Hunan Provincial People's Hospital (Mawangdui Campus) Performs Its First 3rd-Generation FCVB Surgery
Release time: Aug 05,2025
On July 25, the Hunan Provincial People's Hospital (Mawangdui Campus) successfully performed its first 3rd-generation foldable capsular vitreous body (FCVB) surgery. Professor Sha Sha's team from the Second Ophthalmology Ward implanted the 3rd-generation FCVB for a patient with severe ocular trauma, preserving the patient's hope. FCVB is a new eye-preserving technology that provides a novel treatment option for patients with fundus diseases such as severe retinal detachment, ocular trauma, and silicone oil-dependent eyes, and is of great significance in saving patients' eyeballs.
Patient's Condition Overview
The patient, a 61-year-old Mr. H, accidentally injured his left eye 5 months ago and was immediately sent to the Hunan Provincial People's Hospital for treatment. Due to the severity of the injury, Professor Sha Sha's team performed vitrectomy + silicone oil injection surgery for him, and he had regular re-examinations after the operation. Recently, Professor Sha's team examined him and found that he had corneal endothelial decompensation and slight eye atrophy. The diagnoses included left eye recurrent retinal detachment, left eye epiretinal membrane, left eye status post vitrectomy with silicone oil tamponade, left eye aphakia, left eye traumatic iridodialysis, and left eye retinal hole. Given the severe injury, without treatment, the eye would develop into a silicone oil-dependent eye.
What is a Silicone Oil-Dependent Eye?
Due to the non-regenerative nature of the natural vitreous, when vitreoretinal diseases occur or the vitreous is damaged by ocular trauma, the natural vitreous must be removed through surgery, and an appropriate artificial vitreous substitute must be filled.
Currently, silicone oil is the most commonly used filler in clinical practice. However, long-term silicone oil tamponade can easily lead to a series of postoperative complications, such as complicated cataracts, secondary glaucoma, corneal degeneration, and silicone oil emulsification. Some patients may eventually face eyeball atrophy or eyeball enucleation with prosthetic eye implantation, which affects their appearance and further impacts their life, work, and mental health.
As the patient showed signs of atrophy and silicone oil-dependent eyes are associated with many complications, he hoped to preserve his eyeball as much as possible and was unwilling to undergo repeated surgeries. After full communication with the patient and his family, Professor Sha recommended the 3rd-generation foldable capsular vitreous body (FCVB) surgery.
On the morning of July 25, Professor Sha Sha's team performed the 3rd-generation FCVB surgery on the patient. The folded capsule was implanted into the eye through a minimally invasive incision, and then silicone oil was injected into the capsule through the drainage valve to support the retina and maintain intraocular pressure. Finally, the 3rd-generation FCVB was successfully implanted into the patient's eye. Postoperative re-examination showed that the left eye's capsule was in the correct position with a deep anterior chamber, and the patient was satisfied with the postoperative effect.
Professor Sha introduced that FCVB is the world's first innovative product that simulates the human natural vitreous. FCVB can preserve the posterior chamber space, allowing the ciliary body to slowly recover its fun
ction, rescue the disabled ciliary body, and maintain intraocular pressure; it avoids silicone oil emulsification and displacement; and it comprehensively supports the retina and maintains the eyeball shape.
FCVB consists of a capsule, a drainage tube, a drainage valve, and a fixation loop. The capsule is precisely simulated based on the parameters of the human vitreous cavity through computer technology and has a special crystal surface plane design. The raw material is a medical silicone polymer approved for import by the US FDA. During the surgery, the capsule is folded and implanted into the vitreous cavity, silicone oil is injected through the drainage valve, and the capsule is fixed in the eye through double loops (fixation loop and drainage tube suture), isolating the damage of silicone oil to the ciliary body.
Postoperative examination showed that the retinal holes in the right eye were located on the indentation position and attached well, and the rest of the examination results were basically the same as before.
