Pattern Laser

Abstract

To provide a pattern laser comprising a plurality of laser devices and enhanced in the usability.SOLUTION: Each of the laser devices emits a treatment laser beam into an optical fiber forming an optical fiber bundle. An optical coupling module is associated with the laser devices and the optical fibers for coupling a treatment laser beam into the associated optical fiber. A controller controls operation of the laser devices by selectively turning on or off one or more of the laser devices so as to form a laser treatment pattern at an end of the optical fiber bundle extending from the laser devices. A delivery system images the output from the optical fiber bundle to a treatment site.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to the field of laser devices, and more particularly to ophthalmic laser devices and methods of using ophthalmic laser devices for the treatment of eye diseases. [Background technology]

[0002] Laser therapy has been widely accepted as a preferred treatment for many ophthalmic diseases. For example, pan retinal photocoagulation (PRP) using an argon laser is used to treat diabetic retinopathy, which is the leading cause of visual impairment in working-age adults worldwide. For several years, PRP has been an effective treatment to reduce the risk of serious blindness in patients with proliferative diabetic retinopathy. More recently, pattern-scanning laser techniques have been developed as a more effective alternative to PRP.

[0003] A typical pattern scanning laser method is disclosed in US Patent No. 5,399,633, entitled "Pattern Laser Treatment of the Retina" by Stanford University. The pattern scanning laser generates an output spot that can be moved from location to location on the retina in a selectable pattern. A scanner is used to redirect the laser spot. The treatment system of US Patent No. 5,399,633 operates in a raster scanning manner according to a specific pattern.

[0004] Another example is disclosed in US Pat. No. 5,399,433 entitled "Ophthalmic Laser Treatment Apparatus" by Nidek Co. Ltd. US Pat. No. 5,399,433 discloses a system including a separate handheld cabinet and a main unit housing a laser unit. The main unit is connected to the handheld unit by an optical fiber bundle. A scanner in the main unit is controlled to direct a laser beam from the laser unit to the face of the fiber bundle in a selectable manner. A pattern is imaged onto the retina from the exit of the optical fiber bundle by optics in the handheld unit.

[0005] U.S. Patent No. 5,999,333 to Anderson entitled "Multiple Spot Phototherapy with Laser Indirect Ophthalmoscope" discloses a beam multiplexing device for generating a multiple spot or scan pattern. The beam multiplexing device is described as consisting of a combination of multiple lenses and mirrors to scan a single input beam to multiple points or to split a single input beam into multiple output beam outputs.

[0006] US Patent No. 5,999,333 to Reliant Technologies Inc. discloses a method for scanning an array of light beams along the main-scan direction while moving in the sub-scan direction. In a Reliant Technologies embodiment, scanning time is improved by transmitting a laser beam through a linear array of optical fibers to mechanically scan the linear array across the target. This arrangement is faster than some prior art techniques, but is less flexible because it requires physical adjustments to the direction of the light beam.

[0007] Another laser treatment device is disclosed in US Pat. No. 5,993,333 to Reliant Technologies Inc. This document discloses the combination of multiple laser beams into a single treatment beam, each laser beam having at least one different parameter. Although the invention of US Pat. No. 5,993,333 allows multiple laser beams to be turned on and off to generate a laser beam having a desired set of specific parameters, the device of US Pat. No. 5,993,333 does not generate a pattern scanning laser.

[0008] The above-mentioned conventional systems have many drawbacks. These beam scanning based devices generally use expensive galvanometer scanners. The maintenance costs of keeping the galvanometer scanners in reliable working condition are high. Even if other devices are used to reduce the cost of mirrors and lenses of the device of Patent Document 3, the time it takes to scan the spot over the entire pattern on the retina is a major limitation to the applicability of the therapy.

[0009] The time required to deliver a pattern is limited by the time it takes to generate the pattern, which is the number of spots delivered multiplied by the dwell time per spot plus the time to scan between spots. For a typical scanning laser, the scan time between spots is about 1 ms, and a typical dwell time per spot is about 20 ms. Dwell times below 10 ms are undesirable because short pulse exposures cause more damage to the tissue than thermal interactions. Short pulse exposures also reduce the treatment window, so the physician cannot predict dosimetry for effective photocoagulation. On the other hand, long exposure times of 30 ms or more extend the total treatment time beyond practical limits, unless the pattern is limited to a small number of spots, such as 10 spots.

