Retinal detachment refers to the condition where the retina pulls away from its normal position.

Written by Li Zhuo

Ophthalmology

Updated on September 11, 2024

00:00

00:00

The structure of the human eye consists of three layers: the sclera, the choroid, and the retina. Retinal detachment is not actually a separation between the retina and the choroid, but rather a separation between the neural epithelial layer and the pigment epithelial layer of the retina, which means it is a detachment between the inner nine layers and the outermost layer of the retina. Retinal detachment can be classified into three types: rhegmatogenous retinal detachment, which is mainly caused by a tear in the retina allowing the vitreous fluid to enter the subretinal space; tractional retinal detachment, which occurs due to vitreous and retinal proliferation exerting traction on the retina, commonly seen in diabetic retinal detachment; and exudative retinal detachment, which is caused by accumulation of fluid between layers due to abnormal choroiditis.

Other Voices

home-news-image

Written by Li Zhen Dong

Ophthalmology

43sec

home-news-image

Does retinal detachment cause eye pain?

After retinal detachment, there is usually no pain in the eye. Symptoms include low ocular pressure, blurred vision, and visual field defects, which means seeing things partially or missing a half. In such cases, it is important to actively seek an ophthalmological examination. This includes checking the uncorrected visual acuity, corrected visual acuity, intraocular pressure, eye ultrasound, and fundus photography. Once diagnosed, it is crucial to undergo surgery as soon as possible. The earlier the surgery is performed, the better the potential recovery of vision. Generally, there is a high possibility of restoring vision after surgery.

home-news-image

Written by Li Zhen Dong

Ophthalmology

52sec

home-news-image

Does nearsightedness imaging fall in front of or behind the retina?

The image in a nearsighted eye forms in front of the retina, whereas in farsighted eyes, the image forms behind the retina. Nearsightedness means seeing clearly up close but blurry at a distance. When nearsighted, appropriate measures such as pupil dilation, optometric examination, and corrective lenses should be taken, or orthokeratology may be used. Once the degree stabilizes and no further progression occurs, surgical treatment can be considered after the age of 18. When the eye is unaccommodative, and parallel light rays enter, they focus in front of the retina. After these occurrences, with proactive treatment and proper rest, efforts should be made to prevent further increase in the degree. Especially in children, attention should also be paid to the development of strabismus and amblyopia.

home-news-image

Written by Xiao Yang Yan

Ophthalmology

41sec

home-news-image

Symptoms of secondary retinal detachment

The symptoms of a secondary retinal detachment are actually not much different from the first detachment; it's like a fixed shadow. Therefore, if you have ever experienced retinal detachment, you can cover one eye and use the other eye to check the visible range. Remember what range you can see now and then pay attention to any changes in the future. This way, you can clearly understand the changes in your field of vision. In the early stages, there may be an increased sensation of flashing lights or some floating dark shadows, so if these symptoms appear, it is important to go to the hospital for an examination.

home-news-image

Written by Li Zhuo

Ophthalmology

1min 11sec

home-news-image

Can you take a plane with a detached retina?

Retinal detachment and flying are divided into pre-surgery and post-surgery considerations. Before retinal detachment surgery, it is generally permissible to fly, as this typically does not significantly impact the symptoms of retinal detachment. However, what occurs after the surgery must be considered. If, after surgery, only silicone oil is used as a filler, flying is permissible as it does not affect pressure changes. However, if an inert gas is used as a filler after retinal detachment surgery, it can expand due to changes in air pressure at high altitudes. This expansion increases its volume, which can alter the internal pressure of the eye, potentially compressing the eyeball and the retina, leading to ischemia of the central retinal artery. In such cases, where inert or expansible gases are filled within the eye, flying is not advisable until the gas has dissipated.

home-news-image

Written by Zheng Xin

Ophthalmology

1min 1sec

home-news-image

Can retinal detachment heal by itself?

Retinal detachment refers to the separation between the neural epithelial layer and the pigment epithelial layer of the retina. Based on its cause, it can be categorized into rhegmatogenous retinal detachment, tractional retinal detachment, and exudative retinal detachment. Rhegmatogenous retinal detachment requires repositioning of the retina and closure of the break. If it is tractional retinal detachment, it is necessary to remove the cause, generally requiring vitrectomy and retinal reposition surgery. Exudative retinal detachment generally occurs due to inflammation or other irritations causing exudation or bleeding in the retina, resulting in detachment, typically without retinal breaks. This type of retinal detachment only requires treatment for the underlying disease, and aggressive treatment of the primary disease can generally lead to a cure. Therefore, retinal detachment must be treated; it cannot heal on its own.