If you’re an Instagram or Facebook user, there are ways to add descriptions to the images you upload. Descriptions for images are vital for those who are blind or vision impaired so adding them to your posts can help make it more accessible!
For Instagram: When you are ready to write a caption when uploading your image, you will see at the bottom an option for “Advanced settings.” Continuing with that setting you will find toward the bottom a section called “Accessibility” with the option to write an alternative text.
For Facebook: Select the photo you are wanting to add to your post. Hover over the photo and click “Edit.” There will be an automatically generated alternative text of your photo, but you may click “Override generated alt text” to create your own.