OpenDyslexic is an open sourced font created to increase readability for readers with dyslexia. The typeface includes regular, bold, italic, and bold-italic styles, and 2 typefaces: OpenDyslexic, and OpenDyslexic-Alta. It was created to help with my reading, and is being updated continually and improved based on input from other dyslexic users. There are no restrictions on using OpenDyslexic.
OpenDyslexic is created to help with some of the symptoms of dyslexia. Letters have heavy weighted bottoms to indicate direction. You are able to quickly figure out which part of the letter is down which aids in recognizing the correct letter, and sometimes helps to keep your brain from rotating them around. Consistently weighted bottoms can also help reinforce the line of text. The unique shapes of each letter can help prevent confusion through flipping and swapping.
OpenDyslexic uses unique letter shapes, to help prevent confusion
A heavier bottom is used to help orient the letters
OpenDyslexic also has other features, like wider letter spacing and a unique italic style.
Based on Research and Articles
Lots of different research bits and articles helped inspire and direct the development of OpenDyslexic. Here is a list of some:
- A Study of the Readability of On-Screen Text, Eric Michael Weisenmiller
- Extra-large letter spacing improves reading in dyslexia,
- Tablet PCs – An Assistive Technology for Students With Reading Difficulties?
- Typefaces for Dyslexia – formally at dyslexic.com/fonts
The following studies are of or including OpenDyslexic (2). These were not commissioned by me, and are independent of any influence of mine outside of clarifications. They are in no particular order. The below will link to the studies as I upload them.
- OpenDyslexic Font: Impact on the Reading Accuracy and Comprehension of Key Stage 2 Readers with Dyslexia, Liz Broadbent, 2018
- Good Fonts for Dyslexia,
- Towards Universally Accessible Typography: A Review of Research on Dyslexia, James E. Jackson Usability/Accessibility Research and Consulting
- The impact of font type on reading, Stephanie Hoffmeister, Eastern Michigan University 2016
- THE EFFECTS OF THE FONT DYSLEXIE ON ORAL READING FLUENCY SKILLS IN STUDENTS GRADES 8 THROUGH 12 WITH AND WITHOUT READING DISABILITIES, Jessie Rae Ramsey
- Do People with Dyslexia Need Special Reading Software? Luz Rello & Simone D. J. Barbosa
- Information and Communication Technology (ICT) applied to dyslexia: literature review, Luciana Cidrim & Francisco Madeiro
- Search and find? An accessibility study of dyslexia and information retrieval, Gerd Berget
- Contrast and font affect reading speeds of adolescents with and without a need for language- based learning support, Heiner Böttger, Julia Dose and Tanja Müller
- A Research on Readable Japanese Typography for Dyslexic Children and Students: Creating Japanese Typefaces for Dyslexic Readers, Shohei Yamada and Xinru Zhu
- The Effects of Fonts on Reading Performance for Those with Dyslexia: A Quasi-Experimental Study, Maya Grigorovich-Barsky
- How does the use of an e-reader as opposed to print on paper impact the accuracy of decoding comprehension and motivation of the young dyslexic reader, Liz Broadbent
- The possibilities of ICT use for compensation of difficulties with reading in pupils with dyslexia, Pavel Zikla*, Iva Košek Bartošováb, Kateřina Josefová Víškovác, Klára Havlíčkovád, Alice Kučírkováe, Jolana Navrátilováf, Barbora Zetkovág Institute of Primary and Preprimary Education, Faculty of Education, University of Hradec Králové, Rokitanskeho
Typefaces that helped inspire OpenDyslexic?
Andika, Apple Casual, Lexia Readable, Sassoon, Comic Sans.
Suggestions from French and Canadian teachers, particularly Charade-Estel, whose more significant suggestions never quite made it into OpenDyslexic 2.
Typefaces that helped inspire the look:
Signika, Chalkboard SE, Baskerville, Source Sans Pro, Consolas, Averia