Can JavaScript access images on a page after it has been loaded, and how does this impact page load time?

JavaScript can access images on a page after it has been loaded by using the `document.images` property. This can impact page load time if the JavaScript code is manipulating a large number of images, as it may cause additional processing and rendering time. To optimize performance, it is recommended to only manipulate images when necessary and to use techniques like lazy loading to defer the loading of images until they are needed. ```javascript // Accessing images on a page using JavaScript var images = document.images; for (var i = 0; i < images.length; i++) { // Manipulate images here } ```