{"title":"sv 2M CHARTS","description":"","products":[{"product_id":"logmar-2m-etdrs-chart-1-revised","title":"Logmar 2m ETDRS Chart 1 Revised","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 2m ETDRS Chart 1 Revised\n\n2 metre viewing.\n Acuity range 20m to 1M.\n\nWill fit illuminated cabinets \u003ca href=\"%%+logmar-chart-slim-cabinet-sussex-p-5539.html%%-\"\u003eSDT-392-LSV\u003c\/a\u003e and \u003ca href=\"%%+precision-vision-logmar-cabinet-p-5544.html%%-\"\u003eSDT-396-LPV\u003c\/a\u003e\n\nThese revised charts incorporate a slight change in the difficulty score for each of the ten Sloan letters derived from the best visual acuity examinations of 7420 eyes during the ETDRS study. The original charts difficulty scores were derived from the examination of 234 eyes. In addition to the revised arrangement of letters which resulted in the ultimate homogeneity of difficulty per line, the three charts are balanced so that in each\u003cbr\u003e\nchart the ten letters are represented\u003cspan lang=\"en-gb\"\u003e \u003c\/span\u003eat least once in every position.\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796763107671,"sku":"SV-SDT-213-5","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-213-5.jpg?v=1781603757"},{"product_id":"logmar-2m-etdrs-chart-2-revised","title":"Logmar 2m ETDRS Chart 2 Revised","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 2m ETDRS Chart 2 Revised\n\n2 metre viewing.\n Acuity range 20m to 1M.\n\nWill fit illuminated cabinets \u003ca href=\"%%+logmar-chart-slim-cabinet-sussex-p-5539.html%%-\"\u003eSDT-392-LSV\u003c\/a\u003e and \u003ca href=\"%%+precision-vision-logmar-cabinet-p-5544.html%%-\"\u003eSDT-396-LPV\u003c\/a\u003e\n\nThese revised charts incorporate a slight change in the difficulty score for each of the ten Sloan letters derived from the best visual acuity examinations of 7420 eyes during the ETDRS study. The original charts difficulty scores were derived from the examination of 234 eyes. In addition to the revised arrangement of letters which resulted in the ultimate homogeneity of difficulty per line, the three charts are balanced so that in each\u003cbr\u003e\nchart the ten letters are represented\u003cspan lang=\"en-gb\"\u003e \u003c\/span\u003eat least once in every position.\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796763140439,"sku":"SV-SDT-213-6","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-213-6.jpg?v=1781603754"},{"product_id":"logmar-2m-etdrs-chart-3-revised","title":"Logmar 2m ETDRS Chart 3 Revised","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 2m ETDRS Chart 3 Revised\n\n2 metre viewing.\n Acuity range 20m to 1M.\n\nWill fit illuminated cabinets \u003ca href=\"%%+logmar-chart-slim-cabinet-sussex-p-5539.html%%-\"\u003eSDT-392-LSV\u003c\/a\u003e and \u003ca href=\"%%+precision-vision-logmar-cabinet-p-5544.html%%-\"\u003eSDT-396-LPV\u003c\/a\u003e\n\nThese revised charts incorporate a slight change in the difficulty score for each of the ten Sloan letters derived from the best visual acuity examinations of 7420 eyes during the ETDRS study. The original charts difficulty scores were derived from the examination of 234 eyes. In addition to the revised arrangement of letters which resulted in the ultimate homogeneity of difficulty per line, the three charts are balanced so that in each\u003cbr\u003e\nchart the ten letters are represented\u003cspan lang=\"en-gb\"\u003e \u003c\/span\u003eat least once in every position.\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796763173207,"sku":"SV-SDT-213-7","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-213-7.jpg?v=1781603755"},{"product_id":"logmar-2m-etdrs-chart-r-original","title":"Logmar 2m ETDRS Chart R Original","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 2m ETDRS Chart R Original\n\n2 metre viewing.\n Acuity range 20m to 1M.