The Relationship between Organizational Values and Propensity to Export in Industrial Town of Sanandaj (No.2)

This research investigates the relationship between organizational values and propensity. In the manufacturing Firms of Sanandaj the statistical population includes (No.2). Among these 1142 Cases were Chosen in this research, due to the nature of the research subject and Statistical population. Random Stratified Sampling was used and, based on Cochran formula 287 cases completed the questionnaire the research is descriptive correlational data was gathered by a verified questionnaire which a-Chronbach in the questionnaire included organizational value variable (a=/082).and in the questionnaire , the export propensity was /0 84 the regression analysis result show the control variable (export propensity), is affected at, first , from the variable of the values related to the quality and the consumers. This variable determine 30% of the variance of expert propensity among the studied population then , the control is affected variable from external social value variable this variable determine 29% of the export propensity variance among the studied population then, the control variable from external social value variable this variable determine 29% of the export propensity variance among the studied population. The third effective variable on export propensity is economic - Supportive Values Variables. This variable determined %27 of the export propensity variance among the studied population

Biometric Indices and Their Relation with Age, Sex and Ethnicity

Objective: The aim of the present study was to evaluate the association of biometric indices with age, gender and ethnicity.Patients and Methods:  Three hundred and seventy patients entered the study from Basir Eye Clinic refractive assessment clinic. Sociodemographic data was gathered. Ocular parameters for both eyes and corneal curvature were measured by immersion technique and manual keratometry, respectively.Results: Axial length was significantly higher among male patients (P = 0.01) and vitreous chamber depth was significantly higher in females (P = 0.02). Axial length and vitreous chamber depth parameters were significantly higher among Arab patients (P = 0.01) compared to Persian patients and there was no other significant differences between these two groups. A significant increase in lens thickness and mean K (P < 0.001, coefficient = 0.15 and 0.023 respectively) and a significant reduction with axial length, anterior chamber depth and vitreous chamber depth (P < 0.001, coefficient = - 0.31, - 0.10 and - 0.37 respectively) were observed in correlation with the age of participants.Conclusion: There was correlation between axial length, depth of the anterior chamber, vitreous chamber depth, lens thickness and mean k with age of the participants. Male subjects and specific ethnicities such as Arab patients tend to have higher axial length values.Keywords: Axial length, anterior chamber depth, vitreous chamber depth, sex, age, Iran

A Rare Case of Concurrent Granular Corneal Dystrophy and Keratoconus

A 23-year-old female presented with progressive bilateral visual loss for the past 5 years. The patient had no history of systemic disease, surgery or medications. Complete ophthalmologic examination and topography were performed. On ophthalmic examination, uncorrected visual acuity was 20/30 in the right eye and 20/50 in the left eye. Both corneas appeared hazy on gross examination. On slit-lamp biomicroscopy, few well circumscribed gray white discrete granular deposits in the central corneal stroma of both eyes were observed. Both corneas were thin and bulging. Corneal topography showed a pattern consistent with keratoconus. The patient was clinically diagnosed as a case of concurrent granular dystrophy and keratoconus, which is a very rare presentation

Visual Acuity and Prognosis among Hyperopic Patients Undergoing Photorefractive Keratectomy Using Allegretto EX500 Excimer Laser

Purpose: This study aims to investigate the visual acuity and prognosis after photorefractive keratectomy among hyperopic patients with and without astigmatism. Patients and Methods: In this interventional case series study, 74 eyes from 42 hyperopia patients with and without astigmatism who underwent photorefractive keratectomy using Allegretto EX500 excimer laser at Torfeh and Negah Eye Hospitals from 2014 to 2018 were enrolled. Pre-and post-surgical visual examination findings, including uncorrected distance visual acuity, corrected distance visual acuity, manifest refraction, cyclorefraction, and slit lamp examinations to measure ocular pressure and the presence or absence of haze, were recorded. Results: The mean age of participants was 34 ± 9 years, and 54.8 % were female. The preoperative mean uncorrected distance visual acuity was 0.55 ± 0.25 LogMAR, which significantly improved to 0.11 ± 0.14 at 6 months postoperatively (P < 0.0001). The predictive value for surgical outcomes at six months post-operation was 71.6 % within ±0.5 diopter, 89.2 % within ±1 diopter, and 97.3 % within ±2 diopters. No eye lost corrected distance visual acuity of two lines or more, and only 16.6 % (12 eyes) experienced a one-line reduction in corrected distance visual acuity. No other notable complications occurred. Conclusion: Photorefractive keratectomy using Allegretto EX500 excimer laser is an effective and safe method for correcting mild to moderate hyperopia with or without astigmatism

Descemet Stripping Automated Endothelial Keratoplasty Combined with Phacoemulsification; a Follow up Study

Purpose: To evaluate the surgical outcome and refractive status after triple procedure in patients with Fuchs’ dystrophy combined with cataract. Patients and Methods: Thirty four consecutive eyes of 29 patients with coexisting cataract and Fuchs’ dystrophy entered the study. All patients underwent phacoemulsification and IOL implantation through a temporal incision followed by Descemet stripping automated endothelial keratoplasty  (DSAEK). Patients were assessed regarding best corrected visual acuity (BCVA), refractive cylinder and refractive spherical equivalent before surgery, after 3 months and 3 years of follow-up. Results: The mean BCVA was 0.87 ± 0.448 logMAR pre-operatively which increased to 0.29 ± 0.164 logMAR at three months (p <0.001), and 0.19 ± 0.129 at three years (p <0.001). The mean preoperative spherical equivalent was 0.758 ± 2.384 which reached 0.32 ±0.55 (p <0.001) and 0.24 ± 0.46 (p <0.001) three months and three years after the simultaneous surgery, respectively. The mean preoperative cylinder was -1.43 ± 1.141 which reached -0.87 ±0.55 (p <0.001) and -0.69 ± 0.39 (p <0.001); three months and three years after the simultaneous surgery, respectively. Conclusion: Refractive and visual outcomes after triple surgery are favorable in terms of BCVA, refractive cylinder and refractive spherical equivalent. Therefore, triple procedure might be recommended in older patients due to its rapid visual rehabilitation.Keywords: Descemet stripping automated endothelial keratoplasty; phacoemulsification; best corrected visual acuity; refractive cylinder; spherical equivalent

