6 research outputs found

    Short-term variations of optic coherence tomography findings in mild and severe chronic obstructive pulmonary disease

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    Objective To evaluate the short-term changes in subfoveal choroidal thickness (SFCT), ganglion cell complex (GCC) analysis, and retinal nerve fiber length (RNFL) of patients with chronic obstructive pulmonary disease (COPD) in a 3-month follow-up. Materials and methods Forty-eight patients with COPD (96 eyes) and 40 control subjects (80 eyes) were enrolled in our study. COPD patients were grouped according to disease severity as Group 1 (mild–moderate) and Group 2 (advanced). GCC, RNFL, and SFCT analysis by Cirrus SD-OCT were obtained for all eyes, in two consecutive examinations with a 3-month interval. Results SFCT in Group 2 was lower than Group 1 and control group in the initial and 3rd month examination (p < 0.001, respectively). Inferior RNFL in Group 2 were lower than control group in the initial and 3rd month examination (p = 0.002, p < 0.001, respectively) Temporal RNFL were lower in Group 2 than Group 1 in 3rd month examination (p = 0.009). Average, superior, superotemporal, inferior, and inferonasal GCC analyses of the Group 2 were lower than control group both in the initial and 3rd month examination (p = 0.001, p < 0.001, respectively) SFCT, average, and superior GCC of Group 2 were significantly reduced during the 3-month follow-up (p < 0.001). Conclusion Hypoxia is thought to be the underlying mechanism in COPD, which may influence retinal and choroidal OCT parameters. Decrease in blood flow of optic nerve head, increased vascular resistance, and reduced blood flow in choroid may affect the visual ability in these patients, which should be kept in mind during their follow-u

    Unconstrained 1D Range and 2D Image Based Human Detection

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    OCT Evaluation of Retinal Parameters in Pediatric Gastritis Patients with Helicobacter Pylori

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    Objectives: The aim of this study was to investigate the effect of Helicobacter pylori (H. pylori) infection on choroidal thickness (CT), retinal nerve fiber layer (RNFL) thickness, and ganglion cell (GCL+IPL) complex thickness in childhood cases of gastritis. Methods: A total of 104 eyes of 52 children were included in the study. Two groups were created: 54 eyes of 27 H. pylori gastritis cases (Group 1) and 50 eyes of 25 gastritis without H. pylori cases (Group 2), as confirmed by an endoscopic biopsy. The mean subfoveal, submacular, and peripapillary CT, RNFL thickness, and GCL+IPL complex thickness was measured using spectral domain optical coherence tomography. Results: The mean subfoveal CT values were significantly higher in Group 1 compared with Group 2 (p=0.042). The mean submacular CT and peripapillary CT measurements of the eyes in Group 1 was greater than that of Group 2, but the difference was not statistically significant (p>0.05). There was also no statistically significant difference between the GCL+IPL complex or RNFL thickness values of the groups (p>0.05). Conclusion: H. pylori is a common gastrointestinal infectious agent with asymptomatic carriers in the population. The role of this agent in ocular pathologies in adult patients has been the subject of many recent studies, but secondary ocular findings in patients with H. pylori gastritis in childhood have not yet been investigated. The results of this study showed that the subfoveal CT value was significantly greater in children with H. pylori gastritis

    Unilateral sequential papillophlebitis and central retinal artery occlusion in a young healthy patient

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    A 23-year-old girl presented to the clinic with metamorphopsia and photopsia in her left eye. After detailed ophthalmic examination, central retinal vein occlusion with optic disc edema was detected in that eye. Three days after diagnosis, the patient returned to our clinic with visual acuity decrease. Central retinal artery occlusion sparing cilioretinal artery was detected. All the laboratory tests were normal except for heterozygous methylenetetrahydrofolate reductase mutation (A1298C genotypes) and an indefinite Lyme disease seropositivity. Symptoms and visual disturbance recovered without any further treatment other than acetylsalicylic acid for prophylaxis
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