Apple has introduced a Mac OS X Leopard update designed to improve accessibility for blind and partially-sighted users.

The company's Braille Display Update 1.0 is a 448k download that Apple made available last night. The software boosts accessibilty by introducing support for Braille displays to Mac OS X 10.5.

Braille display support is used in tandem with Apple's VoiceOver screen reading technology, which sends information about what is displayed on screen to the Braille display.

The installer widens the number of Braille displays Leopard does support, implementing such support for the following models:

GW Micro BrailleSense
GW Micro SyncBraille 20
GW Micro SyncBraille 32
HandyTech Easy Braille
HandyTech Braille Star 40
HandyTech Braille Star 80
HIMS BrailleSense
HIMS SyncBraille 20
HIMS SyncBraille 32
Nippon Telesoft Seika Version 3
Papenmeier Braillex Trio