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Showing 9 results for Subject: Ophtalmology

Motahari Mm (md), Abdolahian N (md), Besharat S (md),
Volume 13, Issue 4 (12-2011)
Abstract

Background and Objective: Floater is defined as dark and vague spots and lines, which presents in visual fields of patients. Etiologies are various and life threatening, due to the serious complications resulted from floaters, this study was designed to assess ophthalmic disorder among patients with floater Gorgan, Iran (2009). Materials and Methods: This cross-sectional study,was done on 164 patients (105 female, 59 male) with floater or photopsia in Gorgan, North of Iran during 2009. Findings of ophthalmic examination and demographic characteristics were recorded in a questionnaire for each patients. Results: The prevalency of floater was higher among patients over sixty years old. 57.2% women with floater were during monopausal period. Myopia (32.9%) and cataract (32.9%) were the most associated ophthalmic diseases. Posterior vitreous detachment and retinal bleeding in patients with floater was 84.1% and 6.1%, respectively. Retinal detachment was not seen in patients. Conclusion: This study showed that posterior retinal detachment is the most frequent associated ophthalmic disorder in patients with floater. Older age, gender, myopia and cataract are considered to be the related risk factors in floater.
Mahjoob M (msc), Validam Mh (md), Azimi Khorasani A (phd), Shahrakipoor M (phd), Momeni Moghadam H (msc), Nejati J (msc), Tavakoli A (bsc), Moradgholi M (bsc), Kamali P (bsc), Sargazi M (bsc),
Volume 14, Issue 2 (6-2012)
Abstract

Background and Objective: Glaucoma is one of the most important cause of blindness wordwide. Exact determination of intra ocular pressure is important for the diagnosis and decision making about glaucoma treatment. Central corneal thickness is considered as effective factor on intra ocular pressure and visual field defect. This study was carried out to determine the relationship between central corneal thickness, intra ocular pressure and visual field in normal tension and primary open angle glaucoma. Materials and Methods: This descriptive study was carried out on 45 eyes with normal tension glaucoma and 45 eyes with primary open angle glaucoma in Al-Zahra ophthalmology hospital in Zahedan, Iran during 2010. Intra ocular pressure and central corneal thickness were measured by Goldman tonometer and pachymeter and visual field exanimated by Humphrey perimeter. Data were analyzed using SPSS-16, paired t-test, ANOVA, Mann–Whitney and Pearson corlateion tests. Results: There was significant correlation between central corneal thickness and intra ocular pressure (r=0.309, P<0.05). A significant difference was detected in intra ocular pressure between two type of glaucoma (P<0.05). Mean value of central corneal thickness in patient with mild visual field defect was higher than severe visual field defect but there was not significant statistical difference between central corneal thickness and visual field defect in subjects with glaucoma. Conclusion: This study indicated that increasing corneal thickness is accompanied with intra occular presure.
Broomand N (md),
Volume 14, Issue 4 (12-2012)
Abstract

Red eye is the most common sign of ocular inflammation. Serious cases of red eye need diagnosis and proper treatment by ophthalmologist but many other from of red eye can be managed primarily by health care personals. If General practioners were able to diagnose and differentiate the causes of red eye the serious complication have not been observed and the patients were have been treated on due time. Some of the causes of red eye are: blepharitis, corneal erosion, sub conjunctival hemorrhage, glaucoma, episcleritis and scleritis.
Kelishadi M , Kelishadi M, Moradi A, Bazouri M, Tabarraei A,
Volume 16, Issue 3 (10-2014)
Abstract

Background and Objective: Pterygium is a fibrovascular lesion of the ocular surface with unknown origin, decrease in the vision. This study was done to evaluate the possible role of Epstein-Barr virus (EBV) in the formation of pterygia. Methods: This case-control study was done on 50 tissue specimens of pterygium from the patients who underwent pterygium surgery as the case group and 10 conjunctival biopsy specimens of individuals without pterygium including the patients whom underwent cataract surgery, as controls. The evidence of EBV infection was tested by polymerase chain reaction (PCR). Results: EBV was detected in three (6%) patients with pterygia. EBV was not detected in controls. There was not any significant correlation between pterygium and the presence of EBV. Conclusion: According to this study, EBV virus is not associated with pterygium formation.
M Mahjoob M, H Ostadimoghaddam H, S Heydarian ,
Volume 18, Issue 4 (12-2016)
Abstract

Color vision deficiency (CVD) is a defect of vision with disability to distinguish colors. Color vision deficiency can be divided into the two categories, congenital and acquired. Congenital color vision deficiency divided into anomalous trichromacy, dichromacy and monochromacy. The most common congenital CVD was deuteranomalous that mode of inheritance is X linked recessive occurring mostly in males. Acquired CVD can occur as a direct result of illness or any related medicine. Color perception changes in acquired CVD may be secondary to primary ocular disease, drug side effect, or serious systemic disease such as diabetes. Dystrophy of cone, types of maculopathy, crystalline lens changes associated with aging, diabetes, glaucoma, optic nerve diseases and traumatic brain injuries can cause CVD. For acquired CVD, type of defect may not be easy to classify; nevertheless, predominantly is tritanopia and type and severity of the defect fluctuates during of disease. It has been suggested that human evolution to industrialized civilization has led to an increased prevalence of CVD in most population. An acquired CVD can reflect a deficiency in color information processing at anywhere along the related visual pathway, from the photoreceptors to the cortex. Sometimes, assessment of color vision can be helpful to detect a visual impairment in early stages.


