发布求助
文献互助 智能选刊 最新文献

International contact lens clinic (New York, N.Y.)最新文献

筛选
英文 中文
So, what is the highest attainable Dk/L? 那么能达到的最高Dk/L是多少呢?
International contact lens clinic (New York, N.Y.) Pub Date : 1999-01-01 DOI: 10.1016/S0892-8967(99)00010-3
Richard M. Hill PhD (OD, Contributing Editor)
{"title":"So, what is the highest attainable Dk/L?","authors":"Richard M. Hill PhD (OD, Contributing Editor)","doi":"10.1016/S0892-8967(99)00010-3","DOIUrl":"10.1016/S0892-8967(99)00010-3","url":null,"abstract":"","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 1","pages":"Pages 21-22"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(99)00010-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"56189343","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
Key factors for radiuscope measurement accuracy: including an improved lens mount design 提高放射镜测量精度的关键因素:包括改进的镜头卡座设计
International contact lens clinic (New York, N.Y.) Pub Date : 1998-11-01 DOI: 10.1016/S0892-8967(98)00039-X
Charles W McMonnies MSc (FAAO)
{"title":"Key factors for radiuscope measurement accuracy: including an improved lens mount design","authors":"Charles W McMonnies MSc (FAAO)","doi":"10.1016/S0892-8967(98)00039-X","DOIUrl":"10.1016/S0892-8967(98)00039-X","url":null,"abstract":"<div><p>The importance of practitioners being able to measure back optic zone radius in verifying rigid gas permeable contact lenses is emphasized. Despite improved standards of manufacturing, errors can occur, and the capacity to verify lenses can be crucial to effective management, especially when new rigid gas permeable materials with unproven stability characteristics are used. Circumstances under which back optic zone radius discrepancies can cause frustration to both patient and practitioner are analyzed as the basis for illustrating the value of either problem anticipation and prevention, or recognition and resolution. Procedures that increase the accuracy of radiuscope measurements are described, including the use of a new lens mount design. The psychology of contact lens verification measurements is discussed, with consideration of procedures that help reduce conflict between laboratory and practitioner on the occasion of questionable quality control.</p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"25 6","pages":"Pages 158-165"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(98)00039-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"56188616","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: 2
Accuracy of the EyeSys 2000 in measuring surface elevation of calibrated aspheres eyeesys 2000测量标定球面表面高程的精度
International contact lens clinic (New York, N.Y.) Pub Date : 1998-11-01 DOI: 10.1016/S0892-8967(99)00005-X
Douglas G Horner PhD (OD, FAAO), Thomas O Salmon (OD, FAAO)
{"title":"Accuracy of the EyeSys 2000 in measuring surface elevation of calibrated aspheres","authors":"Douglas G Horner PhD (OD, FAAO),&nbsp;Thomas O Salmon (OD, FAAO)","doi":"10.1016/S0892-8967(99)00005-X","DOIUrl":"10.1016/S0892-8967(99)00005-X","url":null,"abstract":"<div><p>This article examines the accuracy of the EyeSys 2000 videokeratoscope in measuring aspheric surfaces for calculation of the wavefront aberrations of the anterior cornea. Six rotationally symmetric aspheric surfaces were measured. The surface elevation was computed from the normal measurement files. Both elevation error and relative error were computed from the average of the three maps. The root-mean-square errors for the various surfaces ranged from 1.48 to 6.55 microns, with less error on the oblate and spherical surfaces. The error found was very systematic, increasing monotonically toward the periphery. The article includes a strategy to compensate for the systematic error to meet the required 0.5-micron accuracy needed. An equation was developed that used only the apical radius and shape factor, which improved the accuracy to the required 0.5-micron level.</p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"25 6","pages":"Pages 171-177"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(99)00005-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"56189318","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: 6
Product review 产品评论
International contact lens clinic (New York, N.Y.) Pub Date : 1998-11-01 DOI: 10.1016/S0892-8967(99)00007-3
{"title":"Product review","authors":"","doi":"10.1016/S0892-8967(99)00007-3","DOIUrl":"https://doi.org/10.1016/S0892-8967(99)00007-3","url":null,"abstract":"","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"25 6","pages":"Pages 155-157"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(99)00007-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137089618","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
Index 指数
International contact lens clinic (New York, N.Y.) Pub Date : 1998-11-01 DOI: 10.1016/S0892-8967(99)00008-5
{"title":"Index","authors":"","doi":"10.1016/S0892-8967(99)00008-5","DOIUrl":"https://doi.org/10.1016/S0892-8967(99)00008-5","url":null,"abstract":"","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"25 6","pages":"Pages 185-188"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(99)00008-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137089619","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
Trapezoidal keratotomy: a contact lens case 梯形角膜切开术:一个隐形眼镜案例
International contact lens clinic (New York, N.Y.) Pub Date : 1998-11-01 DOI: 10.1016/S0892-8967(98)00040-6
Maria L. Miranda (OD)
{"title":"Trapezoidal keratotomy: a contact lens case","authors":"Maria L. Miranda (OD)","doi":"10.1016/S0892-8967(98)00040-6","DOIUrl":"10.1016/S0892-8967(98)00040-6","url":null,"abstract":"<div><p><span>Incisional refractive surgery for the correction of </span>astigmatism<span>, introduced by Ruiz in the 1980s, was a milestone for the now more sophisticated refractive surgery procedures. Patients who underwent this pioneering technique often suffered from numerous complications, eventually resulting in the need for vision correction with either further surgery or rigid contact lenses. A contact lens case report of one patient, whose procedure resulted in highly irregular and astigmatic corneas, is presented along with an overview of the original Ruiz astigmatic keratotomy technique. This case—as most post-surgical contact lens fitting cases are—was challenging, but resulted in remarkable improvement in the vision quality and lens comfort of the patient.</span></p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"25 6","pages":"Pages 178-181"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(98)00040-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"56188723","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