[0010] Thus, there is a need for alternative methods to enhance the utility of pattern scanning lasers in ophthalmology. [Prior art documents] [Patent documents]

[0011] [Patent Document 1] U.S. Patent No. 7,766,903 [Patent Document 2] U.S. Patent No. 8,512,319 [Patent Document 3] US Patent Publication No. 2007121069 [Patent Document 4] U.S. Patent No. 7,090,670 [Patent Document 5] International Publication No. WO03 / 049892 Summary of the Invention

[0012] In one form, but not necessarily its only or broadest form, the invention relates to an ophthalmic pattern laser comprising a plurality of laser assemblies, each laser assembly including a therapeutic laser device emitting at least a therapeutic laser beam, an optical fiber corresponding to each laser assembly, the optical fibers being arranged in a fiber bundle, an optical coupling module corresponding to each laser assembly and each optical fiber, the optical coupling module coupling the therapeutic laser beam within the corresponding optical fiber, a controller for controlling operation of the laser devices by selectively turning on or off one or more of the laser devices to form a therapeutic laser pattern consisting of a plurality of laser spots at the ends of the optical fibers exiting the laser device, and a delivery system for imaging the output from the optical fiber bundle to a treatment site.

[0013] In a preferred embodiment of the present invention, the delivery system simultaneously delivers all of the laser spots that make up the therapeutic laser pattern in one exposure. In an alternative embodiment, the laser spots that make up the therapeutic laser pattern are delivered sequentially.

[0014] In another preferred form of the invention, each laser assembly includes an aiming laser as well as a treatment laser. The treatment laser preferably operates in the range of 500 nm to 1100 nm, most preferably in the range of 510 nm to 690 nm. The aiming laser is preferably in the visible portion of the spectrum, most preferably at 635 nm. An optical coupling module couples the aiming laser beam and the treatment laser beam within each optical fiber.

[0015] The optical fibers are preferably packed into a close packed optical fiber bundle at the delivery end and separated at the input end. The controller preferably also controls other laser parameters such as power, pulse duration, time between pulses, zoom, selected pattern, and pattern mode (continuous or sequential).

[0016] In another form, the invention relates to an ophthalmic pattern laser comprising a plurality of laser assemblies, each laser assembly including at least a treatment laser device emitting a treatment laser beam and a targeting laser device emitting a targeting laser beam; an optical fiber corresponding to each laser assembly, the optical fibers being arranged in an optical fiber bundle; an optical coupling module corresponding to each laser assembly and each optical fiber, the optical coupling module coupling the treatment laser beam and the targeting laser beam in the corresponding optical fiber; a controller for controlling operation of the laser devices by selectively turning on or off one or more of the laser devices to form a targeting laser pattern or a treatment laser pattern comprising a plurality of laser spots at an end of the optical fiber bundle exiting the laser device; and a delivery system for imaging the output pattern from the optical fiber bundle to the treatment site to simultaneously deliver all of the laser spots comprising the selected treatment laser pattern in a single exposure.

[0017] In another form, the present invention relates to a method of applying a laser pattern to a treatment site, the method comprising the steps of forming an optical fiber bundle having optical fibers that are close-packed and arranged in a pattern at one end and separated at the other end, associating each optical fiber of the optical fiber bundle with a laser assembly by an optical multiplexing device, each laser assembly including at least a therapeutic laser device such that lasers emitted from the therapeutic laser devices are coupled within the optical fiber, and controlling operation of the therapeutic laser devices by selectively turning on or off one or more of the therapeutic laser devices to form a therapeutic laser pattern at the end of the optical fiber bundle exiting the laser device, and imaging the pattern on the optical fiber bundle to deliver the therapeutic laser pattern to the treatment site.

[0018] The method further includes the step of selecting the treatment site with a targeting laser included in the laser assembly. Additional features and advantages of the present invention are described in the detailed description that follows.

[0019] In order to facilitate the understanding of the present invention and to enable those skilled in the art to carry out the same, preferred embodiments of the present invention are described, by way of example only, in the accompanying drawings, in which: [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a block diagram showing a pattern laser. [Diagram 2] 2 is a schematic diagram showing the connection module of the pattern laser of FIG. 1. [Diagram 3] Schematic diagram showing the optical fiber of the pattern laser in Figure 1. [Figure 4] FIG. 13 is a diagram showing an example of a treatment pattern. [Diagram 5] FIG. 1 illustrates a slit lamp assembly for use with the present invention. [Figure 6] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a pattern laser and a method of using a pattern laser. Elements of the pattern laser are shown in simplified schematic form in the drawings to illustrate specific details necessary to understand the present invention, but in a manner that is not obscuring the invention with undue detail so as to be readily understood by one of ordinary skill in the art having the benefit of the teachings herein.

