{"title":"SV 4 METRE","description":"","products":[{"product_id":"translucent-distance-chart-4m-sloan","title":"Translucent Distance Chart 4m SLOAN","description":"\u003cdiv class=\"ewa-rteLine\"\u003eTranslucent Distance Chart 4m SLOAN.\n Notations for testing at 4 Meters (13ft).\n Measures 23 x 35.5 cm.\n\n\nFits\nSDT-399-LSV\nCabinet.\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796762583383,"sku":"SV-SDT-210-2","price":57.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-210-2.jpg?v=1781603755"},{"product_id":"logmar-4m-etdrs-chart-r-original","title":"Logmar 4m ETDRS Chart R Original","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m ETDRS Chart R Original\n\n4 metre viewing.\n Acuity range 40m to 2M.\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\u003cstrong\u003eRevised Charts are now also available.\u003c\/strong\u003e\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796762681687,"sku":"SV-SDT-211-0","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-211-0.jpg?v=1781603754"},{"product_id":"logmar-4m-etdrs-chart-1-original","title":"Logmar 4m ETDRS Chart 1 Original","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m ETDRS Chart 1 Original\n\n4 metre viewing.\n Acuity range 40m to 2M.\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":53796762714455,"sku":"SV-SDT-211-1","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-211-1.jpg?v=1781603755"},{"product_id":"logmar-4m-etdrs-chart-2-original","title":"Logmar 4m ETDRS Chart 2 Original","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m ETDRS Chart 2 Original\n\n4 metre viewing.\n Acuity range 40m to 2M.\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":53796762747223,"sku":"SV-SDT-211-2","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-211-2.jpg?v=1781603755"},{"product_id":"logmar-4m-etdrs-chart-1-revised","title":"Logmar 4m ETDRS Chart 1 Revised","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m ETDRS Chart 1 Revised\n\n4 metre viewing.\n Acuity range 40m to 2M.\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":53796762812759,"sku":"SV-SDT-212-1","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-212-1.jpg?v=1781603756"},{"product_id":"logmar-4m-etdrs-chart-2-revised","title":"Logmar 4m ETDRS Chart 2 Revised","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m ETDRS Chart 2 Revised\n\n4 metre viewing.\n Acuity range 40m to 2M.\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":53796762845527,"sku":"SV-SDT-212-2","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-212-2.jpg?v=1781603755"},{"product_id":"logmar-4m-etdrs-chart-3-revised","title":"Logmar 4m ETDRS Chart 3 Revised","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m ETDRS Chart 3 Revised\n\n4 metre viewing.\n Acuity range 40m to 2M.\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":53796762878295,"sku":"SV-SDT-212-3","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-212-3.jpg?v=1781603754"},{"product_id":"logmar-4m-contrast-sensitivity-1-25","title":"Logmar 4m Contrast Sensitivity 1.25%","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m Contrast Sensitivity 1.25%\n\nFor testing at 4 Meters\n(13ft)\n\n\n\nTo be used with either of the following Light Cabinets:\n \nSDT-392-LSV\nor \nSDT-396-LPV\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796763599191,"sku":"SV-SDT-215-0","price":227.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-215-0.jpg?v=1781603753"},{"product_id":"logmar-4m-contrast-sensitivity-2-5","title":"Logmar 4m Contrast Sensitivity 2.5%","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m Contrast Sensitivity 2.5% For\ntesting at 4 Meters (13ft)\n\n\n\nTo be used with either\nof the following Light Cabinets: \nSDT-392-LSV\nor \nSDT-396-LPV\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796763631959,"sku":"SV-SDT-215-1","price":227.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-215-1.jpg?v=1781603753"},{"product_id":"logmar-4m-contrast-sensitivity-5","title":"Logmar 4m Contrast Sensitivity 5%","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m Contrast Sensitivity 5%\n For testing at 4\nMeters (13ft)\n\n\n\nTo be uesd with either of the following Light Cabinets:\nSDT-392-LSV\nor \nSDT-396-LPV\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796763730263,"sku":"SV-SDT-215-2","price":227.