Wednesday 6 June 2012

VoiceOver for IPhone



The same VoiceOver screen reader made popular on the Mac is now a standard feature on iPhone 4S, iPhone 4, and iPhone 3GS. It’s the world’s first gesture-based screen reader, enabling you to enjoy the fun and simplicity of iPhone even if you can’t see the screen.
What makes VoiceOver on iPhone truly remarkable is that you control it using simple gestures that let you physically interact with items on screen. It’s easy to learn and fun to use. Instead of memorizing hundreds of keyboard commands, or endlessly pressing tiny arrow keys to find what you’re looking for, with VoiceOver, you simply touch the screen to hear a description of the item under your finger, then gesture with a double-tap, drag, or flick to control the phone.
VoiceOver delivers an experience unlike any screen reader you’ve ever used before. Traditional screen readers describe individual elements on the screen, but struggle to communicate where each element is located or provide information about adjoining objects. This contextual information is very important but typically filtered out by other screen readers. For example, “off-screen” models used by traditional screen readers to represent applications and web pages intentionally strip away contextual information and describe web pages as a list or menu of items. But with VoiceOver on iPhone 4S, iPhone 4, and iPhone 3GS, you’ll experience something entirely new.
Because VoiceOver works with the iPhone touchscreen, you interact directly with objects on the screen and can naturally understand their location and context. So, when you touch the upper-left corner of the screen, you’ll hear what’s in the upper left corner of a web page, and as you drag your finger around the screen, you’ll learn what’s nearby, providing an amazing new sense of context and relationship between the items you hear. For many, VoiceOver on iPhone will provide, perhaps for the first time, a true sense of how things appear on screen, not just descriptions of what they are.
You’ll hear descriptions of every item on the screen, including status information such as battery level, Wi-Fi and cellular network signal levels, the cellular network provider, and time of day. It even lets you know when the display changes to landscape or portrait orientation, and when the screen is locked or unlocked.
The speaking rate is adjustable so you can set it to a speed that best suits your listening ability. VoiceOver uses distinctive sound effects to alert you when an application opens, when the screen is updated, when a message dialog appears, and more. And, when Voiceover is talking, the volume of background sounds and music is automatically lowered, “ducking” under the voice, so you can clearly hear what VoiceOver is telling you.

SmartView Versa


SmartView Versa handheld electronic magnifier

  • Easy to use electronic handheld magnifier
  • Magnify images up to 15X
  • Large, simple to use buttons, large color LCD display
  • Autofocus for optimal viewing distance
  • Writing stand or flip out the handle for optimal viewing

This device would be great for enhancing the text on everyday objects in the classroom.  Aside from enhancing books or handouts it can also be used to enlarge the text during science class when using and measuring during labs.  Visually enhancing the image of manipulatives for math and allowing students to search the library for their favorite book.  This is an individual tool that can be used both at school and at home.

Crossing the street when visually impaired


This is a really good app for people who are visually impaired and like to go out for walks.

Zoom Text Magnifier



ZoomText Magnifier enlarges and enhances everything on your computer screen, making all of your applications easy to see and use.  This would be great for students to use to help them navigate the computer. 
Students who have visual impairments now can participate in class projects needing the use of the computer with ease as this program will enlarge everything on the computer screen.

BrailleTouch Helps Visually Impaired Users


Eyenote for Visually Impaired

This is a great app for visually impaired people to help count money.

What is it like to be visually impaired?


This is a very interesting video showing what someone who is visually impaired lives with each day.

Mobile reading device for blind and visually impaired people


Top 10 iPhone Apps for the Visually Impaired


1.    The LookTel Money Reader ($1.99) recognizes US currency in standard denominations ($1, $2, $5, $10, $20, $50, and $100 bills) enabling blind and visually impaired people to quickly identify and count bills. Point the iPhone camera at any US bill and LookTel's object recognition technology via VoiceOver tells users the denomination in real time. Best to organize bills before hitting the nightclub; the app doesn't work as well in low light.

2.    SayText (free), developed by Norfello Oy, scans text within any image, such as a medical form or restaurant menu, and reads it aloud. Center the document under the iPhone camera and double-tap the "Take Picture" button. Then raise it slowly: a beep indicates that the entire document is in the phone's frame. The app's Optical Character Recognition utility then scans the text. Tap the screen for status updates. Once scanned, swipe right on the screen to hear the document.

