What type of lasers are used in eye surgery?
What type of lasers are used in eye surgery?
LASIK uses an excimer laser (an ultraviolet laser) to remove a thin layer of corneal tissue. This gives the cornea a new shape so that light rays are focused clearly on the retina. LASIK causes the cornea to be thinner.
Which laser is best for eye surgery?
LASIK is the best known and most commonly performed. Many articles, including this one, will use the term “LASIK” to refer to all types of laser eye surgery.
What is the wavelength of excimer laser?
4. EXCIMER LASERS
| Excimer | Wavelength (nm) |
|---|---|
| ArF | 191 |
| KrF | 249 |
| XeCl | 308 |
| XeF | 351 |
What is the latest technology in laser eye surgery?
The latest development in laser eye surgery is ReLex SMILE. This is a minimally invasive, bladeless form of keyhole laser eye surgery which offers a superb alternative to more traditional forms of surgery.
What is the safest laser eye surgery?
Laser vision correction (LVC) is considered the safest eye correction surgery to obtain a “specs-free” life for patients with myopia (nearsightedness), hyperopia (farsightedness), and astigmatism (blurring of vision due to improper shape of the eye).
How many wavelengths does a laser have?
The shortest wavelengths, from 10 to 400 nanometers (nm), produce ultraviolet (UV) light. Intermediate wavelengths, from 380 to 740 nm, produce visible (VIS) light from violet to red….Power versus wavelength.
| Laser Type | Wavelength |
|---|---|
| Helium neon (red) | 633 |
| Nd:Yag* (near IR) | 1064 |
| Carbon Dioxide (far IR) | 10600 |
What is a UV laser?
Ultraviolet (UV) lasers offer extremely high photon energy, which opens up a wide range of applications that visible and infrared laser sources can’t address. The most common UV laser sources are the third and fourth harmonics on Nd: YAG providing 355 nm and 266 nm wavelengths, respectively.
What is UV laser?
What is the wavelength of co2 laser?
10.6 µm
Carbon-dioxide (CO2) lasers are powerful and comparatively efficient gas lasers emitting at 10.6 µm or at other wavelengths around 9-11 µm.
What is PRK vs LASIK?
Both LASIK and PRK use a laser to reshape the cornea, the clear outer layer of your eye that focuses light so you can see clearly. But they do it in slightly different ways. LASIK creates a thin flap in the cornea. PRK removes the outer layer of the cornea, which grows back over time.
Which is safer LASIK or PRK?
Overall, PRK is considered to be safer and more effective in the long term because it doesn’t leave a flap in your cornea. The flap left behind by LASIK can be subject to greater damage or complications if your eye is injured.
