Eye Symptoms: Are You Experiencing Glaucoma Signs? - Ophthalmology

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Not quite sure if I have glaucoma?


Hello doctor, I have floaters in my vision, but recently I've noticed that when I see car headlights or other bright lights, I sometimes see bright flashes of light that disappear after I blink.
Additionally, in the mornings when I wake up and look at the sunlight through the window, I see a blue light when I blink.
Sometimes, when I'm daydreaming, it feels like things in front of me are spinning, similar to a fan, but not as fast.
It seems that the symptoms are more pronounced when my eyes are tired and less noticeable when they are not as fatigued.
Also, when I look at dots, I see light.
I'm really scared because I'm only 18 years old and my eyes are like this.
I'm worried that besides floaters, I might have other symptoms.
I hope the doctor can provide me with an answer.
Thank you.

Gongzhu Daren, 10~19 year old female. Ask Date: 2018/07/12

Dr. He Jianxian reply Ophthalmology


The symptoms you described appear to be a normal visual afterimage phenomenon, which is different from floaters, and there is no need for concern.

Reply Date: 2018/07/12

More Info


It sounds like you are experiencing a variety of visual symptoms that can be concerning, especially at your young age. Let's break down your symptoms and discuss what they might indicate, as well as the importance of seeking professional medical advice.

Firstly, you mentioned having floaters (or "flying mosquitoes"), which are quite common and usually harmless. They are often caused by changes in the vitreous gel inside the eye as we age, but they can also be more pronounced in individuals with myopia (nearsightedness) or after eye trauma. However, if you notice a sudden increase in floaters, especially if accompanied by flashes of light or a shadow in your peripheral vision, it is crucial to seek immediate medical attention, as these could be signs of retinal detachment.

The bright lights you see when looking at car headlights or sunlight, which disappear after blinking, could be related to a few factors. One possibility is that your eyes may be experiencing some degree of dryness or fatigue, which can lead to temporary visual disturbances. Dry eyes can cause light sensitivity and make it difficult for your eyes to focus properly, leading to the perception of halos or glare around lights. This is particularly common in individuals who spend long hours in front of screens or in dry environments.

The blue light you see when looking at sunlight through a window could be a phenomenon known as "visual snow" or simply a result of your eyes adjusting to bright light. It is not uncommon for people to experience temporary visual distortions when transitioning from dark to bright environments or vice versa. However, if this symptom persists or worsens, it would be wise to consult an eye care professional.

The sensation of seeing things spin or move when you are not actively looking at them could be related to a few different factors. It might be a visual migraine, which can occur even without a headache, or it could be related to fatigue or stress. Anxiety can also exacerbate visual disturbances, leading to heightened awareness of symptoms that might otherwise go unnoticed.

Given your age and the variety of symptoms you are experiencing, it is essential to have a comprehensive eye examination. While some of your symptoms may be benign, others could indicate underlying issues that need to be addressed. Conditions like glaucoma, although less common in younger individuals, can occur, especially if there is a family history or if you have other risk factors. Glaucoma is characterized by increased intraocular pressure, which can damage the optic nerve and lead to vision loss if not treated.

In summary, while some of your symptoms may be related to common issues like dry eyes or fatigue, others warrant further investigation. It is crucial to maintain regular check-ups with an eye care professional, especially since you have existing concerns like floaters. They can perform tests to assess your eye health, including measuring intraocular pressure and examining the optic nerve, which can help rule out conditions like glaucoma or other retinal issues.

In the meantime, consider practicing good eye hygiene: take regular breaks from screens, stay hydrated, and use artificial tears if you experience dryness. If your symptoms worsen or you experience new symptoms, do not hesitate to seek immediate medical attention. Your eye health is important, and early detection of any potential issues can make a significant difference in treatment outcomes.

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