The PASCAL Laser Indirect Ophthalmoscope, with eye safety glass shield, is a non-intrusive, multiple application, medical laser product that is usually worn by the doctor on his head and is utilized in conjunction with a corresponding handheld ophthalmoscope for increased vision access to the near peripheral of the patient's eye. This technology offers a way to increase visual field range and reduce the need for operator intervention for the exact visual field range of a patient. It is designed to improve the farsightedness or nearsightedness of a certain portion of the visual field. It can also correct astigmatism. The device uses two laser beams, a high-power laser beam for the accommodation portion of the LASIK (laser-assisted in-situ keratomileusis) procedure and a lower energy beam for the peripheral region to correct astigmatism. For instance, in December 2019, a group of researchers from the Department of Ophthalmology, Germany completed their clinical study concluding that OCTA (optical coherence tomography angiography) can identify vessel density in the peripapillary sector.
LASIK laser indirect ophthalmoscope is also referred to as Trifocal LASIK. The application of this eye cosmetic is done with the help of computer-generated programs in which an image of the eye is produced by digitally controlled and computerized methods and a map of this eye is then generated on the computer. This map is then printed on a piece of paper that is shaped like the front of the glasses. A piece of fabric is then laid over this fabric and a thin layer of a gel lens is then placed over the map of the eye so that when the laser beam enters the eye, it imparts light directly onto the fabric thus performing the desired treatment. Since this method has proven to be effective and less painful, the demand for this technology is growing steadily and is being used by more surgeons.
Another type of LASIK laser indirect ophthalmoscope is the monochromatic green laser. Unlike the two previously mentioned types, the application of these optics is carried out with the use of a green laser beam that produces zero distortion to vision. This optics is also very popular since the green color of the laser beam imparts zero reflections to the retina, thereby improving vision.