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

{"title":"The “pe dk/l” and “pe dk”: part 3. multimaterial, multilayered oxygen pathways","authors":"Richard M Hill PhD (OD, Contributing Editor)","doi":"10.1016/S0892-8967(00)00022-5","DOIUrl":"10.1016/S0892-8967(00)00022-5","url":null,"abstract":"","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 4","pages":"Pages 104-105"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(00)00022-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21830772","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}

{"title":"Evaluation of two new soft contact lenses for correction of presbyopia: the Focus Progressives multifocal and the Acuvue Bifocal","authors":"Kay Fisher PhD (OD),&nbsp;Erich Bauman (OD),&nbsp;Joseph Schwallie MS (OD)","doi":"10.1016/S0892-8967(00)00029-8","DOIUrl":"10.1016/S0892-8967(00)00029-8","url":null,"abstract":"<div><p>The clinical performance of Focus Progressives multifocal contact lenses and Acuvue Bifocal contact lenses was evaluated in a group of 42 presbyopes, with equal numbers of individuals having low, medium, and high spectacle add requirements. Following visual performance assessment with an optimal sphero-cylinder spectacle refractive correction, each individual wore each of the two types of contact lenses in successive random order. Each type of lens was used in a daily-wear mode for a period of 7 to 12 days, with follow-up and/or refitting visits occurring after 2 to 5 days, and again after 4 to 7 days of attempted wear. Testing for all three forms of refractive correction encompassed Snellen acuities at distance and near, Bailey-Lovie acuities under high and/or low ambient illumination conditions at near, intermediate, and far viewing distances, stereoacuity, a timed visuomotor task (needle threading), apparent glare/flare, and the nearwork range of subjectively clear binocular vision. The contact lenses also were evaluated for handling, comfort, distance and near ghosting, subjective visual quality, acceptability for common tasks (e.g., using a phone directory), and personal preferences.</p><p>As might be expected, distance and near acuity, stereoacuity, and visuomotor task performance were somewhat better with sphero-cylinder spectacle correction than with either of the two types of contact lenses. However, several performance differences between the multifocal and bifocal lenses were noted. The Focus Progressives lenses provided significantly better distance acuity under both high and low illumination conditions, and received significantly higher ratings for visual quality (overall and at distance), comfort, and handling. The Focus Progressives lenses were preferred 5:1 over the Acuvue Bifocal lenses. No differences existed between the lenses with respect to near visual acuities, the perceived quality of the near vision, the nearpoint binocular range, stereoacuity, or the acceptability of vision for common nearwork tasks. The results suggest that although both types of lenses afford presbyopes a viable alternative to spectacles, the Focus Progressives lens is superior in many ways to the Acuvue Bifocal lens.</p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 4","pages":"Pages 92-103"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(00)00029-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21830773","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}

{"title":"Characteristics of fungal growth in soft contact lenses","authors":"Jennifer Chen,&nbsp;Tony Fraser,&nbsp;Damien Fisher,&nbsp;Zeinab Khalil,&nbsp;Michael Collins,&nbsp;Louise Hafner","doi":"10.1016/S0892-8967(00)00026-2","DOIUrl":"10.1016/S0892-8967(00)00026-2","url":null,"abstract":"<div><p>Six fungal species (<em>Fusarium</em> sp, <span><em>Exophiala</em><em> jeanselmei</em></span>, <em>Penicillium</em> spp, <span><em>Aspergillus niger</em></span>, <em>Paecilomyces</em> spp, and <em>Alternaria</em><span> spp) were used to inoculate soft contact lenses. Four types of soft lenses were used: high-water (58%) and low-water (38%) content lenses and lenses that were unworn or worn for 1 day. The fungi displayed a range of macroscopic and microscopic features that allowed differentiation of species. There was no statistically significant effect of lens water content on growth rate and only </span><em>Penicillium</em> spp showed significantly higher growth for worn versus unworn lenses. A number of the fungi showed secretions, thought to be enzymes, which potentially aid in the process of lens penetration.</p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 4","pages":"Pages 84-91"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(00)00026-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21830771","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}