\n\nWill fit illuminated cabinets \u003ca href=\"%%+logmar-chart-slim-cabinet-sussex-p-5539.html%%-\"\u003eSDT-392-LSV\u003c\/a\u003e and \u003ca href=\"%%+precision-vision-logmar-cabinet-p-5544.html%%-\"\u003eSDT-396-LPV\u003c\/a\u003e\n\nThese Original Charts - Are the only standardised format acceptable in studies sponsored by the American National Eye Institute. They were designed for use in clinical studies and low vision evaluations where accurate, repeatable visual acuity measurements are required. The lines are of equal difficulty and geometrical Progressions, in letter size, from line to line.\u003cbr\u003e\n\u003cb\u003eRevised Charts are now also available.\u003c\/b\u003e\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796763205975,"sku":"SV-SDT-213-8","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-213-8.jpg?v=1781603754"},{"product_id":"logmar-2m-etdrs-chart-1-original","title":"Logmar 2m ETDRS Chart 1 Original","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 2m ETDRS Chart 1 Original\n\n2 metre viewing.\n Acuity range 20m to 1M.\n\nWill fit illuminated cabinets \u003ca href=\"%%+logmar-chart-slim-cabinet-sussex-p-5539.html%%-\"\u003eSDT-392-LSV\u003c\/a\u003e and \u003ca href=\"%%+precision-vision-logmar-cabinet-p-5544.html%%-\"\u003eSDT-396-LPV\u003c\/a\u003e\n\nThese Original Charts - Are the only standardised format acceptable in studies sponsored by the American National Eye Institute. They were designed for use in clinical studies and low vision evaluations where accurate, repeatable visual acuity measurements are required. The lines are of equal difficulty and geometrical Progressions, in letter size, from line to line.\u003cbr\u003e\n\u003cb\u003eRevised Charts are now also available.\u003c\/b\u003e\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796763238743,"sku":"SV-SDT-213-9","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-213-9.jpg?v=1781603756"},{"product_id":"logmar-2m-etdrs-chart-2-original","title":"Logmar 2m ETDRS Chart 2 Original","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 2m ETDRS Chart 2 Original\n\n2 metre viewing.\n Acuity range 20m to 1M.\n\nWill fit illuminated cabinets \u003ca href=\"%%+logmar-chart-slim-cabinet-sussex-p-5539.html%%-\"\u003eSDT-392-LSV\u003c\/a\u003e and \u003ca href=\"%%+precision-vision-logmar-cabinet-p-5544.html%%-\"\u003eSDT-396-LPV\u003c\/a\u003e\n\nThese Original Charts - Are the only standardised format acceptable in studies sponsored by the American National Eye Institute. They were designed for use in clinical studies and low vision evaluations where accurate, repeatable visual acuity measurements are required. The lines are of equal difficulty and geometrical Progressions, in letter size, from line to line.\u003cbr\u003e\n\u003cb\u003eRevised Charts are now also available.\u003c\/b\u003e\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796763271511,"sku":"SV-SDT-214-0","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-214-0.jpg?v=1781603754"},{"product_id":"logmar-2m-illiterate-e-chart","title":"Logmar 2m Illiterate \"E\" Chart","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 2m Illiterate \"E\" Chart.\n\nFor testing at 2\nMeters (6.5ft)\n\n\nTo be used with either of the following Light Cabinets:\n SDT-392-LSV or SDT-396-LPV\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796939301207,"sku":"SV-SDT-230-9","price":201.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-230-9.jpg?v=1781603755"},{"product_id":"sloan-letters-contrast-chart-2m-1-25","title":"SLOAN LETTERS CONTRAST CHART 2m 1.25%","description":"\u003cdiv class=\"ewa-rteLine\"\u003eContrast Sensitivity plays an intricate part in everyday life. Testing contrast sensitivity helps to establish a record of what is normal for each patient, since everyone’s contrast sensitivity is unique. After establishing this accurate record for the patient, pinpointing abnormalities will be easier and can lead to quicker detection of vision problems. Abnormal contrast sensitivity results can help detect early signs of diseases such as Parkinson’s, Glaucoma, Cataracts and Glare problems, among many others.