نتایج جستجو برای: pterygium

تعداد نتایج: 3780  

2013
Lei Liu Jingyang Wu Jin Geng Zhe Yuan Desheng Huang

OBJECTIVE Pterygium is considered to be a proliferative overgrowth of bulbar conjunctiva that can induce significant astigmatism and cause visual impairment; this is the first meta-analysis to investigate the pooled prevalence and risk factors for pterygium in the global world. DESIGN A systematic review and meta-analysis of population-based studies. SETTING International. PARTICIPANTS A ...

Journal: :The British journal of ophthalmology 1993
P S Mahar G E Nwokora

Mitomycin C in the form of eye drops in a concentration of 0.4 mg/ml (0.04%) was used as adjunctive treatment for primary and recurrent pterygium after surgical excision. The study was concurrent in nature and consisted of 32 pterygia in 30 patients and was done over a period of 36 months. The object was to observe the effect of mitomycin C drops on pterygium recurrence after surgical excision....

2016
Adnan Alam Mubashir Rehman Bilal Khan Khurshid Alam Adnan Ahmad

Material and Methods: All patients were selected from eye OPD Lady Reading Hospital, Peshawar. Complete slit lamp examination was performed for pterygium. Patients were divided into two groupsi. e Group A who underwent pterygium excision with conjunctival autograft and Group B who underwent pterygium excision with amniotic membrane graft. Follow up was on 3 rd month postoperatively at which pat...

Journal: :Nepalese journal of ophthalmology : a biannual peer-reviewed academic journal of the Nepal Ophthalmic Society : NEPJOPH 2014
Sim Sai Tin Viroj Wiwanitkti

We read the article titled “risk factors for pterygium in the high-altitude communities” and found it very interesting (Maharjan et al, 2014). The authors have highlighted the higher prevalence of pterygium, more amongstthe farmers than in the other professionals. Based on the present report, it seems that there is no specific finding regarding the high altitude environment. The main question i...

Journal: :Collegium antropologicum 2007
Sandra Sekelj Iva Dekaris Edita Kondza-Krstonijević Nikica Gabrić Jurica Predović Sanja Mitrović

The purpose of this study was to evaluate the contribution of ultraviolet light (UV) as a causal factor of primary and pterygium recurrence. A conjuctival autograft transplantation was a surgical method of pterygium treatment. In the first group (38 eyes) were patients with primary and recurrent pterygium exposed to sun (worked outdoors), evaluating geodemographic status, and in the second grou...

2016
Donghyun Jee Eun Chul Kim Eunyoung Cho Jorge G. Arroyo

PURPOSE To investigate the association between blood 25-hydroxyvitamin D levels and pterygium. METHODS Korean National Health and Nutrition Examination Survey 2008-2011 were used for the present epidemiologic study. A total of 19,178 participants aged ≥ 30 years were evaluated for blood 25-hydroxyvitamin D levels and performed ophthalmic slit lamp examinations. Pterygium was considered as a g...

2018
Zongduan Zhang Zhengwei Yang Qintuo Pan Xiaoyi Qin Yuxuan Deng Yuehong Cao

To newly describe the clinical and histopathological characteristics of epibulbar complex cartilaginous choristoma incidentally observed in a series of pterygium excision patients.Noncomparative case series with chart review of 8 patients.During a 4-year period, we identified 8 cases of conventional unilateral nasal subpterygial cartilaginous choristoma in 1799 pterygium patients and analyzed t...

Journal: :The Turkish journal of pediatrics 2013
Banu Güzel Nur Ozden Altıok-Clark Aslı Toylu Güven Lüleci Ercan Mıhçı

Multiple pterygium syndrome is characterized by a number of phenotypic features, small stature, webbing of the neck, elbows, and/or knees, and joint contractures. In this report, we present an 11-year-old boy who had the classical findings of multiple pterygium syndrome, and his chromosomal analysis revealed a 47,XXY karyotype. Interestingly, he did not show any of the main clinical signs of Kl...

2017
Achyut N Pandey

Purpose: Pterygium is a benign growth of conjunctival tissue frequently related to chronic sunlight exposure and hot and dry climate. Purpose of this study was to prospectively analyze the most common pterygium symptoms and risk factors leading to the decision for surgical removal. Methods: 40 patients (27 males, 13 females), mean age 48.75 years old (SD 8.5), with primary pterygium and no othe...

2009
Yonathan Garfias Víctor Manuel Bautista-De Lucio Cynthia García Angel Nava Leonardo Villalvazo María Carmen Jiménez-Martínez

PURPOSE The pterygium is characterized by a fibrovascular neoformation from the bulbar conjunctiva into the cornea. The recent discovery that abnormal markers associated with tumor diseases are identified in the pterygium strengthens the theory that the pterygium is a tumor-like disease rather than a degenerative disease. The CD30 molecule has been identified in neoplastic and normal epithelial...

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