What is the primary function of a screen reader for users with visual impairments?

The primary function of a screen reader for users with visual impairments is to read text aloud from the computer screen. This assistive technology converts the visual content displayed on a screen into speech, allowing individuals who cannot see or have limited vision to access information and navigate their devices effectively.

While enhancing color contrast, assisting in typing, and translating text into braille can provide support for accessibility, these functions do not capture the main purpose of a screen reader. The core utility lies in its ability to vocalize on-screen text, which enables users to receive the same information as sighted users would through reading. This functionality greatly enhances usability and independence for individuals with visual impairments.