Ocular Surface Diseases - Some Current Date on Tear Film Problem and Keratoconic Diagnosis最新文献

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Tear Film – Physiology and Disturbances in Various Diseases and Disorders 泪膜-生理和干扰在各种疾病和障碍
D. Kopacz, Łucja Niezgoda, Ewa Fudalej, A. Nowak, P. Maciejewicz
{"title":"Tear Film – Physiology and Disturbances in Various Diseases and Disorders","authors":"D. Kopacz, Łucja Niezgoda, Ewa Fudalej, A. Nowak, P. Maciejewicz","doi":"10.5772/intechopen.94142","DOIUrl":"https://doi.org/10.5772/intechopen.94142","url":null,"abstract":"The tear film is a thin fluid layer covering the ocular surface. It is responsible for ocular surface comfort, mechanical, environmental and immune protection, epithelial health and it forms smooth refractive surface for vision. The traditional description of the tear film divides it into three layers: lipid, aqueous and mucin. The role of each layer depends on the composition of it. Tear production, evaporation, absorption and drainage concur to dynamic balance of the tear film and leads to its integrity and stability. Nonetheless, this stability can be disturb in tear film layers deficiencies, defective spreading of the tear film, in some general diseases and during application of some general and/or topical medications. Dry eye disease is the result of it. In this review not only physiology of the tear film is presented. Moreover, we would like to discuss the influence of various diseases and conditions on the tear film and contrarily, spotlight tear film disorders as a manifestation of those diseases.","PeriodicalId":342661,"journal":{"name":"Ocular Surface Diseases - Some Current Date on Tear Film Problem and Keratoconic Diagnosis","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121500711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Hyperosmolarity of the Tear Film in the Dry Eye 干眼泪膜的高渗透性
Alejandro Aguilar, A. Berra
{"title":"Hyperosmolarity of the Tear Film in the Dry Eye","authors":"Alejandro Aguilar, A. Berra","doi":"10.5772/intechopen.90113","DOIUrl":"https://doi.org/10.5772/intechopen.90113","url":null,"abstract":"The dry eye is a complex multifactor illness of the tear film and of the ocular surface characterized by symptoms of discomfort, vision alterations, and instability of the pre-corneal tear film which may bring about potential damage on the ocular surface. Instability of the film will produce increasing osmolarity of the tear film which will trigger epithelium osmotic lesions and inflammation. As these changes take place on the ocular surface, neurophysiologic mechanisms of homeostasis will be altered which will complicate the process even further with the cropping of vicious physiopathologic circuits.","PeriodicalId":342661,"journal":{"name":"Ocular Surface Diseases - Some Current Date on Tear Film Problem and Keratoconic Diagnosis","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130897212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent Advances in the Effects of Various Surgical Methods on Tear Film after Pterygium Surgery 不同手术方式对翼状胬肉术后泪膜影响的研究进展
Juan Wang
{"title":"Recent Advances in the Effects of Various Surgical Methods on Tear Film after Pterygium Surgery","authors":"Juan Wang","doi":"10.5772/intechopen.90635","DOIUrl":"https://doi.org/10.5772/intechopen.90635","url":null,"abstract":"Pterygium is a common ocular disorder with a high prevalence. Surgical resection is the main method of treating pterygium. Recurrence rate of traditional surgical methods such as simple excision of pterygium is high. In recent years, amniotic membrane transplantation, autologous limbal stem cell transplantation, application of mitomycin (MMC) and some other methods become commonly used. Autologous limbal stem cell transplantation is being most widely used. Pterygium has a close relationship with dry eye, and dry eye is one of the important reasons for its recurrence. Different surgical methods have different effects on postoperative tear film. This review will summarize the recent points.","PeriodicalId":342661,"journal":{"name":"Ocular Surface Diseases - Some Current Date on Tear Film Problem and Keratoconic Diagnosis","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122259148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular Genetics of Keratoconus: Clinical Implications 圆锥角膜的分子遗传学:临床意义
Yu Meng Wang, C. Pang
{"title":"Molecular Genetics of Keratoconus: Clinical Implications","authors":"Yu Meng Wang, C. Pang","doi":"10.5772/intechopen.90623","DOIUrl":"https://doi.org/10.5772/intechopen.90623","url":null,"abstract":"Occurrence of keratoconus is pan-ethnic with reported prevalence ranging widely from 1:400 to about 1:8000, higher in Asian than Western populations. Its genetics is complex with undefined pattern of inheritance. Familial traits are also known. More than 50 gene loci and 200 variants are associated with keratoconus, some through association studies with quantitative traits of cornea features including curvature and central thickness. Environmental, behavioral, and epigenetic factors are also involved in the etiology, likely interactively with genetic susceptibility. Regardless of sex and age of disease onset, clinical courses and responses to treatment vary. Keratoconus is a major cause of cornea transplantation and is potentially blinding. Currently collagen cross-linking provides effective treatment although responses from some patients can be unpredictable with complications. Early diagnosis is vital to obtain good treatment outcome, but in many patients early signs and symptoms are not obvious. While there are potential biomarkers, reliable pre-symptomatic detection and prediction of treatment response may require multitude of gene variants, cornea properties, and external risk factors.","PeriodicalId":342661,"journal":{"name":"Ocular Surface Diseases - Some Current Date on Tear Film Problem and Keratoconic Diagnosis","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128668546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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