Micro-incision cataract surgery means that the incision is less than 2.
At present, there are two kinds of intraocular lenses designed and applied to small incision cataract extraction: ①Acri.
Intelligent intraocular lens, hydrophobic acrylate material, integrated design, can pass 1.4.
Mm incision, after implantation, has good stability in the capsular bag and has certain pseudo-adjustment force. ② Thin.
OptX intraocular lens is a hydrophilic acrylate material, and its optical part is ultra-thin and curly, and the possible minimum value is 1.0.
Mm incision can obtain near and far vision similar to traditional foldable intraocular lens.
2. Implantable miniature telescope intraocular lens
Implantable microscopic telescope intraocular lens is suitable for patients with macular degeneration cataract, which can enlarge the object image by 3 times, provide the patient with the central vision of one eye, while retaining the peripheral vision of the opposite eye, and improve the quality of life. At present, this kind of crystal is still under clinical observation.
3. Optically adjusted intraocular lens
It consists of cross-arranged silica gel polymer matrix and uniformly distributed photoreceptors. When the optical part of the lens is irradiated with near ultraviolet rays, the photoreceptor can polymerize and migrate, thus changing the thickness of the lens and fine-tuning the in-situ myopia, hyperopia and astigmatism. It is the most promising intraocular lens to meet the personalized requirements.
In a word, the development of intraocular lens materials and design has greatly improved its biocompatibility, postoperative visual function, accommodation function and light protection. The widening of intraocular lens types also gives clinicians more choices, and doctors can choose implants individually according to different patients' conditions and requirements. There may be more research on injection materials and smart materials in the future. The intraocular lens that can be injected into the intact capsule in liquid state and quickly solidified into gel state after injection and retain its accommodation ability will be the direction of future research and development.
Public ophthalmology