The excimer laser has shown a rapid development from the laboratory to its current clinical use for refractive surgery. Operating at 193 nanometers, the excimer laser is able to sculpt the corneal surface meticulously, altering the surface optical architecture to correct refractive errors.
The concept of the human aberration was presented and analyzed why causing aberration. We applied Zernike polynomials to describe the shape of an aberrated wavefront in the pupil of an optical system fitted the data to a Zernike series to reconstruct the wavefront aberrations of living human eye. Given the expressions aberration guided cornea ablation depth, mechanism of action of excimer laser corneal surgery, the schema of the excimer laser aberration correction system.
The experimental results show that the integration of microsensors for microsurgery robot's end-effector can satisfy the design requirements, and the robotic end trephine can accurately fulfill the surgical task of corneal cutting.
Fast deposition of hydroxyapatite coating on titanium to modify cell affinity of corneal fibroblast in vitro
It is shown for the first time that HA coating can significantly enhance the adhesion and proliferation of rabbit corneal fibroblast in comparison with that of pure Ti.
We studied 56 biopsy samples of conjunctiva and 50 corneal discs excised from 28 patients with acquired keratoconus cornea.
Necrobiotic changes have been revealed in epithelium of the corneal discs going by the pathways of apoptosis-programmed cell death-and oncosis-initial edematic stage of necrobiosis.
Rhesus putative epidermal stem cells are being investigated for their potential use in regenerative corneal epithelium-like cells, which may provide a practical source of autologous seed cells for the construction of bioengineered corneas.
To develop a rabbit corneal endothelial (RCE) cell line, in vitro culture of RCE cells was initiated from Oryctolagus curiculus corneas and a novel RCE cell line was established in this study.
To initiate the primary culture of RCE cells, corneas from rabbit eyes were sliced and attached into glutin-coated wells with endothelial cell surface down.
Corneal antigens were prepared from donor corneas not suitable for surgery.
Samples of a PHEMA sponge were implanted in rabbit corneas and explanted at predetermined time points (2, 4, and 12 weeks).