Femto second multi shooting for eye surgery
Provided herein are methods for non-invasive ophthalmic surgery based on femto second multi shooting (FSMS) laser techniques. In one embodiment the FSMS laser technique is directed to corneal stroma. In another embodiment the FSMS laser technique is directed to crystalline lens.
1. A method of ophthalmic surgery comprising:
generating a plurality of laser bombardments using a FSMS laser;
directing the plurality of laser bombardments towards a corneal stroma structure so that the plurality of laser bombardments respectively impact the cornea in areas between collagen fibers thereby forming a plurality of microvacuoles;
wherein a distance between any two adjacent laser bombardments within the plurality of laser bombardments is equal to an integer multiple of 63 nanometers; and
wherein the plurality of laser bombardments have a varying impact density at different depths of the corneal stroma and thereby treating corneal aberrations.
2. The method of claim 1 , wherein the ophthalmic surgery comprises refractive surgery.
3. The method of claim 1 , wherein the plurality of laser bombardments decrease links between collagen fibers.
4. The method of claim 3 , wherein the plurality of laser bombardments increase the plasticity of the corneal stroma resulting in a reduction of a mechanical resistance to an intraocular pressure.
5. The method of claim 1 , comprising orienting the plurality of laser bombardments so that the density of the plurality of laser bombardments increase from a bottom layer of the cornea to an upper layer of the corneal stroma and thereby treating myopia.
6. The method of claim 1 , wherein the plurality of laser bombardments treat hyperopia.
7. The method of claim 1 , wherein the plurality of laser bombardments create ectasia on an optic zone to treat hyperopia astigmatism.
8. The method of claim 1 , wherein the plurality of laser bombardments impact onto an external ring surface of the corneal stroma thereby treating myopia astigmatism.
9. The method of claim 1 , wherein the plurality of laser bombardments create a central myopic island for treating presbyopia.
10. The method of claim 1 , wherein the plurality of laser bombardments using the FSMS laser reduces destruction of surrounding tissues.