors on sensorial and motor outcomes in children with refractive accommodative esotropia (RAE).MethodsThe records of pediatric cases with full RAE were reviewed; their first and last sensorial and motor findings were evaluated in two groups, classified as partial (Group 1) and full correction (Group 2) of refractive errors.ResultsThe mean age at first admission was 5.843.62years in Group 1 (n=35) and 6.35 +/- 3.26years in Group 2 (n=46) (p=0.335). Mean change in best corrected visual acuity (BCVA) was 0.24 +/- 0.17 logarithm of the minimum angle of resolution (logMAR) in Group 1 and 0.13 +/- 0.16 logMAR in Group 2 (p=0.001). Duration of deviation, baseline refraction and amount of reduced refraction showed significant effects on change in BCVA (p<0.05). Significant correlation was determined between binocular vision (BOV), duration of deviation and uncorrected baseline amount of deviation (p<0.05). The baseline BOV rates were significantly high in fully corrected Group 2, and also were found to have increased in Group 1(p<0.05). Change in refraction was -0.09 +/- 1.08 and +0.35 +/- 0.76 diopters in Groups 1 and 2, respectively (p=0.005). Duration of deviation, baseline refraction and the amount of reduced refraction had significant effects on change in refraction (p<0.05). Change in deviation without refractive correction was -0.74 +/- 7.22 prism diopters in Group 1 and -3.24 +/- 10.41 prism diopters in Group 2 (p=0.472). Duration of follow-up and uncorrected baseline deviation showed significant effects on change in deviation (p<0.05).Conclusions p id=Par4 Although the BOV rates and BCVA were initially high in fully corrected patients, they finally improved significantly in both the fully and partially corrected patients. Full hypermetropic correction may also cause an increase in the refractive error with a possible negative effect on emmetropization. The negative effect of the duration of deviation on BOV and BCVA demonstrates the significance of early treatment in RAE cases.
Inferior Oblique Overaction: The Results of Myectomy in Cases with a Primary Position Vertical Deviation Less and More Than 20 Prism Diopters
(2020) Sefi-Yurdakul, Nazife; Gucyetmez, Volkan; 0000-0003-2005-9256; 32874045; AAF-4678-2020
PURPOSE: The purpose of this study is to evaluate the results of myectomy in inferior oblique overaction cases with a vertical deviation angle of <20 and >= 20 prism diopters (PD) in the primary position. METHODS: The medical records of cases with inferior oblique overaction that underwent inferior oblique myectomy for >= 6 PD hypertropia in the primary position and >+1 inferior oblique overaction were reviewed. Preoperative and postoperative examination findings and success rates were compared of cases with a deviation angle <20 PD (Group 1) and >= 20 PD (Group 2). RESULTS: The mean age of 35 (58%) female and 25 (42%) men cases of Group 1 (n = 60) were 12.8 +/- 9.4 years; the mean age of 25 (58%) female and 18 (42%) male cases of Group 2 (n = 43) were 14.8 years (P = 0.340). The near hypertropia was decreased from 11 to 0.5 PD in Group 1, from 22.1 to 5.1 PD in Group 2 cases (P < 0.001). The distance hypertropia was decreased from 11.3 to 0.5 PD in Group 1 and from 23.3 to 6.1 PD in Group 2 cases (P < 0.001). The mean degree of hypertropia at near and distance was statistically significantly higher both pre- and post-operatively in Group 2 than in Group 1 (P < 0.001), and improved statistically significantly with the initial surgery in both groups (P < 0.001). The rate of the presence of stereopsis of >= 3000 s/arc and fusion, the main criteria of binocular vision (BOV), was not statistically significantly different between the Groups before (P = 0.577) and after the surgery (P = 0.678), but the presence of BOV significantly increased both in Group 1 (P < 0.001) and Group 2 (P = 0.004) postoperatively. The number of cases with surgical success was 57 (95%) and 25 (58%), respectively, in Groups 1 and 2 (P < 0.001). CONCLUSIONS: Myectomy is an effective surgical procedure that can be easily and quickly performed in inferior oblique overaction cases and has high success rates in cases with a small-to-moderate angle of deviation.
Surgical treatment of consecutive exotropia: Comparison of different surgical methods applied to one eye in one session
(2021) Sefi-Yurdakul, Nazife; Oto, Sibel; Pelit, Aysel; 0000-0003-2005-9256; 34308671; AAF-4678-2020
Purpose: To compare the different surgical methods performed on a single eye in a single session and the factors that affect the success of patients having consecutive exotropia (XT) developed after esotropia surgery. Methods: The medical data of the patients who underwent surgery for consecutive XT were reviewed retrospectively. Patients with followed of 6 months or more were divided into four groups; patients with medial rectus (MR) advancement (Group 1 = 10), MR advancement and MR resection (Group 2 = 12), MR advancement and lateral rectus (LR) recession (Group 3 = 13), MR advancement, MR resection, and LR recession (Group 4 = 14). Success results and possible risk factors were investigated. Results: Forty-nine patients with consecutive XT (21 female, 28 male) were enrolled in the study. The mean age of overall patients was 22.97 years at surgery for consecutive XT. The groups did not display significant differences in terms of surgery ages, gender, refraction values, visual acuity, amblyopia, inferior oblique overaction, limitation of adduction, surgical success rates, and follow-up time (p > 0.05). Patients of Group 4 had larger preoperative and postoperative deviation, while Group 1 had smaller (p < 0.05). The surgical success rates of Groups 1, 2, 3, 4 were 90%, 75%, 76.9%, and 50%, respectively (p = 0.192). Statistically, no factor was found to be effective in surgical success rates (p > 0.05). Conclusion: Surgical treatment of consecutive XT is successful in most of the patients with numerous surgical options performed on a single eye in a single session. Patients, particularly with a high amount of deviation should be warned about the possibility of additional surgery.