{"title":"Two different concentrations of Opti-Plus® compared for daily protein cleaning of a disposable contact lens","authors":"Russell Lowe,&nbsp;M.-L.Chantal Coles,&nbsp;Noel A Brennan","doi":"10.1016/S0892-8967(00)00023-7","DOIUrl":"10.1016/S0892-8967(00)00023-7","url":null,"abstract":"<div><p>The aim of this study was to compare the relative safety, efficacy, comfort, and convenience of the daily use of a pancreatin-based, liquid enzyme daily protein remover (DPR) at two different concentrations for protein cleaning of Group IV disposable contact lenses.</p><p>We enrolled 73 subjects (146 eyes) into a 3-month, randomized, investigator-masked clinical study comparing a test regimen of DPR (Opti-Plus® or Supra-Clens®) containing four drops per 10 mL of multifunctional solution (Opti-Free®) to a control regimen containing only two drops per 10 mL of multifunctional solution.</p><p>The liquid enzyme regimens provided safe and effective protein cleaning of the Group IV lenses with no additional cleaning benefit observed at the higher concentration. Three convenience parameters (steps required, time required, and dexterity required) had mean improvements for both regimens at Day 90 compared to baseline (Day 0). Thus, subjects perceived the DPR regimen as more convenient than their pre-study regimen, which required weekly use of an enzymatic cleaning tablet. Comfort remained consistent with baseline levels throughout the study regardless of concentration of DPR for 72 of 73 subjects.</p><p>This study provided evidence that the daily use of a low concentration pancreatin enzymatic solution admixed with multifunctional solution is well tolerated and provides a more convenient method of achieving simultaneous disinfection and protein cleaning during contact lens storage than enzyme tablets.</p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 3","pages":"Pages 66-75"},"PeriodicalIF":0.0,"publicationDate":"1999-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(00)00023-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21707015","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}

{"title":"Vision care professions—going down the wrong path?","authors":"Gerald E. Lowther PhD (OD, co-editor)","doi":"10.1016/S0892-8967(00)00024-9","DOIUrl":"10.1016/S0892-8967(00)00024-9","url":null,"abstract":"","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 3","pages":"Page 52"},"PeriodicalIF":0.0,"publicationDate":"1999-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(00)00024-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21707012","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}

{"title":"Accelerated photostability testing of precision UVTM contact lenses","authors":"Michael H Quinn,&nbsp;Hermann Faubl","doi":"10.1016/S0892-8967(99)00022-X","DOIUrl":"10.1016/S0892-8967(99)00022-X","url":null,"abstract":"<div><p>Precision UV^TM contact lenses were photoaged beyond their expected lifetime in an accelerated manner with a SUNTEST® CPS⁺ system, which is a solar spectrum equivalent. Ultraviolet spectra of lenses irradiated for 30 h in saline at 41°C and 44°C at the highest power setting were statistically indistinguishable from those measured prior to the exposure. In a similar experiment run at 79°C, the UVB range of the spectra showed small but statistically significant differences, whereas the UVA range of the spectra were not distinguishable. Lenses photoaged at half power and twice the time at 43°C gave UV spectra that could be distinguished. Refractive indices of lenses were indistinguishable before and after irradiation. Eluted materials could not be detected in the saline used to maintain lenses in any irradiation experiment. Lens parameters and water contents remained within manufacturing specifications before and after irradiation.</p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 3","pages":"Pages 56-65"},"PeriodicalIF":0.0,"publicationDate":"1999-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(99)00022-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21707013","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}

{"title":"The “pe Dk/L” and “pe Dk”: part 2. single material oxygen pathways","authors":"Richard M Hill PhD (OD),&nbsp;Contributing Editor","doi":"10.1016/S0892-8967(99)00026-7","DOIUrl":"10.1016/S0892-8967(99)00026-7","url":null,"abstract":"","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 3","pages":"Pages 76-77"},"PeriodicalIF":0.0,"publicationDate":"1999-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(99)00026-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21707016","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}

{"title":"Focus progressives—CIBA vision’s new bifocal soft lens","authors":"N.Rex Ghormley (OD, FAAO, co-editor)","doi":"10.1016/S0892-8967(99)00025-5","DOIUrl":"10.1016/S0892-8967(99)00025-5","url":null,"abstract":"","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 3","pages":"Pages 53-55"},"PeriodicalIF":0.0,"publicationDate":"1999-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(99)00025-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"56189030","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}

{"title":"Clinical implications","authors":"Anthony Cullen PhD, DSc (OD)","doi":"10.1016/S0892-8967(00)00031-6","DOIUrl":"10.1016/S0892-8967(00)00031-6","url":null,"abstract":"","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 3","pages":"Page 64"},"PeriodicalIF":0.0,"publicationDate":"1999-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(00)00031-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21707014","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}

{"title":"Spontaneous blink rate of a normal population sample","authors":"Mosa’ad Al-Abdulmunem PhD (FAAO),&nbsp;Stella T Briggs PhD","doi":"10.1016/S0892-8967(99)00016-4","DOIUrl":"10.1016/S0892-8967(99)00016-4","url":null,"abstract":"<div><p>Blinking plays the essential role of spreading the pre-corneal tear film. Improper blinking can lead to dry eye, which can be a severe problem for contact lens wearers. The blink rate of 91 subjects was measured under controlled experimental conditions. While the mean blink rate was 26.13 blinks/min, there was a marked intersubject variation. In a set of 19 subjects taken from the main sample, the blink rate measured under two other experimental conditions showed that the blink rate was high during conversation and then decreased during a classroom examination.</p></div>","PeriodicalId":80286,"journal":{"name":"International contact lens clinic (New York, N.Y.)","volume":"26 2","pages":"Pages 29-32"},"PeriodicalIF":0.0,"publicationDate":"1999-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0892-8967(99)00016-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"56188879","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}