What effect does font size have on text visibility?

Font size plays a crucial role in text visibility, as it directly impacts how easily a reader can see and comprehend the text. When the font size is excessively large, it can become overwhelming or difficult to read, while an excessively small font size can make the text illegible, even for audiences with good vision. In both cases, the visibility is compromised, affecting the reader's ability to absorb the information effectively.

Understanding the importance of appropriate font size is essential for creating documents that are user-friendly and accessible. It helps in striking a balance where the text is neither too large nor too small, thus ensuring that the intended message is conveyed clearly and effectively.