Halo vision, Ophthalmology FAQ

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Understanding Rainbow Halo Vision After Waking Up: Causes and Solutions

Seeing rainbow halos upon waking up? Recently, my eyes have been a bit dry, and I've been yawning, blinking, and tearing up. One day, I felt that my tears didn't spread properly, and after squeezing out some tears, I kept blinking until I felt pain. Since that day, when...


Dr. Gao Pilin Reply:
Hello: Your symptoms include seeing rainbow halos upon waking and experiencing dryness and pain in your eyes. This may involve several ocular issues. Here are some possible causes: 1. Dry Eye Syndrome: Dryness can lead to an irregular corneal surface, causing light to scatter a...

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Understanding Halo Vision: Causes and Solutions for Eye Health

Halo in the left eye? Hello, doctor. I would like to ask about something I've experienced in the past day or two. When walking at night, I notice that lights in the distance, such as streetlights or car headlights, appear as rings of light with a hollow center. However, when...


Dr. Gao Pilin Reply:
Hello: Based on the situation you described, seeing streetlights or car headlights appear as rings at night may be related to specific issues with your eyes. This symptom could be caused by refractive abnormalities on the surface of the cornea or lens, or it may be due to light s...

[Read More] Understanding Halo Vision: Causes and Solutions for Eye Health


Understanding Halo Vision: Causes and Solutions for Eye Symptoms

The appearance of halos around lights? Hello Doctor: Recently, I suddenly noticed a faint halo in my left eye, and when I close my eyes, it turns into a white halo. I went to an ophthalmology clinic for an examination, and my intraocular pressure was normal, as well as the photog...


Dr. Gao Pilin Reply:
Hello: The symptoms you described may be related to the retina of the eye. The retina is an important part of the eye responsible for receiving and transmitting visual information to the brain. When the retina is damaged or affected by other issues, symptoms like afterimages, hal...

[Read More] Understanding Halo Vision: Causes and Solutions for Eye Symptoms


Understanding Halo Vision: Causes and When to Seek Help

The appearance of halos around lights? Hello, doctor. I have some questions to ask you. When I look at a light in a dark place, I feel like there is a halo of light surrounding it, but I don't notice this issue in a well-lit area. Is this normal? A few days ago, I visited a ...


Dr. He Jianxian Reply:
Hello, ordinary people: If there are halo phenomena in both bright and dark areas, it is more likely to be abnormal. As for the swelling in the center of the forehead, it may have a smaller correlation with the eyes and is more likely related to issues with the nose. Director He ...

[Read More] Understanding Halo Vision: Causes and When to Seek Help


Understanding Color Reflections and Eye Health: A Guide for Myopic Patients

Exposure to bright light in the eyes? I noticed that the sunlight reflects off the mirrors of motorcycles by the roadside, producing different colors, and some vehicle lights do the same. I have myopia and astigmatism of 50 degrees in my left eye. I previously used a steroid oint...


Dr. Gao Pilin Reply:
Hello Mr. Tsai: This should be a dispersion caused by some kind of prism effect, rather than a halo vision associated with high intraocular pressure. However, since you have had elevated intraocular pressure in the past, I still recommend that you regularly monitor your eye press...

[Read More] Understanding Color Reflections and Eye Health: A Guide for Myopic Patients


Understanding Rainbow Vision: Is It a Sign of Glaucoma?

Rainbow vision issues Hello, doctor. I noticed over two years ago that I see rainbow halos around streetlights, but after checking my eye pressure and visual field, everything was normal. Recently, I've started to worry again, as I've found that I also see halos indoors...


Dr. Gao Pilin Reply:
Hello Sana: Halo vision is a symptom of high intraocular pressure, but there are many other potential causes for halo vision that are not necessarily related to high eye pressure. If the intraocular pressure is very high, it can lead to blurred vision, eye discomfort, headaches, ...

[Read More] Understanding Rainbow Vision: Is It a Sign of Glaucoma?


Understanding Rainbow Vision: Causes and Implications for Eye Health

Rainbow vision issues Hello, I have ocular hypertension and have been using Combigan eye drops. I have undergone two visual field tests in the past six months (the last one was in early September), and my doctor informed me that my condition is stable and there is no diagnosis of...


