你注意到光的闪光或线程在吗e corners of your eye and wondered what’s going on? Flashes in your eye are a type ofPhotopsia或视力干扰。
光线闪光可能发生在您的一只或两只眼睛中，并具有不同的形状，颜色，频率和持续时间。有很多原因。
让我们仔细研究一下眼睛中光闪烁的原因以及对它们的作用。
让我们考虑一下视网膜和玻璃幽默的功能，以更好地理解这些闪光。
- 这视网膜is a thin light-sensitive tissue that lines the back of the inside of your eye. It transmits electrical signals to your brain via the optic nerve. The job of the retina is to process the focused light that comes in through your pupil and to let your brain convert this information into a picture.
- 这玻璃体是一种透明的果冻状液体，占据了大部分眼睛的一部分。它可以保护视网膜，并帮助您保持其形状。
尽管有很多原因您可能会看到眼睛中的光线闪烁，但视网膜上的压力或力通常是原因。这些光闪烁发生在视网膜所在的眼睛的后部。
微小的纤维漂浮在玻璃体中，并附着在视网膜上。当这些纤维被拉或摩擦时，它可能会导致摩擦的闪光或光火花。
眼中的光线通常不是自己的条件。相反，它们往往是另一种情况的症状。
What are the possible causes?
根据美国眼科学会，看到眼角的光线可能是由多种因素或条件引起的。有些原因可能与您的眼睛健康有关，而其他原因可能与其他类型的健康状况有关。
Several types of eye-related issues may cause flashes of light to appear in the corner of your eye or field of vision.
与眼镜有关的原因
- Posterior vitreous detachment.这是您眼中闪光的最常见原因之一。它通常会随着年龄的增长而发生。和posterior vitreous detachment, the vitreous humor detaches from the retina. If it happens too quickly, it can cause small flashes of light, usually in the corner of your vision. It can also cause浮子。This condition doesn’t usually require treatment.
- 视神经炎。视神经炎happens when the optic nerve becomes inflamed. This can be caused by an infection or a nerve-related disorder such as multiple sclerosis. Flashes of light can be a symptom of this condition.
- 视网膜脱离。视网膜脱离is a serious condition that can cause partial or complete loss of vision. When this happens, the retina detaches, shifts, or moves away from the back wall of the eye.
- Pressure on the retina.如果您揉眼睛，咳嗽过于咳嗽或撞到头部，您可能会发现由于视网膜上的额外压力，光线闪烁。
Flashes of light in your eye may not necessarily be caused by an eye-related issue. It may be a symptom of a different health condition.
其他与健康有关的原因
- Occipital epilepsy.This rare type of seizure in the occipital lobe of the brain can cause visual flashes in the eye. It can be a sign of seizure activity. This is sometimes mistakenly diagnosed as a migraine aura. Typically, though, occipital epilepsy is shorter (2 minutes) compared to a migraine aura (15 to 60 minutes).
- 偏头痛。视觉障碍很常见偏头痛。您可能会看到眼睛中的光线，锯齿形线，星星或光点。这些症状通常在60分钟内消失。
- 瞬态缺血发作（TIA）。More commonly referred to as ministrokes,TIAs当血块暂时将血液流向大脑时，就会发生。TIA会引起视觉干扰，包括眼睛中的光线。
- 糖尿病。Flashes of light or floaters can be a symptom ofdiabetic retinopathy。
- 肿瘤。当您移动头部或颈部时，眼睛或大脑不同区域的肿瘤会产生闪光。
- 受伤。直接对您的眼睛受伤可能会导致您由于视网膜上的压力而看到闪烁或“星星”。
- 药物。某些药物可能会导致眼睛闪烁的光线或漂浮物。这包括：
- 贝伐单抗（avastin）
- sildenafil（伟哥，revatio）
视网膜脱离is a medical emergency and requires immediate medical attention to prevent vision loss. If you have the following symptoms, get medical help right away:
- sudden flashes of light, especially when you look to the side
- partial vision loss or darkened vision
- 模糊的视野
- dizziness
- other sudden vision-related problems
A TIA can often be a warning sign of a stroke. That’s why it’s important not to ignore the signs. If you notice any of the following symptoms, get medical attention as soon as possible:
- 身体一侧的软弱或麻木
- slurred speech or difficulty talking or understanding others
- visual disturbances or visual changes
- dizziness
- 严重的头痛
如果您，请预约去看眼科医生，验光师或您的主要医生：
- 眼睛或眼睛的光线突然增加
- 注意浮点数的大小和数量增加
- have a sudden change to your vision
- 偏头痛的视觉光环增加
您的医生可以根据这些视觉干扰的类型，持续时间和位置来确定光闪烁的原因。
任何严重的眼睛受伤也需要立即医疗护理。
眼中的光线通常是与您的眼睛或其他健康状况有关的问题的症状。治疗将取决于根本原因。
When you see your doctor, be sure to go over all the medications you’re currently taking. Some medications can cause vision-related side effects.
在某些情况下，与视神经炎一样，治疗炎症或感染的原因可以阻止光闪烁。
Tears in the retina or retinal detachment may require surgery.
没有治疗通常会随着年龄而发生的玻璃体收缩的治疗方法。
光线可能是由多种问题引起的。有些可能与您的眼睛有关，有些可能是另一种疾病的症状，例如偏头痛，癫痫，糖尿病或TIAS。
To stay on top of your eye health, be sure to see your eye doctor for a checkup at least once a year. Regular eye exams can help your doctor determine if there have been any changes to your vision or the health of your eyes.