OpenDyslexic is a free

typeface A typeface (or font family) is the design of lettering that can include variations in size, weight (e.g. bold), slope (e.g. italic), width (e.g. condensed), and so on. Each of these variations of the typeface is a font. There are list of type ...

font In metal typesetting, a font is a particular size, weight and style of a typeface. Each font is a matched set of type, with a piece (a "sort") for each glyph. A typeface consists of a range of such fonts that shared an overall design. In mod ...

designed to mitigate some of the common reading errors caused by

dyslexia Dyslexia, also known until the 1960s as word blindness, is a disorder characterized by reading below the expected level for one's age. Different people are affected to different degrees. Problems may include difficulties in spelling words, r ...

. The typeface was created by Abelardo González, who released it through an open-source license. The design is based on

DejaVu Sans The DejaVu fonts are a superfamily of fonts designed for broad coverage of the Unicode Universal Character Set. The fonts are derived from Bitstream Vera (sans-serif) and Bitstream Charter (serif), two fonts released by Bitstream under a free l ...

, also an open-source font. Like many dyslexia-intervention typefaces, most notably

Dyslexie Dyslexie is a typeface/ font that was designed with the intention of mitigating some of the issues that dyslexics experience when reading. As many of the twenty-six letters of the basic Latin alphabet are visually very similar, the typeface emph ...

, OpenDyslexic adds to dyslexia research and is a reading aid. It is not a cure for dyslexia. The typeface includes regular, bold, italic, bold-italic, and

monospaced font A monospaced font, also called a fixed-pitch, fixed-width, or non-proportional font, is a font whose letters and characters each occupy the same amount of horizontal space. This contrasts with variable-width fonts, where the letters and spaci ...

styles. The benefit has been questioned in scientific studies. In 2012, González explained his motivation to the

BBC #REDIRECT BBC #REDIRECT BBC #REDIRECT BBC Here i going to introduce about the best teacher of my life b BALAJI sir. He is the precious gift that I got befor 2yrs . How has helped and thought all the concept and made my success in the 10th board ex ...

: "I had seen similar fonts, but at the time they were completely unaffordable and so impractical as far as costs go."

Integration

The

is currently an optional choice on many websites and formats, including

Wikipedia Wikipedia is a multilingual free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system. Wikipedia is the largest and most-read refer ...

Instapaper Instapaper is a social bookmarking service that allows web content to be saved so it can be "read later" on a different device, such as an e-reader, smartphone, or tablet. The service was founded in 2008 by Marco Arment. In April 2013, Arment s ...

Kobo eReader The Kobo eReader is an e-reader produced by Toronto-based Kobo Inc. The company's name is an anagram of "book". The original version was released in May 2010 and was marketed as a minimalist alternative to the more expensive e-book readers availa ...

Amazon Kindle Paperwhite Amazon Kindle is a series of e-readers designed and marketed by Amazon (company), Amazon. Amazon Kindle devices enable users to browse, buy, download, and read e-books, newspapers, magazines and other digital media via wireless networking to t ...

, a few children's books, and at least one imprint of

classic literature A classic is a book accepted as being exemplary or particularly noteworthy. What makes a book "classic" is a concern that has occurred to various authors ranging from Italo Calvino to Mark Twain and the related questions of "Why Read the Cla ...

. There is also a

Google Chrome Google Chrome is a cross-platform web browser developed by Google. It was first released in 2008 for Microsoft Windows, built with free software components from Apple WebKit and Mozilla Firefox. Versions were later released for Linux, macOS ...

extension available, which was developed by Abelardo González and Robert James Gabriel. It is also part of the "dyslexia-friendly mode" in Oswald Foundation's web accessibility products.

Scientific studies

Two small studies have investigated the effect of specialized fonts used with students with

. Rello and Baeza-Yates (2013) measured eye-tracking recordings of Spanish readers (aged 11–50) with dyslexia and found that OpenDyslexic did not significantly improve reading time nor shorten eye fixation. In her master's thesis, Leeuw (2010) compared Arial and Dyslexie with 21 Dutch students with dyslexia and found OpenDyslexic did not lead to faster reading, but may help with some dyslexic-related errors. In its "dyslexia-friendly style guide", the

British Dyslexia Association British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, ...

recommends using "sans serif fonts, such as

Arial Arial (also called Arial MT) is a sans-serif typeface and set of computer fonts in the neo-grotesque style. Fonts from the Arial family are included with all versions of Microsoft Windows from Windows 3.1 on, some other Microsoft software appli ...

and

Comic Sans Comic Sans MS is a sans-serif typeface designed by Vincent Connare and released in 1994 by Microsoft Corporation. It is a non-connecting script inspired by comic book lettering, intended for use in cartoon speech bubbles, as well as in other cas ...

, as letters can appear less crowded", adding that "alternatives include

Verdana Verdana is a humanist sans-serif typeface designed by Matthew Carter for Microsoft Corporation, with hand-hinting done by Thomas Rickner, then at Monotype. Demand for such a typeface was recognized by Virginia Howlett of Microsoft's typography ...

, Tahoma,

Century Gothic A century is a period of 100 years. Centuries are numbered names of numbers in English#Ordinal numbers, ordinally in English and many other languages. The word ''century'' comes from the Latin ''centum'', meaning ''one hundred''. ''Century'' is s ...

Trebuchet A trebuchet (french: trébuchet) is a type of catapult that uses a long arm to throw a projectile. It was a common powerful siege engine until the advent of gunpowder. The design of a trebuchet allows it to launch projectiles of greater weigh ...

Calibri Calibri () is a digital sans-serif typeface family in the humanist or modern style. It was designed by Luc(as) de Groot in 2002–2004 and released to the general public in 2007, with Microsoft Office 2007 and Windows Vista. In Office 2007, it ...

, nd

Open Sans Open Sans is an open source humanist sans-serif typeface designed by Steve Matteson, commissioned by Google and released in 2011. It is based on his previous Droid Sans design, designed for Android mobile devices, but slightly wider. Featuring ...

Related typefaces

There are other typefaces and fonts that have been linked to benefits for people with dyslexia including:

BBC Reith #REDIRECT BBC #REDIRECT BBC #REDIRECT BBC Here i going to introduce about the best teacher of my life b BALAJI sir. He is the precious gift that I got befor 2yrs . How has helped and thought all the concept and made my success in the 10th board ex ...

Integration

Scientific studies

Related typefaces

See also

Notes

References

External links