Monireh Mahjoob , Farkhonde Shahri ,
Volume 23, Issue 1 (3-2021)
Abstract

Background and Objective: Age-related cataract is one of the most important causes of blindness. Early detection of cataracts can help alleviate the problems caused by this disease. This study was performed to evaluate the visual acuity and contrast sensitivity of patients with early cataract.
Methods: This descriptive-analytical study was performed on 54 patients (108 eyes) in the age range of 35 to 50 years with early stage cataract referred to Alzahra Ophthalmology Hospital in Zahedan, souh-west of Iran. The ethnicity of all the participants was Baluchi and Sistani. After correcting the refractive errors if the inclusion criteria were met, visual acuity with E chart at 6 m and Pelli Robson contrast sensitivity chart at 3 m were measured as monocular.
Results: There was a significant correlation between visual acuity and contrast sensitivity (P=0.033, r2=0.205). The mean of visual acuity and contrast sensitivity were not significantly different in the two Baluchi and Sistani ethnicities. But visual acuity and contrast sensitivity were significantly different in the two genders (P<0.05).
Conclusion: Early cataract, although having a minor effect on visual acuity, can reduce contrast sensitivity. Therefore, measuring of contrast sensitivity in normal light condition in patients with early cataract who complain of blurred vision despite normal visual acuity can more accurately assess their visual function.
Masoumeh Eslami , Fatemeh Abdi , Marjan Akbari-Kamrani , Arzhang Gordiz , Fatemeh Najafi ,
Volume 24, Issue 3 (10-2022)
Abstract

Background and Objective: Any factor that disrupts the tear duct can cause epiphora, one of the most prevalent causes for patients to go to ophthalmology clinics. Nasolacrimal duct obstruction can be congenital or acquired. Dacryocystorhinostomy (DCR) surgery, which can be operated using external or endonasal approaches, is the standard treatment for nasolacrimal duct obstruction. This study was carried out to assess the success rate of endoscopic dacryocystorhinostomy surgery for patients with nasolacrimal duct obstruction.
Methods: This descriptive study was carried out on 38 patients (29 females and 9 males), aged over 18 with an average age of 43.07±13.83, suffering from epiphora referring to 5 Azar Hospital in Gorgan (Iran) between 2015 and 2018. The success rate of endoscopic dacryocystorhinostomy surgery for epiphora treatment was evaluated 6 months after the surgery. Furthermore, from the viewpoint of the complications of the surgery and the connection to the CT scan results, endoscopic dacryocystorhinostomy surgery was assessed.
Results: The surgery was successful for 36 patients (94.74%). The extent of the nasolacrimal duct obstruction of the right eye and the left eye was measured at 63.2% and 36.8%, respectively. Slight and heavy bleeding during the surgery was observed in 76.3% and 7.9% of the cases, respectively. Cerebrospinal fluid leakage and orbital injury during the surgery were not seen in the patients. According to the CT scan findings, deviation of the septum was seen in 76.3% of the patients, while septoplasty was operated on in 41.37% of the patients during the surgery. Moreover, half of the patients were suffering from chronic sinusitis for whom, the involved sinuses were opened and sinuses drainage was performed.
Conclusion: Endoscopic dacryocystorhinostomy surgery is an acceptable and successful method for treating epiphora, especially for patients with sinusitis or nasal septum deviation.
 
Mohammad-Reza Ansari-Astaneh , Acieh Es’haghi , Elahe Keshavarzian , Javad Sadeghi , Mohammad Yaser Kiarudi ,
Volume 25, Issue 2 (7-2023)
Abstract

The rise in patients seeking corneal refractive surgery, despite having systemic autoimmune diseases, underscores the need for special considerations when treating these individuals. Recent studies have expanded our knowledge in identifying and evaluating autoimmune disorders and their potential side effects in the results of corneal refractive surgery with laser. This study briefly examines the pathogenic factors, clinical aspects, and possible complications in patients with systemic autoimmune disorders subjected to these surgeries. In total, 132 articles were selected for this research among the reviewed studies. Considering that the release of various cytokines caused by systemic autoimmune disorders can lead to destructive corneal consequences, the need for early diagnosis before any laser surgery for refractive errors seems essential. Although procedures such as LASIK and PRK are commonly performed on patients with autoimmune disorders, important considerations must be made. Studies have not yet confirmed definitive contraindications to laser refractive surgery for autoimmune disorders.



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مجله دانشگاه علوم پزشکی گرگان Journal of Gorgan University of Medical Sciences
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