Pub Date : 1973-12-01DOI: 10.1097/00006324-197312000-00005
B Wick
ABSTRACT The design of aniseikonic corrections is discussed and tables are presented which simplify the procedure consistent with laws requiring “impact‐resistant” lenses for all patients. Evaluated are effects on magnification of lens vertex distance, base curves, and thickness changes. The tables presented can also be used to evaluate and reduce inadvertent introduction of aniseikonia due to variation in lens thickness or curvature when a patient's lens(es) are replaced.
{"title":"Iseikonic considerations for today's eyewear.","authors":"B Wick","doi":"10.1097/00006324-197312000-00005","DOIUrl":"https://doi.org/10.1097/00006324-197312000-00005","url":null,"abstract":"ABSTRACT The design of aniseikonic corrections is discussed and tables are presented which simplify the procedure consistent with laws requiring “impact‐resistant” lenses for all patients. Evaluated are effects on magnification of lens vertex distance, base curves, and thickness changes. The tables presented can also be used to evaluate and reduce inadvertent introduction of aniseikonia due to variation in lens thickness or curvature when a patient's lens(es) are replaced.","PeriodicalId":78011,"journal":{"name":"American journal of optometry and archives of American Academy of Optometry","volume":"50 12","pages":"952-67"},"PeriodicalIF":0.0,"publicationDate":"1973-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-197312000-00005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15622390","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}
Pub Date : 1973-12-01DOI: 10.1097/00006324-197312000-00009
A N Haffner
{"title":"Defining optometric clinical service delivery models in a public health context.","authors":"A N Haffner","doi":"10.1097/00006324-197312000-00009","DOIUrl":"https://doi.org/10.1097/00006324-197312000-00009","url":null,"abstract":"","PeriodicalId":78011,"journal":{"name":"American journal of optometry and archives of American Academy of Optometry","volume":"50 12","pages":"987-90"},"PeriodicalIF":0.0,"publicationDate":"1973-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-197312000-00009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15622393","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}
Pub Date : 1973-12-01DOI: 10.1097/00006324-197312000-00002
S Appelle
ABSTRACT Luminance thresholds were obtained for narrow bars of light in vertical, horizontal, left oblique, and right oblique orientations. From 5° to 60° into the periphery, thresholds were significantly higher for the stimuli in oblique orientations. This situation remained in both light and dark‐adapted conditions, suggesting the problem pervades both rod and cone visual systems.
{"title":"Orientation of test-object affects visibility throughout visual field.","authors":"S Appelle","doi":"10.1097/00006324-197312000-00002","DOIUrl":"https://doi.org/10.1097/00006324-197312000-00002","url":null,"abstract":"ABSTRACT Luminance thresholds were obtained for narrow bars of light in vertical, horizontal, left oblique, and right oblique orientations. From 5° to 60° into the periphery, thresholds were significantly higher for the stimuli in oblique orientations. This situation remained in both light and dark‐adapted conditions, suggesting the problem pervades both rod and cone visual systems.","PeriodicalId":78011,"journal":{"name":"American journal of optometry and archives of American Academy of Optometry","volume":"50 12","pages":"940-3"},"PeriodicalIF":0.0,"publicationDate":"1973-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-197312000-00002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15622387","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}
Pub Date : 1973-12-01DOI: 10.1097/00006324-197312000-00003
J E Letourneau, G Lavoie
ABSTRACT Paranoid schizophrenics were compared with simple schizophrenics on the Poggendorff illusion. Results show that the illusion is smaller among paranoid schizophrenics.
{"title":"The Poggendorff illusion among paranoid and simple schizophrenic patients.","authors":"J E Letourneau, G Lavoie","doi":"10.1097/00006324-197312000-00003","DOIUrl":"https://doi.org/10.1097/00006324-197312000-00003","url":null,"abstract":"ABSTRACT Paranoid schizophrenics were compared with simple schizophrenics on the Poggendorff illusion. Results show that the illusion is smaller among paranoid schizophrenics.","PeriodicalId":78011,"journal":{"name":"American journal of optometry and archives of American Academy of Optometry","volume":"50 12","pages":"944-8"},"PeriodicalIF":0.0,"publicationDate":"1973-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-197312000-00003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15622388","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}
Pub Date : 1973-12-01DOI: 10.1097/00006324-197312000-00006
G Hung, E Marg
ABSTRACT In a computerized eye examination, there are times when the examiner is not at the patient's side. Hence, it was anticipated that non‐verbal indicators (i.e., EKG, blink, GSR) might be used to aid the computer in converging upon the proper lens correction more expediently. During actual clinical examinations at the University of California, Berkeley, EKG, blink, GSR, arm acceleration, and respiration measurements were made on 38 patients to determine if there is any correlation between any of the above and the patient's uncertainty about his/her response as indicated by reaction time and tone of voice. It was found that the EKG (four patients) and respiratory rate (four patients) were usually steady and rather insensitive to uncertainty of response. For three out of ten patients tested in the blink response, a rough correlation was found. The other seven patients produced non‐correlating responses. For twelve patients tested, the GSR was found to be an unreliable indicator of uncertainty. Further, eight patients exhibited little or no arm acceleration movements during the attentive portions of the eye examinations.
