Bloodshot eyes, caused by swollen or dilated blood vessels on the eye's surface, are usually harmless and resolve on their own. However, optometrist Humaira Bham, appearing on BBC's Morning Live, suggests a home remedy using a clean shot glass as an alternative to a commercial eye bath. She emphasizes that the severity can range from small red patches to full redness, and the condition can be triggered by anything from allergies to screen use.
Causes of Bloodshot Eyes
Bham explains that bloodshot eyes can result from conjunctivitis, ingrown eyelashes, blepharitis, or environmental factors like pollen, dust, or even a change in laundry detergent. Staring at digital screens for long periods reduces blink rate, leading to dry, irritated eyes. Identifying the cause is key to finding the right solution.
Home Remedies and Risks
For allergies, knowing the trigger can help get prescription medication. Eye drops are effective as they mimic the tear film and provide moisture. For those who dislike drops, an eye bath can be refreshing. A complete kit costs £3.99 at Boots, but a clean shot glass can serve as a makeshift option. However, Bham warns of risks: shot glasses have firm, flat rims that don't conform to the eye socket, leading to spills, and cheap plastic ones may have sharp edges that can scratch the eye.
When to Seek Medical Help
According to the NHS, urgent GP or optician appointments are needed if the eye is very painful or if contact lenses are worn, as an infection may be present. A&E is required for red eyes with vision changes, light sensitivity, severe headache with nausea, very dark red eyes, eye injury, chemical exposure, or unequal pupil size.
