Bangkok: A message circulating on social media has sparked widespread concern, claiming that seeing a rainbow-colored halo around lights is an early warning sign of glaucoma, a condition that can lead to blindness. This claim has prompted many to question its validity.
According to Thai News Agency, the "Sure Before Sharing" center of MCOT Thai News Agency confirmed the accuracy of this claim with Assoc. Prof. Dr. Sakchai Wongkittirak, Chairman of Academic Affairs at the Royal College of Ophthalmologists of Thailand. Dr. Wongkittirak stated that the message is indeed true and should be shared to raise awareness about glaucoma, which poses a significant threat to vision health.
Glaucoma is recognized as a leading cause of irreversible blindness in both Thailand and around the world. Unlike other eye conditions such as cataracts, damage caused by glaucoma cannot be reversed. It primarily occurs due to increased intraocular pressure, which damages the optic nerve.
The human eye typically maintains its shape through a balance of fluid production and drainage. When this balance is disrupted, intraocular pressure rises, compressing the optic nerve and leading to gradual vision loss. This condition is often mistaken to be associated with high blood pressure, but they are unrelated.
A noticeable symptom of glaucoma is seeing rainbow halos around lights, particularly at night. This occurs when increased intraocular pressure causes the cornea to swell, scattering light and creating a prism effect. However, this symptom may also result from other conditions such as corneal abnormalities or severe dry eye. Immediate medical attention is advised if this symptom appears suddenly, especially if accompanied by eye pain.
Preventive measures include regular eye screenings, especially for those over 40 or at higher risk due to family history, steroid use, or occupations prone to eye injuries. Early detection and treatment can help preserve vision, despite glaucoma's status as a leading cause of blindness.
If you or someone you know notices a rainbow-colored halo around lights, seeking prompt evaluation by an ophthalmologist is crucial. Early intervention can significantly impact the management and progression of glaucoma.