[0022] As used herein, adjectival terms such as first and second, left and right, etc., are used merely to distinguish one element from another without necessarily requiring or suggesting a real relationship or order. The terms "comprises" or "includes" are intended to define a non-exclusive inclusion, meaning, for example, that a process, method, item, or apparatus consisting of a list of elements may include not only those elements, but also other elements not expressly listed, such as elements inherent in the process, method, item, or apparatus.

[0023] 1 shows a block diagram of a pattern laser 10 useful for PRP and other applications. Pattern laser 10 includes a laser fiber optic launch module 11, which will be described in detail below. Optical fibers exiting the laser fiber optic launch module 11 are packed into a close-tight bundle 12 that is connected to a delivery system 13 that images the output from the bundle 12 to the treatment site. Operation of the laser in the laser fiber optic launch module 11 is controlled by a controller 14. A user interface 15 allows a device user to provide input to the controller 14 to control operation of the laser to form a pattern. The user interface 15 may also allow control of the delivery system 13. Power for the pattern laser 10 is provided by a power supply 16.

[0024] FIG. 2 shows the laser fiber optic launch module 11 in more detail. For ease of explanation, the pattern laser 10 is described as consisting of seven pairs of treatment and targeting lasers and seven corresponding optical fibers forming a close-packed (e.g., packed hexagonal) bundle spaced at regular intervals at the output end. It will be understood that there is virtually no limit to the number of optical fibers and lasers, other than cost. The module 11 includes seven diode laser assemblies 111, each including an aiming diode 111a and a treatment diode 111b, conveniently housed in a practical arrangement. For each pair of laser diode assemblies 111, there is a corresponding corresponding optical fiber 121. An optical coupler 112 couples the output from the laser diode assemblies 111 to the optical fiber 121. The optical coupler 112 includes collimating lenses 112a and 112b for the multiple diverging laser beams emitted from the targeting diode 111a and the treatment diode 111b. The collimated treatment beam 112m is split into two paths by beam splitter 112c. The majority of the beam is reflected towards the aiming laser path 112p. A portion of the beam 112q is transmitted and projected onto a power detector 112d that monitors the power of the treatment diode 111b. The reflected beam 112p is combined with the aiming beam 112n by beam combiner 112e into the same optical path 112r. The combined beams are focused onto the optical fiber 121 at the input end by focusing lens 112 so that the aiming laser and treatment laser always follow the same optical path allowing the device user to target the treatment site. The optical combiner 112 is locked once set and does not require any additional adjustments.

[0025] A preferred treatment laser diode 111b operates in the green region of the visible spectrum for many ophthalmic applications, but is not limited thereto. A preferred laser diode operates in the wavelength range of 510 nm to 690 nm. The present invention is not limited to this particular laser diode or to any particular wavelength range. For some applications, laser diodes operating at any wavelength in the available spectrum may be preferred. The inventors have found that laser diodes are most preferred due to their compact lightweight design, low cost, and ready availability at many different operating wavelengths. However, the laser source is not limited to diode lasers. A red laser operating at 635 nm is a good choice for the targeting laser 111a. The optical fibers 121 are formed into a fiber optic bundle 12 as shown in FIG. 3. In this embodiment, the bundle 12 has seven optical fibers, but the inventors contemplate that the bundle may have any number of optical fibers between 3 and 19, although more are possible. The optical fiber bundles are preferably spaced apart, such as, but not limited to, a packed hexagon. The optical fibers may be single mode or multimode. The preferred optical fibers are multimode optical fibers having a core diameter in the range of 10 μm to 200 μm. The bundles 12 are brought together at the distal end 122 by adhesive or other bonding means to form a close-packed tip 123. The close-packed tip 123 is preferably embedded in a fiber optic connector, such as SMA, ST, FC, etc. The preferred packing is a hexagon, but the preferred number of fibers in the bundle is 7 or 19. The bundle is split into single optical fibers 121 near the proximal end 124, with each optical fiber terminating in a suitable fiber optic connector to engage the optical coupling device 112 described above.

