{"title":"Complications with silicone lens wear.","authors":"B A Holden, D F Sweeney","doi":"10.1097/00006324-198809000-00014","DOIUrl":"https://doi.org/10.1097/00006324-198809000-00014","url":null,"abstract":"","PeriodicalId":7700,"journal":{"name":"American journal of optometry and physiological optics","volume":"65 9","pages":"765"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-198809000-00014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13609398","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":"Procedure for aligning nonius lines.","authors":"W. Larson","doi":"10.1097/00006324-198809000-00012","DOIUrl":"https://doi.org/10.1097/00006324-198809000-00012","url":null,"abstract":"","PeriodicalId":7700,"journal":{"name":"American journal of optometry and physiological optics","volume":"8 1","pages":"763-4"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90096429","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":"Extended wear contact lens movement under swimming pool conditions.","authors":"C B Diefenbach, P S Soni, B J Gillespie, N Pence","doi":"10.1097/00006324-198809000-00004","DOIUrl":"https://doi.org/10.1097/00006324-198809000-00004","url":null,"abstract":"<p><p>On site swimming pool studies have indicated that soft contact lenses adhere to the cornea when exposed to swimming pool water. It was the aim of this investigation to study, under controlled laboratory conditions, both the adherence of hydrophilic extended wear lenses and any changes in lens movement with exposure to swimming pool water. Normal saline and a hypotonic solution having a pH and osmolality identical to the pool water served as controls. Exposure to both swimming pool water and the hypotonic solution promptly caused both lenses to stop moving and adhere to the cornea. Notably, the instillation of normal saline also caused a dramatic decrease in lens movement for some subjects.</p>","PeriodicalId":7700,"journal":{"name":"American journal of optometry and physiological optics","volume":"65 9","pages":"710-6"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-198809000-00004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14318409","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 evaluation of the Non-Contact Tonometer Mark II.","authors":"B C Chauhan, D B Henson","doi":"10.1097/00006324-198809000-00010","DOIUrl":"https://doi.org/10.1097/00006324-198809000-00010","url":null,"abstract":"<p><p>The purpose of this investigation was to test the reliability of the American Optical Non-Contact Tonometer Mark II (NCT II) using the Goldmann Applanation Tonometer (GAT) as the validating instrument. The sample contained 102 consecutive patients from our University Eye Clinic, of whom one-half had 4 NCT II measurements first, followed by 4 GAT measurements; the other one-half had 4 GAT measurements first, followed by 4 NCT II measurements. No significant change in intraocular pressure (IOP) was noted over the measurement sequence with either instrument. There was no significant difference between paired NCT II and GAT readings when the NCT II was used first; however, a highly significant difference between paired readings was obtained when the GAT was used first, indicating that the GAT measurement produced a delayed reduction in the IOP. This effect did not occur with the NCT II. Although the NCT II is shown to have a good overall reliability when compared to the GAT in both protocols, the agreement between any two tonometers may be influenced greatly by the very process of taking a measurement and by the dynamic nature of the IOP.</p>","PeriodicalId":7700,"journal":{"name":"American journal of optometry and physiological optics","volume":"65 9","pages":"751-6"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-198809000-00010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14318412","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":"D-15 performance with short wavelength absorbing filters in normals.","authors":"S R Thomas, T K Kuyk","doi":"10.1097/00006324-198809000-00002","DOIUrl":"https://doi.org/10.1097/00006324-198809000-00002","url":null,"abstract":"<p><p>Short wavelength absorbing filters (SWAF's) have become very popular in the prescription and commercial sunglass markets. Like other chromatic filters SWAF's have the potential to alter color vision. Performance on the Farnsworth Panel D-15 (D-15) test was measured to determine whether any of 4 popular SWAF's, in the form of sunglasses, produced color vision changes in 22 color normal adults. Using standard illuminant C, observers were tested under the following conditions: wearing no filter, a 1.0 log unit neutral density filter (NDF), or one of the following SWAF's: Corning CPF 550; NolR Amber 40%; Blu Blocker; and Vuarnet 4006. In addition, the Vuarnets were tested outdoors in shaded daylight to determine the effects of increased illumination. The NDF served as the control and had no effect on D-15 performance. Compared to it, only the Blu Blockers and Vuarnets affected D-15 cap arrangements for these SWAF's significantly. Blu Blocker error patterns had no predominant axis, whereas the predominant axis of errors in both Vuarnet conditions was tritan. Results of quantitative analysis performed on three factors confirmed these findings and indicated the Blu Blockers and Vuarnet SWAF's caused moderate and moderate-to-severe levels of color confusion, respectively. Increasing the illumination level improved performance with the Vuarnets, but it remained significantly outside the normal range.