{"title":"Computer-assisted eye examination. 3. Physiological indices for subjective refraction.","authors":"G Hung, E Marg","doi":"10.1097/00006324-197312000-00006","DOIUrl":"https://doi.org/10.1097/00006324-197312000-00006","url":null,"abstract":"ABSTRACT In a computerized eye examination, there are times when the examiner is not at the patient's side. Hence, it was anticipated that non‐verbal indicators (i.e., EKG, blink, GSR) might be used to aid the computer in converging upon the proper lens correction more expediently. During actual clinical examinations at the University of California, Berkeley, EKG, blink, GSR, arm acceleration, and respiration measurements were made on 38 patients to determine if there is any correlation between any of the above and the patient's uncertainty about his/her response as indicated by reaction time and tone of voice. It was found that the EKG (four patients) and respiratory rate (four patients) were usually steady and rather insensitive to uncertainty of response. For three out of ten patients tested in the blink response, a rough correlation was found. The other seven patients produced non‐correlating responses. For twelve patients tested, the GSR was found to be an unreliable indicator of uncertainty. Further, eight patients exhibited little or no arm acceleration movements during the attentive portions of the eye examinations.","PeriodicalId":78011,"journal":{"name":"American journal of optometry and archives of American Academy of Optometry","volume":"50 12","pages":"968-77"},"PeriodicalIF":0.0,"publicationDate":"1973-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-197312000-00006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15694292","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}
Pub Date : 1973-12-01DOI: 10.1097/00006324-197312000-00004
R M Hill, J E Schultz, G R Thayer
{"title":"Can a \"hard\" contact lens material transmit adequate oxygen?","authors":"R M Hill, J E Schultz, G R Thayer","doi":"10.1097/00006324-197312000-00004","DOIUrl":"https://doi.org/10.1097/00006324-197312000-00004","url":null,"abstract":"","PeriodicalId":78011,"journal":{"name":"American journal of optometry and archives of American Academy of Optometry","volume":"50 12","pages":"949-51"},"PeriodicalIF":0.0,"publicationDate":"1973-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-197312000-00004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15622389","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}
Pub Date : 1973-12-01DOI: 10.1097/00006324-197312000-00007
H D Inns
ABSTRACT The Griffin flexible contract lens is described, and the methods for its use are discussed.
{"title":"The Griffin lens.","authors":"H D Inns","doi":"10.1097/00006324-197312000-00007","DOIUrl":"https://doi.org/10.1097/00006324-197312000-00007","url":null,"abstract":"ABSTRACT The Griffin flexible contract lens is described, and the methods for its use are discussed.","PeriodicalId":78011,"journal":{"name":"American journal of optometry and archives of American Academy of Optometry","volume":"50 12","pages":"977-83"},"PeriodicalIF":0.0,"publicationDate":"1973-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-197312000-00007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15622391","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":"Juvenile glaucoma: its incidence and detection, case studies.","authors":"S H Schiffman","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":78011,"journal":{"name":"American journal of optometry and archives of American Academy of Optometry","volume":"50 12","pages":"983-7"},"PeriodicalIF":0.0,"publicationDate":"1973-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15622392","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}
Pub Date : 1973-12-01DOI: 10.1097/00006324-197312000-00001
V V Krishnan, F Farazian, L Stark
ABSTRACT The latency of the fusional vergence or the disparity vergence system has been found to vary from 130 to 250 milliseconds for unpredictable inputs. It has also been established that there is a prediction operator in the system which seems most effective around the 0.5 Hz region. The experiments also indicate a hitherto unnoticed difference between the convergence and the divergence latencies, with the latter being shorter. Similarities between the accommodation and the fusional vergence systems in terms of their latency and prediction characteristics are indicated by the results, but further work is necessary to test these correlations.
{"title":"An analysis of latencies and prediction in the fusional vergence system.","authors":"V V Krishnan, F Farazian, L Stark","doi":"10.1097/00006324-197312000-00001","DOIUrl":"https://doi.org/10.1097/00006324-197312000-00001","url":null,"abstract":"ABSTRACT The latency of the fusional vergence or the disparity vergence system has been found to vary from 130 to 250 milliseconds for unpredictable inputs. It has also been established that there is a prediction operator in the system which seems most effective around the 0.5 Hz region. The experiments also indicate a hitherto unnoticed difference between the convergence and the divergence latencies, with the latter being shorter. Similarities between the accommodation and the fusional vergence systems in terms of their latency and prediction characteristics are indicated by the results, but further work is necessary to test these correlations.","PeriodicalId":78011,"journal":{"name":"American journal of optometry and archives of American Academy of Optometry","volume":"50 12","pages":"933-9"},"PeriodicalIF":0.0,"publicationDate":"1973-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00006324-197312000-00001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15622386","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":"Dr. Carel C. Koch, November 23, 1896-November 3, 1973.","authors":"H B Peters","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":78011,"journal":{"name":"American journal of optometry and archives of American Academy of Optometry","volume":"50 11","pages":"851-2"},"PeriodicalIF":0.0,"publicationDate":"1973-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15689670","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}
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