[0026] Various output patterns can be formed by controlling the operation of the laser diode assembly 111. The controller 14 can turn each laser diode on or off individually. Thus, spot patterns can be formed simultaneously by simultaneously turning on or off all selected lasers, or sequentially by sequentially turning on or off selected laser diodes in sequence. The controller can vary the power output of each laser diode, as well as parameters such as how long the laser diodes are kept on or off. Figure 4 shows several possible patterns for a preferred embodiment. When all the laser diodes are turned on, output comes from all seven optical fibers, as shown in Figure 4(a). If no appropriate laser is turned on by the controller, the center fiber is dark, as shown in Figure 4(b). If four laser diodes are turned on, the patterns of Figure 4(c), Figure 4(d), or Figure 4(e) are formed. If only three laser diodes are turned on, the patterns of Figure 4(f), Figure 4(g), or Figure 4(h) can be formed, and if only one laser diode is turned on, a single pattern can be formed as shown in Figure 4(i). The patterns shown in Figure 4 are only a portion of the patterns that can be formed and utilized.

[0027] The laser diodes that make up the selected pattern can be controlled to be turned on simultaneously or sequentially. In the sequential mode setting, the patterned laser is scanned over the target treatment area.

[0028] The patterns are either generated automatically by the controller 14 when a therapy is selected, or manually selected by the device user using the user interface 15. The user interface 15 is preferably a touch screen to allow the user to select between a range of pre-defined applications. The user interface 15 may include a manual mode that displays the fiber optic bundle tips 123 allowing the user to touch and output individual optical fibers. Other factors such as pulse duration, pulse spacing, power levels, pattern selection, and pattern delivery format may also be controlled by the user interface.

[0029] One of the great advantages of the present invention is that it can deliver all pattern spots simultaneously as a single array with clinically optimal pulse durations ranging from 1 ms to 1000 ms. Many physicians are familiar with the coagulation dynamics that occur within this exposure time, where the therapeutic window is optimal. The present invention simplifies optimal surgery and eliminates the constraints imposed by the dwell time per spot in the pattern, since all laser sources can be turned on at the same time. Using a conventional pattern scanning laser to deliver a 10 spot pattern with an optimal dwell time of 50 ms per spot, it takes more than 500 ms to deliver each pattern, but using the 10 spot pattern of the present invention with a dwell time of 50 ms, the pattern takes only 50 ms to deliver in simultaneous mode.

[0030] Another advantage of the present invention is that the array can be moved as a block to an unexposed area for sequential exposure, allowing large areas to be covered quickly by repeating this process.

[0031] It will be appreciated that the above ophthalmic pattern lasers do not use any form of scanning or dithering to create the treatment pattern, which is determined by individually turning on or off the treatment lasers connected to each optical fiber in the fiber optic bundle.

[0032] In FIG. 5, the fiber optic bundle 12 is connected to a delivery system 13, such as a slit lamp assembly. The slit lamp delivery system is comprised of a slit lamp illuminator 131, a zooming module 132, a beam collimator 133, a mirror 134, and a focusing lens 135. An ophthalmologist 138 can view the delivery of the laser pattern to the treatment site at the back of the patient's eye and retina through the eyepiece 136 of the slit lamp microscope when the laser beam is brought into the viewing path by the mirror 134. The distal end 122 of the fiber optic bundle 12 is connected to the zoom module 132, which can expand the spot size and pattern spacing as desired. The user can manipulate the distal end 122 of the fiber optic bundle 12 to precisely position the output of the fiber optic bundle as desired. Since many physicians are familiar with slit lamps, the slit lamp can increase the convenience of pattern lasers. In other applications, other delivery systems are contemplated, such as a slit lamp adapter that may be mounted to a slit lamp microscope or laser indirect ophthalmoscope (LIO) commonly used by ophthalmologists.

[0033] As described above with respect to Figure 4, in addition to changing the pattern of the laser spots, the user can also change the size of the spot pattern by adjusting the zoom module 132. The effect of adjusting the zoom is shown in Figure 6. The pattern size can be adjusted in fixed steps, e.g., 2x, 4x, 6x, 10x, 20x, etc., or continuously. Both the spot size and the pattern size can be varied.

