166 OPHTHALMOLOGY • INSTRUMENT AND BOOK SUPPLEMENT 1983

measuring range; when using calibration curve, r = ±0.5 mm x 10-2 mm

Literature available Price $3,410 One-year warranty

Lasers and Photocoagulators

Biophysic Medical S.A. Ophthalas

Specifications: Argon and/or Krypton photocoagulator with modular

design. Microprocessor controlled. Adaptable to all types of slit lamp, spot sizes through

parfocal zoom. Twin fiber system enabling use in the operating

theater on OPMI 6 microscope with motorized slit lamp and endocular probe.

Other advantages Remote control box can be positioned in the most

convenient place for the user Possibility of adding a Krypton tube to an Argon

photocoagulator and vice versa Option: green selector Laser tubes from SPECTRA PHYSICS, leading world

manufacturer: proven reliable technology low running temperature (80°C) so, no precautions

necessary when stopping or starting the laser two different tubes can run off one power supply.

Synemed is the exclusive USA distributor of this product

Price on request One-year warranty on spare parts and labour

Picolas Picosecond YAG Laser (Aron-Grieseman patentjEssilor tech­nology)

Product specifications: Modelocked neodymium Vag laser.

Used in anterior and middle segment surgery with the following advantages: outpatient treatment anaesthetic superfluous as treatment is painless immediate effect with no convalescence.

Conditions liable for this type of treatment are: anterior capsulotomy before extracapsular lens

extraction secondary cataract membranes with or without

implant synechia between iris and capsule or iris and

implant cyclitic membranes pupillary block glaucoma trabeculoplasty goniotomy in congenital glaucoma vitreous strands

Synemed is the exclusive USA distributor for this product

Literature available Price on request One-year warranty on spare parts and labour

Coherent, Inc. System 9900 YAG Ophthalmic Laser

System 9900 delivers Q-switched, pulsed UAG wavelength for performing capsulotomies and discission of some vitreous strands and membranes.

Can be easily coupled with a Coherent Argon Laser to provide a thermal mode

Unique twin-beam HENE laser-aiming system provides the System 9900 with precise control of energy

Full versatility of energy control (0-15) mi), in either a single pulse mode or a burst (series of pulses) mode

Coherent's long experience with lasers offers the only "second generation," designed YAG laser on the market

Very compact and easily moveable Does not incorporate an optical arm-a known potential

alignment problem

PERFORMANCE SPECIFICATIONS

Laser Wavelength:

Energy:

Mode Structure:

Pulse Width:

Beam Transmission:

Repetition Rate:

Pulse Counter:

1.06 microns.

15 millijoules per pulse (max.).

Low order mode.

15 nanoseconds (max.).

Direct and coaxial.

Average Rate: 2 Hertz. