Provided is a gel material for ophthalmic treatment useful as a synthetic vitreous body which is a novel intraocular tamponade material having a low swelling pressure, an appropriate elastic force, and no toxicity to ocular tissues, specifically, to retinas, and which is capable of stably maintaining a long-term stable tamponade effect.
A gel material for ophthalmic treatment including a hydrogel in which a gel precursor cluster crosslinks to form a three-dimensional network. The gel precursor cluster has a structure with crosslinked monomer units or crosslinked polymer units present at concentrations less than a critical gelation concentration, and the gel precursor cluster has a relationship of G' < G" where G' represents a storage elastic modulus and G" represents a loss elastic modulus. The hydrogel has a polymer content of 50 g/L or less, a storage elastic modulus G' of 1 to 10,000 Pa at a frequency of 1 Hz, and a fractal dimension of 1.5 to 2.5.
本发明提供了一种用于眼科治疗的凝胶材料,可用作合成
玻璃体,它是一种新型眼内填塞材料,具有较低的膨胀压力和适当的弹性力,对眼部组织,特别是视网膜无毒性,并能长期稳定地保持填塞效果。
一种用于眼科治疗的凝胶材料,包括一种
水凝胶,其中凝胶前体团交联形成三维网络。凝胶前体簇具有交联单体单元或交联聚合物单元的结构,其存在浓度小于临界凝胶化浓度,凝胶前体簇具有 G' < G" 的关系,其中 G' 代表储存弹性模量,G" 代表损失弹性模量。
水凝胶的聚合物含量为 50 克/升或更少,在频率为 1 赫兹时,储存弹性模量 G' 为 1 至 10,000 帕,分形维数为 1.5 至 2.5。