\n\nSloan low contrast vision test features equivalents on each side of the chart. These equivalents include Meters, Feet, LogMar, and Decimal. This list helps in easy translation and conversion of equivalents. Coupled with Sloan letters, true contrast levels and ETDRS style format, this contrast sensitivity test is accurate and reliable.\n\nWill fit illuminated cabinets \u003ca href=\"%%+logmar-chart-slim-cabinet-sussex-p-5539.html%%-\"\u003eSDT-392-LSV\u003c\/a\u003e and \u003ca href=\"%%+precision-vision-logmar-cabinet-p-5544.html%%-\"\u003eSDT-396-LPV\u003c\/a\u003e\n\nGlossary of terms:\u003cbr\u003e\n\u003ca href=\"%%+info_pages.php?pages_id=20%%-\"\u003e\u003cb\u003eWhat does ETDRS mean?\u003c\/b\u003e - Click for more info\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"%%+info_pages.php?pages_id=17%%-\"\u003e\u003cb\u003eLogmar Definition \u0026amp; Protocol\u003c\/b\u003e - Click for more info\u003c\/a\u003e\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796948148567,"sku":"SV-SDT-216-0","price":201.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-216-0.jpg?v=1781603762"},{"product_id":"sloan-letters-contrast-chart-2m-2-5","title":"SLOAN LETTERS CONTRAST CHART 2m 2.5%","description":"\u003cdiv class=\"ewa-rteLine\"\u003eContrast Sensitivity plays an intricate part in everyday life. Testing contrast sensitivity helps to establish a record of what is normal for each patient, since everyone’s contrast sensitivity is unique. After establishing this accurate record for the patient, pinpointing abnormalities will be easier and can lead to quicker detection of vision problems. Abnormal contrast sensitivity results can help detect early signs of diseases such as Parkinson’s, Glaucoma, Cataracts and Glare problems, among many others.\n\nSloan low contrast vision test features equivalents on each side of the chart. These equivalents include Meters, Feet, LogMar, and Decimal. This list helps in easy translation and conversion of equivalents. Coupled with Sloan letters, true contrast levels and ETDRS style format, this contrast sensitivity test is accurate and reliable.\n\nWill fit illuminated cabinets \u003ca href=\"%%+logmar-chart-slim-cabinet-sussex-p-5539.html%%-\"\u003eSDT-392-LSV\u003c\/a\u003e and \u003ca href=\"%%+precision-vision-logmar-cabinet-p-5544.html%%-\"\u003eSDT-396-LPV\u003c\/a\u003e\n\nGlossary of terms:\u003cbr\u003e\n\u003ca href=\"%%+info_pages.php?pages_id=20%%-\"\u003e\u003cb\u003eWhat does ETDRS mean?\u003c\/b\u003e - Click for more info\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"%%+info_pages.php?pages_id=17%%-\"\u003e\u003cb\u003eLogmar Definition \u0026amp; Protocol\u003c\/b\u003e - Click for more info\u003c\/a\u003e\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796949426519,"sku":"SV-SDT-216-1","price":201.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-216-1.jpg?v=1781603762"},{"product_id":"tumbling-e-low-contrast-flip-book","title":"Tumbling “E” Low Contrast Flip Book","description":"\u003cdiv class=\"ewa-rteLine\"\u003eNotations in M letter sizes ranging from 20M to 1.6M for testing at various distances.\n\nEach page its own contrast level at 100%, 2.5% and 1.25%.\n\nThis flip book is great for vision studies and research worldwide.\n\nThe Tumbling “E” vision chart uses only one optotype for testing.\n\nPatients not familiar with the Roman alphabet simply must gesture or sign which direction they see the “E” facing.\n\nThis is a helpful test for patients that are illiterate or mute, also.\n\nThis Tumbling “E” flip book contains three contrast levels for accurate sensitivity screening.\n\n\n\n\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796971217239,"sku":"SV-SDT-238-0","price":319.78,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-238-0.jpg?v=1781603758"}],"url":"https:\/\/www.sussex-vision.co.uk\/collections\/sv-2m-charts.oembed","provider":"ESP\/SV","version":"1.0","type":"link"}