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Öğe Evaluation of the equality of medial rectus advancement to medial rectus resection for consecutive exotropia(2022) Gunduz, Abuzer; Ozturk, Emrah; Ozsoy, ErcanPurpose: The aim of this study was to analyze the amount of medial rectus (MR) advancement in the treatment of consecutive exotropia by comparing it with the amount of MR resection in a sample of patients with constant exotropia and evaluate the effectiveness of MR advancement with lateral rectus (LR) recession in the management of consecutive exotropia.\rMaterials and Methods: A retrospective chart review of patients who underwent unilateral MR strengthening with LR weakening due to consecutive or constant exotropia was performed. Patients with consecutive exotropia underwent MR advancement with LR recession, and those with constant exotropia underwent MR resection with LR recession. The surgical dosages were determined according to a standard table. A successful result was defined as alignment within 10 prism diopters of orthotropia.\rResults: A total of 36 patients fulfilled the inclusion criteria: 18 had consecutive exotropia and 18 had constant exotropia. Successful alignment was obtained in 83.3% of patients with consecutive exotropia and 88.9% of patients with constant exotropia. There was no difference between the amount of MR advancement performed in consecutive patients with exotropia and the amount of MR resection performed in patients with constant exotropia. Postoperatively, while consecutive exotropes with a poor result showed overcorrection, constant exotropes with a poor result showed undercorrection.\rConclusion: This study suggests that there is no difference between the amount of previously recessed MR advancement and that of untouched MR resection. They also showed that MR advancement with LR recession is an effective means of correcting secondary exotropia.Öğe Infantile Esotropia: Clinical Features and Results of Bilateral Medial Rectus Recession(2023) Gunduz, Abuzer; Ozturk, Emrah; Ozsoy, Ercan; güntürkün, Pelin NazlıIntroduction: To define the characteristics of infantile esotropia and evaluate the results of bilateral medial rectus recession in infantile esotropia. Methods: A retrospective review was performed on medical charts of patients diagnosed with infantile esotropia. All patients underwent an ophthalmological examination to detect the conditions that accompany infantile esotropia. Patients with two years of age or older and without fixation preference or amblyopia underwent bilateral medial rectus recession. Results: There were a total of 117 patients with infantile esotropia patients. Infantile esotropia was accompanied by inferior oblique hyperfunction, fixation preference, cross-fixation, pseudoabduction deficit, pattern deviations, nystagmus, dissociated vertical deviation, convergence insufficiency, and abnormal head position. Approximately forty percent of the patients compatible with visual acuity measurements had amblyopia. Bilateral medial rectus recession decreased the mean esotropia from 43.1±15.3 to 7.8±12.8 prism diopters (PD) in 65 patients. Postoperatively, 41 patients had an ocular alignment within 10 PD of orthotropia, 22 patients showed undercorrection and 2 overcorrection. Conclusion: The characteristics of infantile esotropia in our study are substantially consistent with those of early reports, except for convergence insufficiency. This study also showed that bilateral medial rectus recession appears to have a high percentage of undercorrection in short-term postoperative follow-up in infantile esotropia.Öğe Minimally invasive primary excision and primary closure versusprimary closure using mitomycin C to prevent pterygium recurrence(2022) Ozturk, Emrah; Gunduz, Abuzer; DEMİREL, E ERSİNAbstract Aim: This study aimed to present a surgical technique in which we applied minimal excision and primary closure and evaluate the recurrence rate in this technique. Materials and Methods: Data from primary pterygium excision performed from 2013 to 2019, were retrospectively analyzed from the patient’s electronic database. After the pterygium detached from the cornea with the help of blunt dissection, only the cap of the pterygium was resected with a Westcott scissor by vertical incision on the vascular and avascular region border. The primary closure involved a complete closure of the defect in the limbal surface by suturing the pterygium’s head. Patients who underwent only primary closure constituted Group 1, patients who underwent primary closure using mitomycin C as adjuvant therapy constituted Group 2. Results: The study comprised a total of 31 patients, including 12 participants in Group 2 and 19 in Group 1. The average age of all subjects was 58.7 ±9.4 years. The average postoperative follow-up time of groups was 29.2 ±20.1 months and 30.0 ±21.9 months, respectively(p = 0.88). Recurrence was observed in 4 (12.9%) of all patients during follow- up. While recurrence occurred in 10.5% of patients in Group 1, recurrence was observed in 16.7% of patients in Group 2. When the groups were compared in terms of recurrence, no statistically significant difference was observed (p=0.62). Conclusion: This minimal excisional and maximum physiological pterygium surgery is simple, fast, and safe in primary pterygium. It also has a relatively acceptable recurrence rate.