The retina is thin layer of nerve cells which line the inside of the eyeball. When light passes through the eye, it is projected onto the retina. Once the retina has received the image, it is sent to the brain via the optic nerve allowing us to see the world. Like the film of a camera, the structure is responsible for sensing light and producing pictures.
What is Retinal Detachment?
Retinal detachment describes an emergency situation in which the light-sensing neurosensory retina tears from the pigment epithelium before their separation, leading to blindness in severe cases. Deprived of blood and nutrients for a long time, the detached retina loses its normal function, which may lead to permanent vision loss if left untreated.
Causes of Retinal Detachment
Degeneration and retinal tear or break
Family inheritance
People with high myopia
(over -6.00D)
Previous eye or head injury
Severe diabetes
Inflammation of the ocular fundus
Symptoms of Retinal Detachment
Flashes of light
Distorted and blocked visual image
Sudden decline in visual acuity
Lots of new "floaters"
調理方法
視網膜脫落是嚴重的眼科急症。由於視網膜脫落後自然痊癒的機會很微，所以患者必須接受適當的調理，否則有機會造成永久性的視力損害。
Pars Plana Vitrectomy (PPV)
玻璃體切割手術 (簡稱PPV)是現今緩解裂孔性視網膜脫落的主要方法。通過手術儀器將玻璃體切除，再注入填充物 (生理鹽水、氣體等) 令視網膜固定到原來位置，此手術適用於患者視網膜撕裂範圍大。
Pneumatic retinopexy
某些情況下視網膜脫落後，患者可選擇眼內注射空氣填充術，主要用氣壓來擠壓眼球而令視網膜復位，再輔以瀲光或冷凍療程封住裂縫。
Pneumatic retinopexy
A gel sponge or silicone band is placed on the white of the eye to squeeze the eyeball and push back the detached retina to close the tear.
Caution
Retinal detachment is a very severe eye disease. If left untreated, patients are likely to lose their vision. Patients should seek medical attention as soon as possible if they notice any symptoms.