Reading a website should not depend on deciphering faint lettering or locating a tiny button hidden in a crowded layout. For people with low vision, including vision loss caused by glaucoma, larger text, stronger contrast, and spoken content can make digital tasks more manageable. The National Eye Institute identifies these device adjustments as practical ways to support everyday activities.
These adjustments serve a different purpose from medical treatment. Glaucoma damages the optic nerve, and making a screen easier to read does not reverse that damage or replace ongoing care. Alongside the information in our living with glaucoma FAQs, the following accessibility principles offer a practical framework for evaluating how a website works—not just how it looks.
Make Text Larger Without Losing Context
Enlarging text is a useful starting point, but bigger lettering helps only when the surrounding page remains usable. A navigation menu that disappears, a label that becomes clipped, or a button covered by another element can turn a simple adjustment into another obstacle.
The World Wide Web Consortium’s text-resizing guidance explains that, with specified exceptions for captions and images of text, users should be able to enlarge text to 200% without losing content or functionality. This is a measurable accessibility requirement rather than a general suggestion to choose larger fonts.
Reflow addresses a related problem: whether content rearranges itself when the available viewing area becomes narrower. For ordinary reading, paragraphs should adapt rather than force readers to scroll repeatedly in two directions. Some content, such as complex data tables, requires a two-dimensional layout and has specific exceptions.
A useful practical test is to enlarge an article, then open its menu and follow a link. Check the whole interaction, not just the body text.
Treat Contrast As More Than A Dark-Mode Switch
Contrast describes the difference between text and its background. Under WCAG’s Level AA minimum-contrast criterion, ordinary text generally needs a ratio of at least 4.5:1, while qualifying large text needs at least 3:1. Exceptions include certain decorative content, inactive controls, and logos.
For readers, the important question is whether text remains distinguishable throughout the page. Examine captions, navigation labels, search fields, and secondary explanations—not only headlines. An attractive heading does little to help when the instructions underneath it are difficult to see.
A dark background alone does not establish accessible contrast. Both light and dark designs need appropriate foreground-and-background combinations. W3C also notes that unusually thin lettering can appear fainter in practice, even when its specified colors technically meet a contrast threshold.
Try available display choices against a real task: reading several paragraphs and finding the next action. Treat the setting that works for you as a preference, not a universal prescription.
Keep Navigation Visible And Predictable
Some people with low vision find it difficult to locate or track a mouse pointer. Keyboard operation provides another way to move through a website, which is why WCAG requires functionality to be available through a keyboard interface, subject to a narrow exception for inherently path-dependent input.
Keyboard access also needs a visible indication of the current position. This is commonly an outline or another clear visual change around the selected link or control. Without it, someone may be able to move between elements technically while being unable to tell which element will activate.
Try moving through a page without the mouse. Can you identify the selected control, open the navigation, and reach the main content? Record the exact point where the interaction becomes unclear.
For a website owner, that observation is more actionable than a broad complaint that the page feels difficult to use.
Make Important Information Understandable Without Color
Color should support meaning rather than carry it alone. A form should not identify an error only by turning a border red, and a chart should not require readers to distinguish colored lines without additional labels or patterns. WCAG’s use-of-color criterion addresses this directly.
The same principle applies when reviewing information outside healthcare. Consider an adult researching BetOnline vs Polymarket and using TheRX’s BetOnline review as one source. An accessibility-focused review would ask whether headings, conditions, and links remain identifiable when colors are difficult to distinguish. This example is not an accessibility assessment or endorsement of either service.
For publishers, a useful editing exercise is to read every instruction without relying on its color. Replace directions such as “select the green option” with wording that identifies the option by its visible name. Keep color as an additional cue, not the only route to understanding.
Give Readers Control Over Moving Content
Automatically moving banners and changing panels deserve attention during accessibility testing. WCAG requires a way to pause, stop, or hide certain automatically starting movement that lasts more than five seconds and appears alongside other content, unless the movement is essential. Automatically updating information has a related requirement, without that five-second threshold.
For readers, inspect whether a carousel or live panel has usable controls before relying on it for important information. For publishers, ask a straightforward question: can someone finish reading an item before it changes?
As a design choice, reserve automatic movement for situations where it provides genuine value. A stable explanation with an intentional next-step control is worth considering instead of a rotating presentation.
Bring Specific Difficulties To Your Eye Appointment
Accessibility settings are most useful when matched to the problem someone actually encounters. Note whether the difficulty involves reading small text, finding controls, following a moving pointer, or keeping track of content after enlargement. Bring those examples—and, where practical, the device itself—to a discussion with your eye-care professional.
The National Eye Institute recommends asking about vision rehabilitation when vision loss interferes with daily activities. Support can include learning to use magnification and adjusting phone or computer settings. These services help people use their remaining vision and available technology more effectively.
Continue prescribed glaucoma treatment and follow-up appointments even when a display adjustment makes reading easier. Improved usability is valuable, but it is not evidence that glaucoma has improved.