Color Halos Around Bright Lights: Eye Health Insights

Looking at intense white light can cause a halo effect of colored light?

I visited an ophthalmologist on Saturday due to dry eyes for a basic examination, and my intraocular pressure was slightly elevated.
However, the doctor examined my optic nerve and said there were no issues.
I also had an eye exam last week where my left eye was dilated, and the doctor reported no problems.
I've been feeling a bit anxious from frequently visiting the eye clinic, so I googled the reasons for seeing colored halos around streetlights and found that it could be related to glaucoma.
I never paid attention to streetlights before, but upon closer observation, I noticed that there are indeed colored halos.
Some white lights exhibit this phenomenon, but not all; it tends to be more pronounced with brighter lights, and distant lights are less visible.
The halos are subtle and require careful observation, with circular lights being easier to see, while flat lights like fluorescent tubes do not show halos.

Do I still need to see an ophthalmologist? I feel a bit embarrassed about going so often.
Additionally, how can I lower my intraocular pressure in my daily life, such as through diet and lifestyle habits? Thank you, doctor.

Irene, 20~29 year old female. Ask Date: 2016/05/23

Dr. He Jianxian reply Ophthalmology

The condition you described is not what is clinically referred to as a halo effect.
True halo effects typically occur in patients with acute glaucoma, and are usually accompanied by symptoms such as headache, eye pain, nausea, and vomiting.
It is rare for halo effects to occur in isolation.
For reference, moderate exercise can be effective in lowering intraocular pressure.

Reply Date: 2016/05/23

More Info

It sounds like you are experiencing some visual phenomena that can be concerning, especially when it comes to eye health. The presence of color halos around bright lights, particularly at night, can be attributed to several factors, and it’s great that you are being proactive about your eye health by seeking regular check-ups.

Firstly, the halos you are seeing around bright lights, such as street lamps, can be a result of several conditions. One common cause is a refractive error, where light does not focus properly on the retina, leading to visual distortions. This can be exacerbated by dry eyes, which you mentioned you have experienced. Dryness can cause the tear film on the surface of your eye to become unstable, leading to blurry vision and halos. Additionally, if you have high myopia (nearsightedness), this can also contribute to visual disturbances, including halos.

Another potential cause of halos is the presence of cataracts, which is a clouding of the lens in the eye that can lead to increased sensitivity to light and visual distortions. However, since your eye doctor has indicated that your optic nerve appears healthy and has not raised any concerns about cataracts, this may not be the primary issue.

You also mentioned that you have experienced elevated intraocular pressure (IOP). While elevated IOP is a risk factor for glaucoma, it does not necessarily mean you have the condition. Regular monitoring is essential, especially if you have a family history of glaucoma or other risk factors. If your doctor has performed a thorough examination and has not found any signs of glaucoma, it may be reassuring, but it’s always wise to keep an eye on any changes in your vision.

Regarding your question about whether you should continue to see an eye doctor, it’s important to prioritize your eye health. If you notice persistent changes in your vision, such as the halos becoming more pronounced or if you experience any new symptoms (like pain, redness, or significant changes in vision), it would be prudent to schedule another appointment. It’s perfectly acceptable to seek a second opinion or to return for follow-up visits, especially if you have concerns.

In terms of managing eye pressure and overall eye health, there are several lifestyle changes you can consider:
1. Diet: Incorporating foods rich in antioxidants, such as leafy greens (spinach, kale), fish high in omega-3 fatty acids (salmon, sardines), and fruits like berries can support eye health. Foods rich in lutein and zeaxanthin, such as eggs and corn, are also beneficial.

2. Hydration: Staying well-hydrated is essential for maintaining healthy tear production and overall eye comfort.

3. Regular Exercise: Engaging in regular physical activity can help lower eye pressure and improve circulation.

4. Sleep: Ensure you are getting adequate sleep, as rest is crucial for eye recovery and overall health.

5. Screen Time Management: If you spend a lot of time in front of screens, take regular breaks using the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds. This can help reduce eye strain.

6. Stress Management: High stress can contribute to various health issues, including eye health. Techniques such as mindfulness, yoga, or other relaxation methods can be beneficial.

7. Protective Eyewear: Wearing sunglasses that block UV rays when outdoors can help protect your eyes from damage that can contribute to cataracts and other conditions.

In conclusion, while it’s understandable to feel anxious about your eye health, maintaining regular check-ups and being aware of any changes in your vision is crucial. If you have ongoing concerns, don’t hesitate to reach out to your eye care professional for guidance. Your vision is important, and taking proactive steps can help ensure your eyes remain healthy.

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