Dr. Gao Pilin Reply:
Hello: Halo vision is just a symptom; sometimes corneal edema and corneal deposits can cause halos. Astigmatism can also create glare, which may not be colorful. The halo appears around the light source, so there should be as many halos as there are light sources. During the day,...

[Read More] Understanding Rainbow Vision: Causes and Implications for Eye Health


Understanding Halo Vision After Corneal Inflammation: Causes and Solutions

The phenomenon of halos appearing intermittently after keratitis? Hello, doctor. Around mid-November, my wife developed keratitis, experiencing symptoms such as redness, swelling, punctate corneal erosions, and blurred vision. She consulted several doctors, and eventually, one of...


Dr. Gao Pilin Reply:
Hello, Lin R: The formation of halos is likely related to the cornea, but I cannot determine the exact cause without further information. It may be that some inflammation is present, causing the cornea to be slightly irregular, which can lead to the phenomenon of halos. Additiona...

[Read More] Understanding Halo Vision After Corneal Inflammation: Causes and Solutions


Understanding Glaucoma: Is Halo Vision a Symptom to Worry About?

Glaucomatous halos Hello Doctor: In the past year, I have noticed that at night, when looking at streetlights, car headlights, and traffic lights, I perceive a scattering effect from a distance. When viewed up close, the lights appear to have a halo effect, with white lights show...


Dr. Cai Wenyuan Reply:
Hello, a halo is not necessarily glaucoma. Wishing you peace and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.

[Read More] Understanding Glaucoma: Is Halo Vision a Symptom to Worry About?


Understanding Halo Vision: Causes and Concerns for Myopia Patients

The streetlight has a large aperture? Hello, Dr. Tsai. I am currently nearsighted with a prescription of -500 diopters in both eyes. I was diagnosed at the age of 15 while in middle school. My mother had a visual field test, and I also underwent an examination at that time. The d...


Dr. Cai Wenyuan Reply:
Hello: There's no need to worry too much; regular check-ups will suffice. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.

[Read More] Understanding Halo Vision: Causes and Concerns for Myopia Patients


Understanding Halo Vision: Is It a Sign of Glaucoma?

There is a halo around the eyes? Hello Doctor: I would like to ask you about something. At night, I notice that streetlights, traffic lights, and pedestrian signals appear to have a "halo" around them or seem to radiate light, but there are no rainbow halos. Could this ...


Dr. Cai Wenyuan Reply:
Hello, could this be a symptom of glaucoma? It should not be. Can a dilated eye exam check the optic nerve? Yes, it can. Wishing you peace and health, Dr. Cai Wenyuan, Director of Ophthalmology, Taoyuan Hospital, Ministry of Health and Welfare.

[Read More] Understanding Halo Vision: Is It a Sign of Glaucoma?


Understanding Halo Vision: Causes and Concerns for Nighttime Light Disturbances

Seeing halos around streetlights and car headlights at night? Hello Dr. Tsai: When I look at streetlights or car headlights at night, I see a shimmering halo around them. Staring directly at the streetlight creates a halo effect, which occurs in both eyes, but I do not see a dist...


Dr. Cai Wenyuan Reply:
Hello, your description may not necessarily indicate glaucoma, so there is no need to worry. It is fine to seek a medical examination.

[Read More] Understanding Halo Vision: Causes and Concerns for Nighttime Light Disturbances


Understanding Rainbow Vision and Eye Pressure Concerns

Iris vision and intraocular pressure issues? I seem to have been experiencing halos around lights. I had an examination where the first air puff test showed an intraocular pressure of 27 in both eyes. After about half an hour, I had a tonometry test which returned to normal (thou...


Dr. Cai Wenyuan Reply:
Hello, your issue may still require a medical examination for a proper diagnosis. Wishing you safety and health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan Hospital, Ministry of Health and Welfare.

[Read More] Understanding Rainbow Vision and Eye Pressure Concerns


Understanding Post-Laser Surgery Visual Disturbances: What to Know

Eye problems This winter break, I underwent laser surgery for a retinal tear. I'm not sure if it's due to increased sensitivity after the surgery or something else, but I've recently noticed that when I look at car headlights or streetlights at night, there are dif...


Dr. Wang Zhishun Reply:
The situation you described seems more like HALO VISION (as shown in Google images), which should not be related to retinal tear laser treatment. I recommend getting it checked.

[Read More] Understanding Post-Laser Surgery Visual Disturbances: What to Know