Effects of rigid contact lens truncation on oxygen access to the central cornea under static and dynamic conditions 静态和动态条件下刚性隐形眼镜截短对中央角膜供氧的影响
International contact lens clinic (New York, N.Y.) Pub Date : 1998-11-01 DOI: 10.1016/S0892-8967(98)00038-8
Barbara A. Fink PhD (OD) , Bradley J. Smith MS (OD) , Richard M. Hill PhD (OD) , Lisa A. Jones PhD
{"title":"Effects of rigid contact lens truncation on oxygen access to the central cornea under static and dynamic conditions","authors":"Barbara A. Fink\u0000 PhD (OD) ,&nbsp;Bradley J. Smith MS (OD) ,&nbsp;Richard M. Hill PhD (OD) ,&nbsp;Lisa A. Jones PhD","doi":"10.1016/S0892-8967(98)00038-8","DOIUrl":"10.1016/S0892-8967(98)00038-8","url":null,"abstract":"<div><p><span>Truncation is most commonly used for stabilization of bifocal and toric front surface lenses. Lenses with small edge defects also can be truncated and polished rather than being discarded. The purpose of this study was to determine whether corneal physiology is compromised when truncated lenses are worn. Contact lenses were manufactured with three amounts of truncation (0, 0.2, and 0.4 mm) in two contact lens materials (polymethylmethacrylate and itabisfluorofocon A). All lenses were fitted “on K” on the right eye of each of six subjects, with all other parameters kept constant. As expected, central corneal oxygen uptake rates measured with the itabisfluorofocon A material were significantly lower, indicating less </span>hypoxic stress<span> or oxygen deprivation, than those measured with polymethylmethacrylate across conditions (nonblink and blink) and amounts of truncation. No significant differences in central corneal oxygen uptake were found among amounts of truncation across conditions and materials.</span></p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"25 6","pages":"Pages 166-170"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(98)00038-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"56188487","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: 2
Dk/l and corneal hypoxia: part 2. needs still unmet Dk/l与角膜缺氧:第2部分。需求仍未得到满足
International contact lens clinic (New York, N.Y.) Pub Date : 1998-11-01 DOI: 10.1016/S0892-8967(99)00004-8
Richard M Hill PhD (OD, Contributing Editor)
{"title":"Dk/l and corneal hypoxia: part 2. needs still unmet","authors":"Richard M Hill PhD (OD, Contributing Editor)","doi":"10.1016/S0892-8967(99)00004-8","DOIUrl":"10.1016/S0892-8967(99)00004-8","url":null,"abstract":"","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"25 6","pages":"Pages 182-183"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(99)00004-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"56189285","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
Dk/L and corneal hypoxia: part 1. the rising rate of exchange Dk/L与角膜缺氧:第1部分。汇率上升
International contact lens clinic (New York, N.Y.) Pub Date : 1998-09-01 DOI: 10.1016/S0892-8967(98)00034-0
Richard M Hill PhD (OD, Contributing Editor)
{"title":"Dk/L and corneal hypoxia: part 1. the rising rate of exchange","authors":"Richard M Hill PhD (OD, Contributing Editor)","doi":"10.1016/S0892-8967(98)00034-0","DOIUrl":"10.1016/S0892-8967(98)00034-0","url":null,"abstract":"<div><p>Recently, the ongoing drive for still higher lens transmissibilities (Dk/L) has reached new levels of success. Emerging hybrids (e.g., “highly permeable hydrogel” materials<span>1</span>) showing the potential for Dk/Ls of 100 × 10<sup>−9</sup> (cm/sec) (mL O<sub>2</sub>/mL mm/Hg), and possibly higher, are joined by evolving generations of rigid gas permeable (RGP) lenses now challenging the “200 barrier” of transmissibility.<span>2</span></p><p>But, with these higher Dk/Ls has come a clearer view of the cornea’s responses to more moderate realms of hypoxia and what transmissibility investments may be required to reduce those chronic levels still further.</p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"25 5","pages":"Pages 149-150"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(98)00034-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"56188774","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
Methods for determining ultraviolet transmission of UV-blocking contact lenses 防紫外线隐形眼镜紫外线透射率的测定方法
International contact lens clinic (New York, N.Y.) Pub Date : 1998-09-01 DOI: 10.1016/S0892-8967(98)00037-6
Hermann Faubl, Michael H. Quinn
{"title":"Methods for determining ultraviolet transmission of UV-blocking contact lenses","authors":"Hermann Faubl,&nbsp;Michael H. Quinn","doi":"10.1016/S0892-8967(98)00037-6","DOIUrl":"10.1016/S0892-8967(98)00037-6","url":null,"abstract":"<div><p>Ultraviolet (UV) transmission spectra of UV-absorbing hydrogel contact lenses have been reported in the literature. Few of these studies were done following ANSI or ISO specified procedures. These published procedures do specify an integrating sphere in the detector system and a beam size, but not other instrument settings such as slit width, spectral smoothing functions, and scan speed. This work, done with Acuvue<sup>R</sup> and Precision UV<sup>TM</sup> contact lenses, shows that an integrating sphere is needed to ensure the accuracy of the data. A smaller beam size than specified was required to obtain accurate spectra. A slit width larger than recommended by the spectrophotometer’s manufacturer was needed to increase precision. Spectra results were unaffected by scan speed and spectral smoothing settings.</p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"25 5","pages":"Pages 142-148"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(98)00037-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"56188378","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: 12
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信