</p>","PeriodicalId":7700,"journal":{"name":"American journal of optometry and physiological optics","volume":"65 9","pages":"697-702"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-198809000-00002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14317550","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":"Laser-assisted contact angle measurements.","authors":"J F Bush, J W Huff, D L MacKeen","doi":"10.1097/00006324-198809000-00006","DOIUrl":"https://doi.org/10.1097/00006324-198809000-00006","url":null,"abstract":"<p><p>A laser beam, aimed at the solid-liquid-air interface of a sessile drop on a contact lens, produces two lines of diffraction which are theoretically normal to the profile of the fluid and solid surfaces at the point of contact. In the present experiments, the beam and the diffraction patterns were projected on a flat screen perpendicular to the beam, and the angle was measured as a contact angle. The angle was measured on curved surfaces (contact lenses) of 6.5 to 8.9 mm radius and for each material studied, the angle: (1) was independent of the front surface radius, (2) was independent of droplet volume at 2 and 10 microliter, and (3) decreased with time after drop placement. The laser-derived measurements correlated well with contact angles measured by goniometry on contact lenses and a variety of other materials (r = 0.86; p less than 0.0001). Because the diffraction lines are straight and are generated at the point of contact, the angle formed by them is measured easily with a protractor, yielding a convenient and reproducible contact angle measurement. An application of the method was demonstrated by measuring contact angles for saline-containing 0 to 2% bovine serum albumin or bovine submaxillary mucin on Silafocon-A (Polycon II), Pasifocon C (Paragon EW), and polymethyl methacrylate (generic PMMA and Paragon 18) lenses. On each material, physiological concentrations of mucin, but not of albumin, significantly (p greater than 0.01) decreased contact angles by 8 to 15 degrees.(ABSTRACT TRUNCATED AT 250 WORDS)</p>","PeriodicalId":7700,"journal":{"name":"American journal of optometry and physiological optics","volume":"65 9","pages":"722-8"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-198809000-00006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14318411","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":"Undercorrection and myopia development.","authors":"J G Sivak","doi":"10.1097/00006324-198809000-00016","DOIUrl":"https://doi.org/10.1097/00006324-198809000-00016","url":null,"abstract":"","PeriodicalId":7700,"journal":{"name":"American journal of optometry and physiological optics","volume":"65 9","pages":"766"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-198809000-00016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14318416","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":"Stereopsis in presbyopes wearing monovision and simultaneous vision bifocal contact lenses.","authors":"E McGill, P Erickson","doi":"10.1097/00006324-198808000-00005","DOIUrl":"https://doi.org/10.1097/00006324-198808000-00005","url":null,"abstract":"<p><p>One of the advantages suggested for contact lens bifocals over monovision treatment of presbyopia is that there may be less impairment of binocular function. We evaluated nearpoint stereoposis on the Titmus stereotest for 10 presbyopic patients. Testing was done under five conditions; monovision and binocular correction with each of four marketed simultaneous bifocal contact lenses. Simultaneous vision bifocals tested produced at least as much reduction in stereopsis as monovision compared to baseline spectacle correction. Repeat testing of bifocal stereopsis with best near over-refraction suggested that a substantial portion of the stereo reduction could be attributed to insufficient effective adds with the bifocal contacts.</p>","PeriodicalId":7700,"journal":{"name":"American journal of optometry and physiological optics","volume":"65 8","pages":"619-26"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-198808000-00005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14308771","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":"Interprofessional perspectives on blindness and low vision.","authors":"W F Gallagher","doi":"10.1097/00006324-198808000-00002","DOIUrl":"https://doi.org/10.1097/00006324-198808000-00002","url":null,"abstract":"","PeriodicalId":7700,"journal":{"name":"American journal of optometry and physiological optics","volume":"65 8","pages":"603-5"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-198808000-00002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14390693","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":"Women optometry students: how qualified?","authors":"P. Kegel-Flom","doi":"10.1097/00006324-198808000-00012","DOIUrl":"https://doi.org/10.1097/00006324-198808000-00012","url":null,"abstract":"This study compares the academic and personal qualifications of women and men entering the University of Houston College of Optometry (UHCO) over a 6-year period, as well as the performance of these women and men throughout 4 years of optometry school. As predicted, women, as a group, presented somewhat higher grade point averages (GPA's) upon application to optometry, whereas men presented higher scores on science, especially physics, and math sections of the Optometry College Admission Test (OCAT). Women also scored significantly higher on an inventory of positive personality traits generally associated with achievement in higher education. Despite these differences, women and men performed at essentially equivalent levels throughout optometry school, both in the classroom and in the clinic. Women were under-represented as dropouts and over-represented as summa cum laude graduates; men received more clinical performance awards. In terms of personality traits, women were more similar to their male peers and female medical students than to college women in general. Strong motivation to achieve, independence, self-confidence, interpersonal skillfulness, and a sensitivity to others--traits generally associated with leadership--typified optometry students, especially women. These findings suggest that the increasing numbers of women graduates will bring to the profession young optometrists who are well qualified, not only to practice optometry, but also to fill positions of leadership in the profession.","PeriodicalId":7700,"journal":{"name":"American journal of optometry and physiological optics","volume":"4 1","pages":"666-73"},"PeriodicalIF":0.0,"publicationDate":"1988-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88099129","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}