Common Eye Issues: Visual Disturbances After Light Exposure

Minor issues from childhood?

1.
After looking at a bright light, the area in the vision that appears dark is due to the temporary afterimage effect, which occurs when the photoreceptors in the retina become overstimulated.
When you close your eyes, the area may appear green or pink due to the phenomenon known as "visual persistence" or "phosphene," which is the perception of light without actual light stimulation.
When you are not looking at any light source, this effect diminishes.
2.
Sometimes, when you close your eyes, you may see a white mist or haze, but this does not occur when your eyes are open.
This can be attributed to the brain's interpretation of visual signals in the absence of external light, which can create a visual sensation even when the eyes are closed.
Thank you, doctor; I appreciate your help.

An, 10~19 year old female. Ask Date: 2020/07/02

Dr. Gao Pilin reply Ophthalmology

Hello, this phenomenon is known as "afterimage," where the residual colors of the image are the complementary colors of the original.
When your eyes are open, the bright background makes it difficult to notice the white mist, while closing your eyes against a dark background makes it easier to perceive.
At the E-Hospital in Puzi, Taiwan, the ophthalmology department is open on Monday, Tuesday, Thursday, and Friday from 8:00 AM to 12:00 PM, and on Wednesday from 2:00 PM to 4:30 PM.
Please note that online responses are for reference only; it is essential to seek medical attention at a healthcare facility if necessary.
I hope to have the opportunity to serve you.
Dr.
Gao Pilin

Reply Date: 2020/07/02

More Info

Visual disturbances after exposure to bright light are common phenomena experienced by many individuals. These disturbances can manifest in various ways, including seeing dark spots, experiencing afterimages, or perceiving colors when closing the eyes. Let's delve into the reasons behind these occurrences and explore some potential solutions.

1. Afterimages and Color Perception: The phenomenon of seeing dark spots or afterimages after looking at a bright light source is known as "afterimage." This occurs due to the photoreceptors in the retina (rods and cones) becoming temporarily overstimulated. When you look away from the bright light, the overstimulated receptors may continue to send signals to the brain, resulting in a lingering image. The colors you perceive when you close your eyes, such as green or pink, are often complementary colors to the original light source. This is a normal physiological response and usually resolves quickly.

2. Seeing White Fog When Eyes Are Closed: The experience of seeing a white fog or haze when your eyes are closed, but not when they are open, can be attributed to several factors. When your eyes are closed, the absence of external light allows you to notice the natural patterns of light and dark that exist in your visual system. This phenomenon can also be related to the brain's processing of visual information, where it continues to interpret signals even in the absence of light.

Potential Solutions and Recommendations:
- Rest Your Eyes: If you frequently experience visual disturbances after prolonged exposure to bright lights or screens, it’s essential to take regular breaks. The 20-20-20 rule is a helpful guideline: every 20 minutes, look at something 20 feet away for at least 20 seconds. This practice can help reduce eye strain and improve overall visual comfort.

- Adjust Lighting Conditions: When working or reading, ensure that the lighting is adequate but not overly bright. Using softer lighting or adjusting the angle of light sources can help minimize glare and reduce the likelihood of visual disturbances.

- Eye Protection: If you are frequently exposed to bright lights, consider wearing sunglasses or blue light-blocking glasses when outdoors or using screens. This can help protect your eyes from excessive light exposure and reduce discomfort.

- Consult an Eye Care Professional: If these visual disturbances persist or worsen, it is advisable to consult an eye care professional. They can conduct a thorough examination to rule out any underlying conditions, such as retinal issues or other ocular health concerns.

Conclusion:
Experiencing visual disturbances after exposure to bright light is generally a benign phenomenon related to the way our visual system processes light and color. However, maintaining good eye health through regular check-ups, proper lighting, and protective measures is crucial. If you have ongoing concerns or if the disturbances interfere with your daily life, seeking professional advice is always the best course of action. Remember, your eyes are vital to your overall well-being, and taking care of them is essential for maintaining good vision.

Similar Q&A

Understanding Visual Disturbances: Glaucoma, Floaters, and Eye Strain

Hello, Doctor! I have early-stage glaucoma, floaters, and myopia with a prescription of -5 to -6 diopters along with astigmatism (I have regular check-ups, and my visual field, OCT, and retinal examinations in December all showed normal results). However, I have a few concerns: ...

Dr. Gao Pilin reply Ophthalmology
Hello: 1. The phenomenon of seeing white circles resembling eyes after blinking in the dark may be a visual afterimage. A visual afterimage refers to the persistence of a visual impression after the stimulus has been removed. In low light conditions, blinking causes the pupils ...

Understanding Visual Disturbances: Symptoms and Solutions for Eye Issues

Hello, Doctor. I have several issues with my eyes that I would like to consult you about: 1. At night, when I look at bright lights, such as lamps or LED displays, I notice a layer that seems to float above them. For instance, with an LED display, it appears as if a line of whit...

Dr. Gao Pilin reply Ophthalmology
Hello, Student Yang: 1. This is caused by astigmatism. During the day, the pupils are smaller, so it is less noticeable. 2. This is the prism effect, and there is no need to worry. Regardless of whether you have experienced this phenomenon before, it is a normal prism effect bas...

Understanding Eye Issues: Floaters and Visual Disturbances Explained

1. I have floaters in my vision, typically seeing about three indoors and more outdoors. 2. Recently, I have had eye examinations, and the doctors said everything is fine. However, I now have a new issue: regardless of how bright or dim the lighting is indoors, whenever I look at...

Dr. He Jianxian reply Ophthalmology
Hello, I have not encountered a situation similar to yours in clinical practice, and I am unable to determine what the issue with your eyes might be. Dr. He Jianxian, Department of Ophthalmology, Nantou Hospital.

Understanding Blurry Vision and Visual Disturbances: Possible Causes and Solutions

Hello, doctor. My work environment primarily involves using a computer, monitoring screens, and wearing safety glasses. Due to the pandemic over the past two years, plastic sheets have been installed in the office and break room, which are not very transparent and create a narrow...

Dr. Gao Pilin reply Ophthalmology
Hello: Based on your description, it may be related to the eye's accommodative ability, which could indicate early symptoms of presbyopia. If there is a difference in the prescription between your two eyes, one eye may be more affected than the other. I recommend that you se...