During some ocular processes, the excimer laser lens is used to steepen or open up the cornea to allow light to focus the retina and this procedure is mainly for surgery purposes or in some medical procedures. The primitive procedures used in some eye surgery faces challenges of clarity during most of these procedures but since the advent excimer laser lens, the use of the excimer laser in corneal refractive surgery has greatly increased the safety of the procedure as the refractive correction is achieved by removing as little as 10-20% of the total corneal thickness. One would be confused about how the laser is employed in an ocular surgical procedure despite knowing how dangerous laser rays could be, well it good to know that the excimer laser is a “cool” laser, and does not generate heat in the cornea. The excimer laser lens is manufactured with a synthetic fused silica material and it has a high transmittance value in the ultra-violet wavelength range of 180 – 400nm. They have excellent performance and are ideal for focusing and imaging applications. There is no adhesive or heat absorption material used to produce these lenses, as a result, they show high resistance to ultraviolet light. The excimer laser lens is made up of some components which include Laser Focusing Lenses, laser optics windows, Spherical Lenses, Cylindrical Lenses, lens Kits, achromatic Doublet, Micro-Optics, Mirrors, prisms Substrates & Windows Beam splitters, Polarizers, Filter & Apertures, and fused silica. It comes with an air-spaced doublet, the air gap acts as a third lens element providing a greater degree of correction thereby minimizing the paraxial aberrations to attain the highest possible performance. Excimer lasers are made of mixtures of noble gas atoms such as argon, krypton, and xenon with reactive gases such as fluorine or chlorine operating in a special type of high-pressure gaseous discharge. They are therefore also known as rare gas-halide lasers.
How Excimer Laser Works
Excimer Laser principally works with ultraviolet light with a lower wavelength range which doesn’t cause any pain or discomfort, unlike infrared light which has a higher wavelength of up to 700nm making them dangerous to the eye. With the excimer UV laser lens, this shorter or smaller wavelength makes it for surgeons to carry out procedures successfully like being able to remove some cornea tissues as small as about 0.25 microns. The procedure that involves an excimer laser lens is very precise and accurate as the exact amount of cornea tissues that are supposed to remove to correct the eye defect has been removed as it is been guided with a computer. The cornea is made steeper for patients that suffer from farsightedness and astigmatism can be corrected by smoothing out any irregularities in the cornea surface to allow the light to focus properly on the retina. At Alpine Research Optics, aro company.
Application Of Excimer Laser lens
Excimer Laser is used in some medical cases like in correction of myopia or nearsightedness, the excimer laser is used to flatten the cornea. It is also employed in the ablation of the human skin, hyperopic correction, photorefractive keratectomy, etc.