Cornea is commonly known as "black eye", which is located in front of the eyeball and looks like a part of a round sphere. It is transparent without blood vessels and has rich sensory nerves. It is under the protection of upper and lower eyelids after closure.
It ensures that the external light passes through the fundus of the eye without obstacles to obtain clear imaging. Any corneal disease that changes the transparency, shape and integrity of the cornea can cause vision loss.
In recent years, corneal blindness has become the second major blindness after cataract. At present, there are about 4 million patients with corneal blindness in China, increasing by 100000 person times every year.
For the treatment of corneal blindness, living corneal transplantation is a very effective treatment. However, due to various factors, there is a shortage of corneal sources in eye banks all over China, and many patients can only passively wait for donation.
For many severe patients, corneal transplantation has to face not only the scarcity of living corneal donation, but also the occurrence of corneal transplantation immune rejection.
Many scholars once believed that corneal tissue was an "immune amnesty" tissue. However, with the gradual deepening of research in recent years, it is found that cornea has a complex immune system. In clinical cases, corneal amnesty is often destroyed by high-risk factors, resulting in a high incidence of rejection.
For the end-stage corneal patients caused by multiple corneal transplantation failures, chemical injuries, thermal burns, explosive injuries and serious autoimmune diseases, there was no treatment in the past. For them, it was a terminal disease and could only spend the rest of their life in the dark.
However, the times are changing, science is progressing, and artificial cornea technology is constantly updated. 20 years ago, MIH's R & D team decided to develop an artificial cornea to help the blind recover their eyesight. After unremitting efforts, 20 years later, the world's first synthetic artificial cornea made of pure artificial materials - Michaelis artificial cornea came into the market. Bring the hope of vision restoration for patients with end-stage corneal blindness.
Donor cornea shortage? We don't need donor cornea. Michaelis artificial cornea is made of pure synthetic materials without donor cornea, which not only reduces the economic burden of patients and avoids the terrible rejection reaction, but also alleviates the current situation of scarce corneal donors in China.
Is corneal transplantation difficult to succeed in some patients? Michaelis artificial cornea has a wide range of indications. Patients with severe keratoconjunctival scar vascularization, eyeball adhesion, eyelid atresia, serious autoimmune diseases such as Steven Johnson syndrome, cicatricial pemphigoid and end-stage dry corneal blindness caused by multiple corneal transplantation failures, chemical burns, thermal burns and explosive injuries can obtain better treatment results through Michaelis artificial cornea.
Low biocompatibility of artificial cornea? The Michel artificial cornea lens column is made of PMMA material, which has the advantages of stable properties, high light transmittance, large refractive index, no degradation by the biological oxidation reaction of the body, light biological reaction to the body, convenient processing, etc. it is an ideal optical material, and it has been clinically proved to have good biocompatibility.
Is artificial corneal transplantation prone to intraocular infection? The central optical part of the Michel artificial cornea is connected with the titanium stent through threads, with high processing accuracy. The watertight combination between the lens column screwed in place and the stent can prevent low intraocular pressure caused by water leakage and reduce the chance of intraocular infection.
Is the complication of artificial cornea very serious? Michaelis artificial cornea is implanted by stages. Through intraocular perfusion and small corneal opening, serious intraoperative complications such as expulsion bleeding and water leakage of Boston artificial cornea and AlphaCor artificial cornea can be avoided to the greatest extent.
Can't refractive power be selected for artificial cornea? The front end of the Michel artificial corneal lens column is convex, and the rear end is designed as concave to form a certain diopter. The appropriate diopter of the optical part and the height of the lens column can be flexibly selected according to the length of the patient's ocular axis and the thickness of ocular surface tissue.
Artificial cornea is a permanent product and cannot be replaced at will? The detachable design of mikh artificial cornea can be disassembled and replaced according to the situation even after operation, such as changing the degree, replacing the lens column with inappropriate height and wear.
In recent years, artificial cornea has developed rapidly, but it is not widely used in clinic, even very few. The listing of Michaelis artificial cornea brings the hope of vision restoration for patients with end-stage corneal blindness, opens a new chapter of "artificial cornea without donor" and fills the gap of global ophthalmology.
As a company that designs and develops the world's first synthetic cornea made of pure artificial materials, Mihe medical has strong strength and confidence to lead the majority of corneal blind patients out of the darkness and meet the light. I also hope you can give us enough trust to build a world without blind people.