Visual Pathway Disturbances in Rosai-Dorfman Diusese: a Case Report

Rosai-Dorfman is a usually benign disease which is characterized by over production and accumulation of a specific type of white blood cell in the lymph nodes, most often those of the neck region. Different organs including the central nervous system may be affected in rare cases. The aim of the present manuscript is to report visual pathway disturbances measured using in a case of Rosai-Dorfman with central nervous system involvement using electroretinography and visual evoked potential techniques.Keywords: Histiocytosis; Sinus; Electroretinography; Evoked potentials; Visual

Bilateral Vision Loss in a Patient Following Cardiac Surgery

Cardiac surgery describes any surgical procedure involving the heart or the blood vessels carrying blood to and from it. It is usually a safe surgery regarding the visual system; however, in rare cases, due to certain complications, a devasting consequence occurs, leading to total blindness in patients. In this regard, a central vision loss in a 62-year-old patient following cardiovascular surgery is reported

Concomitant Orbital Cavernous Hemangioma and Solitary Fibrous Tumor

Cavernous hemangiomas are the most frequent tumors in orbital region. Hemeangiopricytomas and solitary fibrous tumors are uncommon neoplasms found in different location, including the orbit. We present a 50-years-old man with coincide unilateral orbital cavernous hemangioma and solitary fibrous tumor. The initial diagnosis was orbital tumor. Computed tomography (CT) was performed. On CT two intraconal solid mass in right orbit positioned relatively near each other Antro-postriorly were observed. Tumors were excised totally with lateral orbitotomy method and sent for histopathologic examination. To our knowledge, only one case report of splenic hemangiopricytoma adjacent to cavernous hemangioma of colon has been reported in the literature. Our case shows the coincidence of hemangiopricytoma adjacent to cavernous hemangioma is possible and should be considered

Visual Evoked Potentials Changes among Patients with Chronic Mustard Gas Exposure

Purpose: To report the chronic effect of mustard gas exposure on visual pathway measured by visual evoked potentials.Patients and Methods:  The present study included 150 participants in three groups. The case group included 50 patients with chronic mustard gas exposure inflicted on them during the Iran - Iraq war (1980 - 1988).  The first control group included fifty veterans of the Iran -  Iraq war with no history of exposure to mustard gas and the second control group included 50 age and sex matched participants with no history of involvement in the war. Visual evoked potentials including latency and amplitude of VEP, P100 peak wave were measured in all participants and were compared between groups. Results: The result of the present study showed significant delay in mean latency of VEP, P100 peak in the case group compared to both control groups, while the difference in amplitude of VEP, P100 peak was not statistically significant. Conclusion: A significant delay in the latency of VEP, P100 peak among patients with a chronic history of mustard gas exposure was found, which might be due to disturbances in visual pathway caused by mustard gas exposure.Keywords: Mustard gas; Evoked potentials; Visual; Iran

Construction of experimentally validated lncRNA-miRNA‐mRNA Regulatory Network in Keratoconus

Objectives: Keratoconus is a rare genetic eye disease that affects the cornea. It can be passed down from parents to children. Scientists are working on finding the mechanism of development and pathology of this disease. So, identifying gene expression patterns and the regulator factors that impact mRNA expression level could modulate Keratoconus pathogenesis. As these regulatory factors, Long non-coding RNAs (LncRNAs) in competition with mRNA can interact with microRNAs (miRNAs), regulating gene expression. However, the roles of competitive endogenous RNA (ceRNA) networks consisting of lncRNAs, miRNAs, and messenger RNAs (mRNAs) remain Keratoconus unclear. This study was performed to explore novel regulatory networks in Keratoconus disorder. Methods: The mRNA expression profiles were retrieved from the Gene Expression Omnibus (GEO). Candidates differentially expressed genes (DEGs) were identified to investigate miRNA and mRNA, respectively and construct a lncRNA-miRNA-mRNA network through a comprehensive bioinformatics strategy and analysis. Results: Through analyzing GSE112155 datasets, 1lncRNA, XIST, was identified. 488 miRNAs and twenty-nine mRNA were obtained as XIST targets from databases that deposit experimental data. So, lncRNA-miRNA- mRNA regulatory network was constructed based on the interactions. Through centralities analysis of the network, top 10 hub nodes (CDKN1A, XIAP, MAPK1, XIST, SP1, AR, LARP1, MACC1, PTEN, EGFR) were discovered. Our data showed that among miRNAs, has-mir-2110 plays key interaction role in this network. Moreover, by preformed pathway analysis, TGF-beta Signaling Pathway was identified. Conclusions: Our study provides a novel perspective on the regulatory mechanism of Keratoconus involving Competing for endogenous RNA (ceRNA), including lncRNA, miRNAs, and mRNA