3.    GreenGar Studios' Color Identifier ($1.99) uses the iPhone camera to identify and speak color names aloud. Shades identified are specific to the point of annoyance (Paris Daisy, Moon Mist) for some users. The company makes a free app called Color ID Free that sticks to basic colors. Blind people will never wear mix-matched socks or the wrong shirt again. An interesting offshoot is using the app to distinguish shades of sky, enabling one to experience sunsets or gauge possible weather changes.

4.    TalkingTag™ LV ($9.99) from TalkingTag enables blind people to label everyday items with special coded stickers. Users scan each sticker with the iPhone camera and record and replay via VoiceOver up to a 1-minute audio message identifying what's being labeled. The app is ideal for organizing a DVD collection, locating boxes during a move, or picking the right jelly jar from the refrigerator. Stickers can be erased and recorded over.

5.    The Learning Ally app ($19.99) provides access to Learning Ally's library of more than 70,000 audiobooks is considered the best source for K-12 and college-level textbooks. Users can download and play on all iOS devices. A Learning Ally membership is required and costs $99. Persons with visual and learning disabilities can seek reimbursement from their school. Readers navigate DAISY books by page number and chapter, can adjust playback speed, and place electronic bookmarks throughout the text. Recording for the Blind & Dyslexic became Learning Ally in April 2011.

6.    Visible Braille ($3.99) from Mindwarrior is a tutorial for self-paced braille instruction. It translates English letters and words into the six-dot cells of the characters comprising the braille alphabet. Users can store the side-by-side images. The app teaches letters, words, and contractions and has built-in quizzes and a Help section to reinforce learning.

7.    NAVIGON's MobileNavigator North America ($44.99) transforms the iPhone into a fully functional mobile navigation system that uses the latest NAVTEQ map material. The app offers text-to-speech voice guidance, enhanced pedestrian navigation, a turn-by-turn RouteList, location sharing via email, and a Take Me Home function. It also provides direct access and navigation to iPhone address book contacts. Navigation is automatically resumed after an incoming phone call.

8.    The Coding Monkeys' Big Clock HD app ($0.99) is a must for visually impaired travelers. Just double tap to rotate iPad orientation to landscape view and set it atop a hotel room TV or table. You'll be able to read it with a glance while lying in bed. The clock displays time and date in the region format and language the device is set to. The app prevents devices from auto-locking when displaying the time.

9.    This easy-to-read app calculator ($0.99) speaks button names, numbers, and answers aloud through a customizable built-in directory that lets users record their own voice. Button names are spoken as your finger moves over the screen. Double tapping activates enters buttons. The calculator also has a high-contrast display mode to enhance visibility. Developer Adam Croser also makes the Talking Scientific Calculator app.

10.Serotek Corporation's iBlink Radio was the first application promoting the digital lifestyle among the visually impaired, providing access to community web radio stations with formats spanning every genre. The iBlink network also offers radio reading services (USA Today, the New York Times, among hundreds), and podcasts covering assistive technology, independent living, travel, and more. The app's latest player toolbars simplifies navigation.

Assistive Technologies for Vision and Hearing Impaired Children

What can doctors do for visually impaired people?



What Do Doctors Do?
If you, your parent, or your doctor suspects a visual problem, you'll probably pay a visit to an ophthalmologist (pronounced: af-thal-mah-luh-jist), a medical doctor who specializes in examining, diagnosing, and treating eyes and eye diseases. When someone goes for an examination, the ophthalmologist will look at the structure of that person's eye.
Other simple tests an ophthalmologist may perform include:
Visual acuity test. A person reads an eye chart to measure how well he or she sees at various distances.
Visual field test. Ophthalmologists use this test to measure side, or peripheral, vision.
Tonometry test. This test determines the fluid pressure inside the eye to evaluate for glaucoma.
If your doctor determines that you have an eye condition that is likely to cause visual impairment, many treatments are available. Options may include eyeglasses, contact lenses, and eye drops or other medicines.
In some cases, surgery may be required. For instance, cataracts are often treated by removing the clouded lens and replacing it with an intraocular lens (an artificial plastic lens that requires no special care and restores vision).
Other methods can compensate for vision loss. Guide dogs can help people get from place to place independently. Braille allows those with visual impairment to read and write. Special equipment such as microscopic and telescopic glasses and voice-recognition software can make school and homework easier.

What are some causes of visual impairment?