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-215-2.jpg?v=1781603755"},{"product_id":"logmar-4m-contrast-sensitivity-10","title":"Logmar 4m Contrast Sensitivity 10%","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m Contrast Sensitivity 10%\n\nFor testing at 4 Meters.\n\n\n\nTo be used with either of the following Light Cabinets:\n \nSDT-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":53796763763031,"sku":"SV-SDT-215-3","price":227.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-215-3.jpg?v=1781603755"},{"product_id":"logmar-4m-contrast-sensitivity-25","title":"Logmar 4m Contrast Sensitivity 25%","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m Contrast Sensitivity 25%\n For viewing at 4 Meters (13ft)\n\n\n\nTo be used with either of the following\nLight\nCabinets:\nSDT-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":53796763795799,"sku":"SV-SDT-215-4","price":227.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-215-4.jpg?v=1781603755"},{"product_id":"logmar-4m-illiterate-e-chart","title":"Logmar 4m Illiterate \"E\" Chart","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m Illiterate \"E\" Chart.\n\nFor testing at\n4 Meters (13ft)\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":53796764189015,"sku":"SV-SDT-230-5","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-230-5.jpg?v=1781603756"},{"product_id":"patti-pics-4m-contrast-sensitivity-1-25","title":"Patti Pics 4m Contrast Sensitivity 1.25%","description":"\u003cdiv class=\"ewa-rteLine\"\u003ePatti Pics 4m Contrast Sensitivity 1.25%\u003cbr\u003e\n\u003cbr\u003e\nTranslucent panel for use with 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\u003cbr\u003e\n\u003cbr\u003e\nSupplied with a soft tipped pointer, record forms and instructions.\u003cbr\u003e\n\u003cbr\u003e\nSize: 62cm x 65cm\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796764713303,"sku":"SV-SDT-256-0","price":227.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-256-0.jpg?v=1781603757"},{"product_id":"patti-pics-4m-contrast-sensitivity-2-5","title":"Patti Pics 4m Contrast Sensitivity 2.5%","description":"\u003cdiv class=\"ewa-rteLine\"\u003ePatti Pics 4m Contrast Sensitivity 2.5%\u003cbr\u003e\n\u003cbr\u003e\nTranslucent panel for use with 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\u003cbr\u003e\n\u003cbr\u003e\nSupplied with a soft tipped pointer, record forms and instructions.\u003cbr\u003e\n\u003cbr\u003e\nSize: 62cm x 65cm\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796764811607,"sku":"SV-SDT-256-1","price":227.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-256-1.jpg?v=1781603755"},{"product_id":"patti-pics-4m-contrast-sensitivity-5","title":"Patti Pics 4m Contrast Sensitivity 5%","description":"\u003cdiv class=\"ewa-rteLine\"\u003ePatti Pics 4m Contrast Sensitivity 5%\u003cbr\u003e\n\u003cbr\u003e\nTranslucent panel for use with 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\u003cbr\u003e\n\u003cbr\u003e\nSupplied with a soft tipped pointer, record forms and instructions.\u003cbr\u003e\n\u003cbr\u003e\nSize: 62cm x 65cm\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796764844375,"sku":"SV-SDT-256-2","price":227.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-256-2.jpg?v=1781603755"},{"product_id":"patti-pics-4m-contrast-sensitivity-10","title":"Patti Pics 4m Contrast Sensitivity 10%","description":"\u003cdiv class=\"ewa-rteLine\"\u003ePatti Pics 4m Contrast Sensitivity 10%\u003cbr\u003e\n\u003cbr\u003e\nTranslucent panel for use with 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\u003cbr\u003e\n\u003cbr\u003e\nSupplied with a soft tipped pointer, record forms and instructions.\u003cbr\u003e\n\u003cbr\u003e\nSize: 62cm x 65cm\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796764877143,"sku":"SV-SDT-256-3","price":227.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-256-3.jpg?v=1781603755"},{"product_id":"patti-pics-4m-contrast-sensitivity-25","title":"Patti Pics 4m Contrast Sensitivity 25%","description":"\u003cdiv class=\"ewa-rteLine\"\u003ePatti Pics 4m Contrast Sensitivity 25%\u003cbr\u003e\n\u003cbr\u003e\nTranslucent panel for use with 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\u003cbr\u003e\n\u003cbr\u003e\nSupplied with a soft tipped pointer, record forms and instructions.