The phrase "eyes alight with excitement" is a common description used in literature to convey exhilaration and joy. If you're looking for synonyms that would fit this vivid description, consider using terms like "sparkling eyes," "glittering eyes," "gleaming eyes," "bright eyes," "twinkling eyes," or "shining eyes." These phrases often capture the essence of positive feelings and emotions that can be seen through the eyes. Whether you're a writer or someone simply looking for an expressive phrase to describe a moment of happiness, these synonyms provide a wealth of possibilities that could elevate your language and convey your emotions in the most impactful way possible.