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  • Küçük Resim
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    Does the use of cannabinoids affect the ocular surface
    (İnönü Üniversitesi, 2022) Mutlu, Kayhan; Cumurcu, Tongabay; Elbozan Cumurcu, Birgül; Şamdancı, Emine
    To examine tear functions and ocular surface variables in patients with cannabis addiction. Materials and Methods: This clinical trial was planned as a prospective case-control study. In this study, 51 male patients with cannabis addiction (group 1) and 51 healthy volunteers (group 2) with similar demographic characteristics were included. Visual acuity, spherical equivalent, biomicroscopic examination, Schirmer test, tear break-up time (TBUT), and impression cytology (Nelson scores) results were recorded, and the 2 groups were compared with each other. Results: The mean Schirmer values were 9.68 ± 6.8 mm and 8.39 ± 4.08 mm in group 1 and group 2 (p = 0.97), respectively, whereas the mean TBUT values were 9.96±3.9 and 9.29±4.01s. (p = 0.35) and the mean Nelson scores were 1.49±1 and 1.25±0.97 in group 1 and group 2, respectively (p = 0.26). Conclusion: In this study, the effects of cannabis addiction on the ocular surface were evaluated using Schirmer, TBUT, and impression cytology methods. In the statistical analysis, no significant difference was found compared to the control group. This study showed that tear production, tear film stability, and impression cytology of patients with cannabis addiction were not different from the control group.
  • Küçük Resim
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    Evaluation of eye care and ocular findings in critically ill COVID-19 patients
    (John Wiley and Sons Inc, 2021) Ekici Gök, Zarife; Gök, Abdullah; Acun Delen, Leman; S. Kasapoğlu, Umut; Gürbüz, Esra; Mutlu, Kayhan
    The current study aimed to evaluate eyecare needs along with ocular findings in patients treated in intensive care units because of Covid-19 infection. Materials and Methods: A total of 93 patients, 58 men and 35 women, who were under follow-up and treatment in intensive care because of COVID-19 infection from 1 January 2021 to 15 February 2021 were included in the study. Detailed eye examinations of the patients were performed with a portable handheld biomicroscope, direct and indirect ophthalmoscope. Cases requiring treatment for eye diseases were identified and treated. Results: The mean patient age was 68.32 ± 9.97 years; 35 patients were followed up and treated with non-invasive mechanical ventilation and 58 patients with invasive mechanical ventilation support. Mild, moderate, and severe chemosis was observed in 19 patients (20.4%), 10 patients (10.8%) and 4 patients (4.3%), respectively. Conjunctivitis (8.6%) was observed in eight patients. Corneal abrasion was present in seven patients (7.5%). Keratitis secondary to exposure keratopathy was observed in one patient. Eye care and medical treatment were initiated for these patients. We noted eight patients (8.6%) with retinal haemorrhage; however, to the best of our knowledge, these patients may show acute retinal involvement secondary to systemic diseases or have previous retinal findings other than Covid-19 infection or treatments. Conclusion: Findings of ocular involvement because of COVID-19 infection were detected in the present study. Retinal haemorrhages were detected in addition to the common findings in viral infections. Especially in patients supported with mechanical ventilation, the detection and treatment of conditions that require eye care for exposure keratopathy are very important for recovering from the disease and the quality of vision.
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    Oertli vitrektomi cihazı: OS4
    (Ahmet YILDIRIM, 2024) Gürlevik, Uğur; Dalokay, Cumali; Mutlu, Kayhan
    Vitrectomy operations, which started with the construction of the first prototypes of vitrectomy devices in the early 1970s, have become increasingly widespread in parallel with technological developments until today. With the developments in pump systems, lighting systems, and laser systems, patient safety and surgeon comfort are increasing. There are many companies producing vitrectomy devices in the market. Each device has some features that are superior to the others. The current vitrectomy device of Oertli, which has been working in this field since the prototype of the first vitrectomy device, is OS4. In this review, we will give information about the OS4 vitrectomy device of Oertli.