\u003cbr\u003e\n\u003cbr\u003e\nSize: 62cm x 65cm\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796764909911,"sku":"SV-SDT-256-4","price":227.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-256-4.jpg?v=1781603756"},{"product_id":"modified-etdrs-european-logmar-4m-chart-1","title":"Modified ETDRS European LogMar 4m Chart 1","description":"\u003cdiv class=\"ewa-rteLine\"\u003eTo facilitate reliable visual acuity screening for clinical trials and exchange of patient data between doctors, clinics and researchers throughout Europe and beyond, researchers at the University of Crete (Dr. Sotiris Plainis, Prof. Miltiadis Tsilimbaris and Prof. Ioannis Pallikaris), have developed modified ETDRS charts that contain only capital letters that are common to all three European alphabets (Latin, Greek, Cyrillic), and are thus recognizable for a much wider population. The new charts have been validated against the original ETDRS charts in Greece, Bulgaria and Belgium.\n\n4 metre viewing.\n\nWill fit illuminated cabinets SDT-392-LSV and SDT-396-LPV\n\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796765368663,"sku":"SV-SDT-281-0","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-281-0.jpg?v=1781603756"},{"product_id":"modified-etdrs-european-logmar-4m-chart-2","title":"Modified ETDRS European LogMar 4m Chart 2","description":"\u003cdiv class=\"ewa-rteLine\"\u003eTo facilitate reliable visual acuity screening for clinical trials and exchange of patient data between doctors, clinics and researchers throughout Europe and beyond, researchers at the University of Crete (Dr. Sotiris Plainis, Prof. Miltiadis Tsilimbaris and Prof. Ioannis Pallikaris), have developed modified ETDRS charts that contain only capital letters that are common to all three European alphabets (Latin, Greek, Cyrillic), and are thus recognizable for a much wider population. The new charts have been validated against the original ETDRS charts in Greece, Bulgaria and Belgium.\n\n4 metre viewing.\n\nWill fit illuminated cabinets SDT-392-LSV and SDT-396-LPV\n\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796765401431,"sku":"SV-SDT-281-1","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-281-1.jpg?v=1781603762"},{"product_id":"modified-etdrs-european-logmar-4m-chart-3","title":"Modified ETDRS European LogMar 4m Chart 3","description":"\u003cdiv class=\"ewa-rteLine\"\u003eTo facilitate reliable visual acuity screening for clinical trials and exchange of patient data between doctors, clinics and researchers throughout Europe and beyond, researchers at the University of Crete (Dr. Sotiris Plainis, Prof. Miltiadis Tsilimbaris and Prof. Ioannis Pallikaris), have developed modified ETDRS charts that contain only capital letters that are common to all three European alphabets (Latin, Greek, Cyrillic), and are thus recognizable for a much wider population. The new charts have been validated against the original ETDRS charts in Greece, Bulgaria and Belgium.\n\n4 metre viewing.\n\nWill fit illuminated cabinets SDT-392-LSV and SDT-396-LPV\n\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796765466967,"sku":"SV-SDT-281-2","price":195.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-281-2.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":"logmar-4m-etdrs-number-chart","title":"Logmar 4m ETDRS Number Chart","description":"\u003cdiv class=\"ewa-rteLine\"\u003eLogmar 4m ETDRS Number Chart\n\n4 metre viewing.\n Acuity range 40m to 2M.\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 number, from line to line.\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53796953456983,"sku":"SV-SDT-275-0","price":201.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-275-0.jpg?v=1781603759"},{"product_id":"etdrs-chart-set-4m-3-charts","title":"ETDRS® CHART SET 4M  (3 Charts)","description":"\u003cdiv class=\"ewa-rteLine\"\u003e\n\u003cspan style=\"color: rgb(35, 31, 32); font-family: proxima-nova, sans-serif; font-size: 16px;\"\u003eSet includes 3 charts, 4M Sloan Original.\u003c\/span\u003e\n\u003c\/div\u003e","brand":"SV","offers":[{"title":"Default Title","offer_id":53797071094103,"sku":"SV-SDT-210-0B1","price":586.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/4360\/8663\/files\/SDT-210-0B1.jpg?v=1781603756"}],"url":"https:\/\/esp-sv.myshopify.com\/collections\/sv-4-metre.oembed","provider":"ESP\/SV","version":"1.0","type":"link"}