[0034] The above description of various embodiments of the present invention is provided for the purpose of disclosure to those skilled in the art, and is not intended to be exhaustive or to limit the present invention to one disclosed embodiment. Those skilled in the art, upon reading the above description, will appreciate numerous alternatives and modifications of the present invention as described above. Thus, while several alternative embodiments have been specifically described, those skilled in the art will appreciate or be able to implement other embodiments with relative ease. Thus, the present invention is intended to encompass all embodiments, modifications and variations of the present invention described herein and all embodiments that fall within the spirit and scope of the present invention as described above. The technical ideas contained in the present disclosure are described below. (Appendix 1) a therapeutic laser device comprising a plurality of laser assemblies, each laser assembly emitting at least a therapeutic laser beam; an optical fiber corresponding to each of the laser assemblies, the optical fibers being arranged in an optical fiber bundle; an optical coupling module corresponding to each of the laser assemblies and the optical fiber, the optical coupling module coupling a treatment laser beam into the corresponding optical fiber; a controller for controlling operation of the laser devices by selectively turning one or more of the laser devices on or off to form a therapeutic laser pattern comprising a plurality of laser spots at the end of a fiber optic bundle exiting the laser devices; and a delivery system for imaging the output from said optical fiber bundle onto a treatment site. (Appendix 2) 2. The ophthalmic pattern laser of claim 1, wherein the delivery system simultaneously delivers all of the laser spots that make up the treatment laser pattern in a single exposure. (Appendix 3) 2. The ophthalmic pattern laser of claim 1, wherein the delivery system delivers all of the laser spots of the treatment laser pattern sequentially. (Appendix 4) The therapeutic laser device is an ophthalmic pattern laser according to Appendix 1, which emits a therapeutic laser beam in a wavelength range of 500 nm to 1100 nm. (Appendix 5) The therapeutic laser device is an ophthalmic pattern laser described in Appendix 1, which emits a therapeutic laser beam in a wavelength range of 510 nm to 690 nm. (Appendix 6) 2. The ophthalmic pattern laser of claim 1, wherein each laser assembly further comprises a aiming laser device that emits a aiming laser beam. (Appendix 7) 2. The ophthalmic pattern laser of claim 1, wherein each laser assembly further comprises a aiming laser device emitting a aiming laser beam at a wavelength in the visible spectrum. (Appendix 8) 2. The ophthalmic pattern laser of claim 1, wherein each laser assembly further comprises a aiming laser device emitting a aiming laser beam at a wavelength of 635 nm. (Appendix 9) 2. The ophthalmic pattern laser of claim 1, wherein each laser assembly further comprises an aiming laser device emitting an aiming laser beam, and the optical coupling module combines the aiming laser beam and the treatment laser beam within a corresponding optical fiber. (Appendix 10) 10. The ophthalmic pattern laser of claim 9, wherein the optical combining module comprises a collimating lens, a beam combiner, and a focusing lens, and combines the aiming laser beam and the treatment laser beam and directs the combined beam into the optical fiber. (Appendix 11) An ophthalmic pattern laser as described in Appendix 1, wherein the optical fibers are arranged in a close-packed optical fiber bundle with a constant spacing and terminated by an optical fiber adapter at the conveying end and separated into individual optical fibers at the input end and terminated individually by optical fiber adapters. (Appendix 12) 12. The ophthalmic pattern laser of claim 11, comprising seven treatment laser devices and seven optical fibers, the seven optical fibers being bundled in a close-packed hexagonal shape at the delivery end. (Appendix 13) 2. The ophthalmic pattern laser of claim 1, wherein the controller also controls other laser parameters including one or more of power, pulse duration, pulse spacing, zoom, pattern selection, and pattern mode. (Appendix 14) 2. The ophthalmic pattern laser of claim 1, wherein the laser device is a laser diode. (Appendix 15) 2. The ophthalmic pattern laser of claim 1, further comprising a user interface that allows a device user to input to the control device. (Appendix 16) a plurality of laser assemblies, each of the laser assemblies including at least a treatment laser device emitting a treatment laser beam and a targeting laser device emitting a targeting laser beam; an optical fiber corresponding to each of the laser assemblies, the optical fibers being arranged in an optical fiber bundle; an optical coupling module corresponding to each of the laser assemblies and each of the optical fibers, the optical coupling module coupling a treatment laser beam and an aiming laser beam within a corresponding optical fiber; a controller for controlling operation of the laser devices by selectively turning one or more of the laser devices on or off to form a targeting laser pattern or a treatment laser pattern consisting of laser spots at the ends of the optical fiber bundle exiting the laser devices; a delivery system for imaging an output pattern from said optical fiber bundle to a treatment site to simultaneously deliver all of said laser spots that make up said treatment laser pattern in a single exposure. (Appendix 17) forming a bundle of optical fibers having a close-packed arrangement at one end and spaced apart optical fibers at the other end; Associating a laser assembly with each optical fiber of the optical fiber bundle via an optical coupling device, each laser assembly including at least a therapeutic laser device such that laser radiation emitted from the therapeutic laser device is coupled with the optical fiber; 1. A method of applying a laser pattern to a treatment site comprising: controlling operation of one or more of the therapeutic laser devices by selectively turning on or off the therapeutic laser devices to form a therapeutic laser pattern at an end of the optical fiber bundle exiting the laser devices; and delivering the therapeutic laser pattern to the treatment site by imaging the optical fiber bundle pattern onto a target site. (Appendix 18) 18. The method of claim 17, further comprising selecting the treatment site with a targeting laser included in the laser assembly. (Appendix 19) A combination of a slit lamp assembly and an ophthalmic pattern laser according to claim 1. (Appendix 20) 20. The combination of claim 19, wherein the slit lamp assembly includes a zoom adjustment, and a size of the treatment laser pattern is adjusted by the zoom adjustment of the slit lamp assembly.