What Causes Visual Impairment?
People rarely lose their eyesight during their teen years. When they do, it's usually caused by an injury like getting hit in the eye or head with a baseball or having an automobile or motorcycle accident.
Some babies have congenital blindness, which means they are visually impaired at birth. Congenital blindness can be caused by a number of things — it can be inherited, for instance, or caused by an infection (like German measles) that's transmitted from the mother to the developing fetus during pregnancy.
Conditions that may cause vision loss after birth include:
Amblyopia (pronounced: am-blee-oh-pee-uh) is reduced vision in an eye caused by lack of use of that eye in early childhood. Some conditions cause a child's eyes to send different messages to the brain (for example, one eye might focus better than the other). The brain may then turn off or suppress images from the weaker eye and vision from that eye then stops developing normally. This is also known as a "lazy eye." Strabismus (misaligned or crossed eyes) is a common cause of amblyopia, since the brain will start to ignore messages sent by one of the misaligned eyes.
Cataracts are cloudy areas in part or all of the lens of the eye. In people without cataracts, the lens is crystal clear and allows light to pass through and focus on the retina. Cataracts prevent light from easily passing through the lens, and this causes loss of vision. Cataracts often form slowly and usually affect people in their 60s and 70s, but sometimes babies are born with congenital cataracts. Symptoms include double vision, cloudy or blurry vision, difficulty seeing in poorly lit spaces, and colors that seem faded.
Diabetic retinopathy (pronounced: reh-ton-ah-pa-thee) occurs when the tiny blood vessels in the retina are damaged due to diabetes. People with retinopathy may not have any problems seeing at first. But if the condition gets worse, they can become blind. Teens who have diabetes should be sure to get regular eye exams because there are no early warning signs for this condition. To help prevent retinopathy, people with diabetes should also avoid smoking, keep their blood pressure under control, and keep their blood sugar at an even level.
Glaucoma is an increase in pressure inside the eye. The increased pressure impairs vision by damaging the optic nerve. Glaucoma is mostly seen in older adults, although babies may be born with the condition and children and teens can sometimes develop it as well.
Macular degeneration (pronounced: mah-kyoo-lur dih-jeh-nuh-ray-shun) is a gradual and progressive deterioration of the macula, the most sensitive region of the retina. The condition leads to progressive loss of central vision (the ability to see fine details directly in front). Macular degeneration is often age related (it occurs in older people, especially older than 60), but sometimes it can occur in younger people. Excessive exposure to sunlight and smoking can increase the risk for age-related macular degeneration. Symptoms may include increased difficulty reading or watching TV, or distorted vision in which straight lines appear wavy or objects look larger or smaller than normal.
Trachoma (pronounced: truh-ko-muh) occurs when a very contagious microorganism called Chlamydia trachomatis causes inflammation in the eye. It's often found in poor rural countries that have overcrowded living conditions and limited access to water and sanitation. Blindness due to trachoma has been virtually eliminated from the USA.


What is Visual Impairment?


Visually Impaired
"The greatest tragedy in life is people who have sight, but no vision."
---Helen Keller


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The human eye is like a camera that collects, focuses, and transmits light through a lens to create an image of its surroundings. In a camera, the image is created on film or an image sensor. In the eye, the image is created on the retina, a thin layer of light-sensitive tissue at the back of the eye.
Like a camera, the human eye controls the amount of light that enters the eye. The iris (the colored circular part of the eye) controls the amount of light passing through the pupil. It closes up the pupil in bright light and opens it wider in dim light. The cornea is the transparent, protective surface of the eye. It helps focus light, as does the lens, which sits just behind the iris.
When light enters the eye, the retina changes the light into nerve signals. The retina then sends these signals along the optic nerve (a cable of more than 1,000,000 nerve fibers) to the brain. Without a retina or optic nerve, the eye can't communicate with the brain, making vision impossible.
What Is Visual Impairment?
Many people have some type of visual problem at some point in their lives. Some can no longer see objects far away. Others have problems reading small print. These types of conditions are often easily treated with eyeglasses or contact lenses.
But when one or more parts of the eye or brain that are needed to process images become diseased or damaged, severe or total loss of vision can occur. In these cases, vision can't be fully restored with medical treatment, surgery, or corrective lenses like glasses or contacts.
The American Foundation for the Blind estimates that 10 million people in the United States are visually impaired. Visual impairment is a term experts use to describe any kind of vision loss, whether it's someone who cannot see at all or someone who has partial vision loss.
Some people are completely blind, but many others have what's called legal blindness. They haven't lost their sight completely but have lost enough vision that they'd have to stand 20 feet from an object to see it as well as someone with perfect vision could from 200 feet away.