symbol that has a line width of less than 1 minute of arc, then their visual acuity will be 1. If the person being tested has a visual acuity of only 0.5, then the test symbol displayed must be doubled [...] Acuity When our visual acuity decreases In order to see objects clearly, the incoming light must be focused on the retina. The better this process works, the sharper our vision - and we are then able to [...] acuity. Visual acuity in ophthalmology However, determining visual acuity is also an absolute necessity when using magnifying vision aids. In order to correct vision defects, ophthalmologists and opticians need

support in dealing with everyday challenges. Select an eye disease from the above list to discover more. In each case, we will show normal vision and then vision in 4 stages of the particular illness.

Certain criteria are of prime importance when it comes to smartphones for visually impaired people: Rather than the phone's design and finish, the integrated aids to operation and available apps are to [...] reading messages or writing emails – all are no problem whatsoever for blind or visually impaired people when they have the right apps and operating tools. Various functions and settings make it easier to work [...] The colourful tiles of the Windows phone can be adjusted individually in format and position. Selecting a larger font size in the system generally has no effect on the icon markings on the start screens

do our eyes. We first begin to notice this around the age of 40 when it becomes increasingly difficult to read details and small print. When sight loss can no longer be fully corrected using glasses, modern [...] for an active life. Anyone who suffers from poor vision is restricted in many ways. For instance, when they're reading, watching television or socialising - because better vision always means a better [...] can provide vital support in dealing with everyday challenges. Read more Magnification requirement When our visual acuity decreases, magnifying vision aids are able to compensate for the impaired vision

Visual acuity 0,8 Reading travel timetables Visual acuity 0,7 Reading a telephone directory Visual acuity 0,5 Reading the newspaper Visual acuity 0,4 Watching television Visual acuity 0,1 Orientation outdoors [...] Magnification requirement When glasses are no longer enough When our visual acuity decreases, magnifying vision aids are able to compensate for the impaired vision by magnifying the images on the retina [...] retina. Before a suitable magnifying vision aid can be selected, it is necessary to find out what the magnification requirement is. In general, this is determined by the ratio between the visual acuity required

1_bis_Rev_H_v1.1_web_2022-07_DE_EN_FR_IT_ES_NL3.3 MBmanual_16551_bis_Rev_H_v1.1_web_2022-07_DK_SE_NO_FI_PL_CZ3 MBmanual_16551_bis_Rev_H_v1.1_web_2022-07_JP2.8 MBmanual_16551_ab_Rev_I_v2.0_web_2022-07_ [...] s an entire newspaper columnNumerous false colour combinations can be selected Intuitive operation Ideal soluition when on the go or at homeLight-weight, compact, robust and sustained mobile [...] DE_EN_FR_IT_ES_NL3.3 MBmanual_16551_ab_Rev_I_v2.0_web_2022-07_DK_SE_NO_FI_PL_CZ3 MBmanual_16551_ab_Rev_I_v2.0_web_2022-07_JP2.8 MBAccessories Accessories Art. Nr. 1655109 visolux DIGITAL Bag show Accessory

1_bis_Rev_H_v1.1_web_2022-07_DE_EN_FR_IT_ES_NL3.3 MBmanual_16551_bis_Rev_H_v1.1_web_2022-07_DK_SE_NO_FI_PL_CZ3 MBmanual_16551_bis_Rev_H_v1.1_web_2022-07_JP2.8 MBmanual_16551_ab_Rev_I_v2.0_web_2022-07_ [...] s an entire newspaper columnNumerous false colour combinations can be selected Intuitive operation Ideal soluition when on the go or at homeLight-weight, compact, robust and sustained mobile [...] DE_EN_FR_IT_ES_NL3.3 MBmanual_16551_ab_Rev_I_v2.0_web_2022-07_DK_SE_NO_FI_PL_CZ3 MBmanual_16551_ab_Rev_I_v2.0_web_2022-07_JP2.8 MBAccessories Accessories Art. Nr. 1655109 visolux DIGITAL Bag show Accessory

device, in order to keep track of the settings selected by the user (emphasis, text size, etc.) and are deleted following the end of the session or, as the case may be, a time period in accordance with the [...] individual inquiries. We will notify you when required. Furthermore, we only process data you provide to us voluntarily and data that is collected automatically when our website is visited (e.g., your IP [...] perform requested services and to safeguard our legitimate business interests (Art. 6 subsection 1 sentence 1 under b and f GDPR). We transmit your personal data according to any legal or contractual obligations

s an entire newspaper columnNumerous false colour combinations can be selected Intuitive operation Ideal soluition when on the go or at homeLight-weight, compact, robust and sustained mobile [...] active matrix TFT LCD screen16:9 widescreen format14 contrast-enhanced false colour modes can be selectedDynamic Line Scrolling (DLS)Powerful automatic exposure to compensate for ambient lightOptical o [...] AUSDelivery includes HDMI cable, USB type-C cable, 8 GB SD card, lanyard, microfibre cloth and hard foam caseThe proven concept of visolux DIGITAL now also in the 12-inch categoryAlmost 30 cm screen diagonal

device for worldwide use, microfibre caseProduct PropertiesAlso available with the following options: X/Y tableMovable cross table for even greater comfort when readingStable and ergonomicIndividual [...] standing upErgonomicScreen height adjustment Screen tilt adjustment XY-table Basic properties Magnification1.3 – 45 xDisplay TechnologyTFT-LCD, reflexionsfreiScreen size/diagonal in cm39.6 cmScreen size/diagonal [...] on key shift paddle menu button separately button for reading line/reading line remote control selection dialUser supporthigh-contrast function keys tactile function keys large icons high-contrast symbols