Öğe Otogreftli Pterjiyum Cerrahisinde Greft Taşımada Çift Takla Tekniği(2023) Ozturk, Emrah; Gunduz, AbuzerNüks pterjiyumu olan 50 yaşında erkek hasta ve primer pterjiyumu olan 46 yaşında kadın hasta opere edildi. Otogreftin sütürasyonunu kolaylaştırmak ve ameliyat sırasında doğru greft oryantasyonu sağlamak için yeni bir otogreft taşıma tekniği kullanıldı. Pterjiyum eksize edildikten sonra ilk olarak otogreftin üç kenarı kesildi. Daha sonra kesilmemiş kenar üzerinden ilk takla attırıldı ve otogreft alıcı yatağın üst sınırına iki sütür ile sabitlendi. Daha sonra, kesilmemiş son kenar kesildi ve otogrefte sütüre kenar üzerinden ikinci takla attırıldı. Doğru yüzey ve yan yönelime sahip otogreft, alıcı yatağa sütüre edildi. Bu basit teknik, otogreftli pterjiyum cerrahisinde otogreftin hem kolay taşınmasını hem de doğru yönlendirilmesini sağlar.Öğe Scleral-fixated intraocular lens implantation with irregular, knotless, zigzag-shaped scleral tunnel suture technique combined with pars plana vitrectomy or anterior vitrectomy(Wolters Kluwer Medknow Publications, 2024) Gunduz, Abuzer; Ozturk, Emrah; Cankaya, Cem; Atas, Pamuk B. U.PURPOSE: This study aims to introduce a new suture method and report surgical outcomes of patients who underwent scleral-fixated intraocular lens (SF-IOL) implantation combined with either pars plana vitrectomy (PPV) or anterior vitrectomy (AV). METHODS: Twenty-three eyes performed SF-IOL implantation combined with PPV (Group 1), and 34 eyes performed SF-IOL implantation combined with AV (Group 2) were included in the study prospectively. The SF-IOL, either polymethyl methacrylate or foldable IOL, was sutured into the sclera using PC-9 sutures in an irregular, knotless, and zigzag-shaped manner. The scleral tunnel was approximately 12-15 mm long, with at least four sharp edges. Suture tips were trimmed within the scleral tunnel. Postoperative outcomes and complications were evaluated. RESULTS: Both groups showed no complications such as suture tip expulsion, suture reaction, IOL dislocation, or increased intraocular pressure during postoperative visits. Group 1 exhibited a statistically significant improvement in visual acuity compared to preoperative values (P = 0.036 for the 1st month, <0.001 for the 3rd month). Similarly, Group 2 demonstrated a statistically significant improvement in visual acuity compared to the preoperative period (P = 0.001 for the 1st month, <0.001 for the 3rd month). CONCLUSION: The irregular, knotless, and zigzag-shaped scleral tunnel suture technique yielded favorable results in terms of IOL stability and visual acuity. This technique can be safely employed in patients undergoing SF-IOL implantation combined with PPV or AV.Öğe The impact of utilizing a single iris hook as a capsular hook during the implantation of capsular tension rings(Consel Brasil Oftalmologia, 2026) Demirel, Ersan Ersin; Ozturk, Emrah; Gunduz, AbuzerPurpose: To evaluate the effect of using a single iris retractor, affixed to the anterior capsulorhexis at the 12 o'clock position, on the ease of capsular tension ring implantation. Methods: This prospective comparative study comprised 37 patients with zonular weakness attributed to pseudoexfoliation syndrome who underwent capsular tension ring implantation during cataract surgery. In Group 1, a single iris retractor was inserted into the anterior capsulorhexis at the 12 o'clock position. Group 2 did not receive this intervention. Zonular weakness was graded on a scale of 1-5, and the subjective difficulty of capsular tension ring implantation was categorized as easy, medium, or difficult. Results: Group 1 and 2 comprised 20 and 17 patients, respectively. There were no significant differences between the groups in age, sex distribution, and presence of glaucoma (p=0.53, p=0.28, and p=1.00, respectively). The mean zonular weakness score was significantly higher in Group 1 (3.35 +/- 0.45) than in Group 2 (2.71 +/- 0.59; p=0.02). Capsular tension ring implantation was significantly easier in the iris retractor group (p<0.001). Conclusions: Placement of a single iris retractor attached to the anterior capsulorhexis at the 12 o'clock position may facilitate easier capsular tension ring implantation, even in patients with greater zonular weakness. This technique could reduce the risk of capsular tension ring displacement into the iridocorneal angle or ciliary sulcus.