Claims

1. An ophthalmic patterned laser (10) for the treatment of a disease of the eye (139), comprising: a plurality of laser assemblies (111), each of which comprises at least a treatment laser device (111b) for emitting a treatment laser beam and a targeting laser device (111a) for emitting a targeting laser beam; a plurality of optical fibers (121) arranged in an optical fiber bundle (12) having a distal end (122); a plurality of optical coupling modules (112) for coupling the treatment laser beam and the targeting laser beam to the same optical path of the optical fiber (121), the optical coupling modules (112) being associated with a laser assembly (111), each optical coupling module (112) being disposed between the laser assembly (111) and the optical fiber (121); a control device (14) for controlling operation of the treatment laser device (111b) and the targeting laser device (111a) by selectively turning on or off one or more of the treatment laser device (111b) and the targeting laser device (111a) to form a treatment laser pattern or a targeting laser pattern consisting of a plurality of laser spots at the end (122) of the optical fiber bundle (12) exiting the treatment laser device and the targeting laser device (111b, 111a); a delivery system (13) for imaging output from the fiber optic bundle (12) to a treatment site on the eye (139); An ophthalmic pattern laser, wherein the delivery system simultaneously delivers all of the laser spots that make up the treatment laser pattern in one exposure.

2. The ophthalmic pattern laser according to claim 1 , wherein the treatment laser device emits a treatment laser beam in a wavelength range of 500 nm to 1100 nm.

3. The ophthalmic pattern laser according to claim 1 , wherein the treatment laser device emits a treatment laser beam in a wavelength range of 510 nm to 690 nm.

4. 10. The ophthalmic pattern laser of claim 1, wherein said aiming laser device emits an aiming laser beam at a wavelength in the visible spectrum.

5. 10. The ophthalmic pattern laser of claim 1, wherein said aiming laser device emits an aiming laser beam at a wavelength of 635 nm.

6. 2. The ophthalmic pattern laser of claim 1, wherein the optical combining module comprises a collimating lens, a beam combiner, and a focusing lens to combine the aiming laser beam and the treatment laser beam and direct the combined beam to the optical fiber.

7. 2. The ophthalmic pattern laser of claim 1, wherein the optical fibers are arranged in a closely packed optical fiber bundle with a constant spacing and terminated by an optical fiber adapter at the conveying end, and each optical fiber is separated at the input end and individually terminated by an optical fiber adapter.

8. 8. The ophthalmic pattern laser of claim 7, comprising seven treatment laser devices and seven optical fibers, the seven optical fibers being bundled in a filled hexagon shape at said delivery end.

9. 10. The ophthalmic pattern laser of claim 1, wherein the controller also controls one or more of power, pulse duration, pulse spacing, zoom, pattern selection, and pattern mode.

10. The ophthalmic pattern laser of claim 1 , wherein the laser device is a laser diode.

11. The ophthalmic pattern laser of claim 1 further comprising a user interface that allows a device user to input to said control device.

12. a slit lamp assembly; A combination with the ophthalmic pattern laser of claim 1.

13. 13. The combination of claim 12, wherein the slit lamp assembly includes a zoom adjustment, and a size of the treatment laser pattern is adjusted by the zoom adjustment of the slit lamp assembly.

Images