JPS5829627A - Drilling method of contact lens - Google Patents

Abstract

PURPOSE:To obtain a contact lens through which difficulty in breathing of cornia cells is prevented, whose continuous use for a long period is made possible, and which has no concomitant burr or the like, by emitting laser beams onto a contact lens surface to form a plurality of hole in a lens. CONSTITUTION:A lens receiving table 4 is put on the surface of a base table having a built-in computer 3. A drilling apparatus 2 is provided with a laser beam oscillating section 5 in communication with the computer, and is located just above the lens receiving table 4. A contact lens 1 is placed on the lens reeiving table 4, and the oscillating section 5 is oscillated by the computer in accordance with a required hole diameter, a required number of the holes and a pattern of the holes that will meet the eyesight and constitution of the user of the lens, so that laser beams are emitted from a laser oscillating opened 5a. By the laser beams the contact lens is burned and carbonized, and further the evaporation is caused, so that a plurality of prescribed fine holes 8 are formed in the contact lens.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a contact lens l-L/lens perforation T/, which is used to perforate a large number of small holes on the surface of a contact lens. , : and its apparatus.

Conventional hard contact lenses are worn to cover the surface of the cornea of the eyeball in a lid-like manner, and the tears that accumulate between the lenses act as a lens to correct visual acuity.

This caused the cells in the cornea to become in a state similar to a type of breathing difficulty, which often resulted in corneal pain and redness. In an effort to solve this problem, soft contact lenses have recently been developed that are made from a water-based, soft material.However, since these soft contact lenses are water-based, bacteria can easily grow on them, so they must be sterilized before and after each use. Because they surround the surface of the cornea, similar to hard contact lenses, it is difficult for corneal cells to absorb oxygen from the outside. Therefore, it is difficult to manage the lenses, and they also have drawbacks such as being unable to be used continuously for a long time and being very expensive.

As a way to make it possible to use the lens continuously for a long time without making it difficult for the corneal lining of the eye to breathe, a method of drilling a large number of small holes on the surface of the lens was considered, and more research has been done than before. The biggest drawback was that jagged edges formed around the small holes, which irritated the sensitive cornea and were unsightly.

This invention was developed to eliminate the following drawbacks, and involves punching a large number of small holes on the surface of a contact lens using a laser beam. The details are as follows: (1) 8.1 indicates the contact lens to be drilled, and 2 indicates the drilling device. A lens pedestal 4 is provided on the surface of the pedestal, and a laser beam oscillation section 5 is provided directly above the pedestal 3, and this laser beam oscillation section 5d is connected to a computer 3. The diameter, number, perforation pattern, etc. of the small holes are stored in the lens 1 and 3 in accordance with the visual acuity or physical constitution of the contact lens user (for example, whether he or she is prone to tearing). On the other hand, a magnifying glass 6 is provided separately from the laser beam oscillation unit 5, and this magnifying glass 6 is installed, for example, in an iQl+
It is arranged so that it can be rotated about 7 as a fulcrum so that it comes directly to the second position of the lens holder 4, and furthermore, a video television 9 is provided on the base in connection with the magnifying glass 6.

When drilling a contact lens 1, first place the contact lens 1 to be drilled on the lens holder 3, and use a computer to determine the diameter, number, and drilling pattern of the small holes according to the visual acuity of the user of the contact lens 1. 3 causes the laser beam oscillation part 5 to emit a signal, and the laser emission part 5 is operated according to this belief to emit a laser beam from the laser oscillation port 5a, and the contact lens 1 is emitted by this laser beam.
is carbonized by cauterization, and further evaporated to form a required small hole 8 on the surface of the contact lens 1.

Next, the contact lens J is enlarged with a magnifying glass 6 in order to check the perforation finish condition, and the contact lens J is imaged on a video television 9 to a size that can be seen with the naked eye for inspection and finishing.

Incidentally, perforation of contact lenses], fd conventional (7) can be performed not only for hard contact lenses but also for soft contact lenses, and it is also possible to perforate the cow j11L plate of a trench contact lens.

As described above, this invention uses a laser beam to cauterize, carbonize, and evaporate contact lenses to generate 4++Ii, thereby making the necessary perforations in an instant, without causing any complications such as paris, and making it possible to perform ultra-precise processing using a computer. Since small holes can be accurately drilled automatically and freely by operation, drilling the surface of the conventional J: recontact lens, which was considered difficult, has become easy. And by using a perforated contact lens, the tears can freely pass through the cornea and the cornea.
It is possible to use the lens for q hours and can be expected to last as long as 3 f hours for contact lenses.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIG. 1 is a front view of a contact lens perforated by the method of the present invention, and FIG. 2 is a perspective view of a contact lens perforation device. 1... Contact lens, 2... Puncturing device, 3...
・Co/Hikoter, 4・L/7 pedestal, 5・
・・Laser light oscillation part, 6 臥太樟, 5- 7 ・Axis, 8 ・Small hole, 9 ・Video chimp. Patent applicant: Shigeru Takatoshi, agent: Precious wood - original = 6 -

Claims (1)

[Claims] ('') A contact lens perforation T characterized by emitting a laser beam onto the contact lens dimension to be perforated or the surface of the contact lens fabric, and perforating a large number of small holes with the laser beam. Law. (2) The contact lens holder/ζ to be perforated is equipped with a lens holder on which the contact lens fabric is placed, and a laser oscillation unit with a laser oscillation port located opposite the lens holder, and this laser oscillation unit This is a contact lens drilling device which is connected to a computer that stores the diameter, number and drilling pattern of holes to be drilled.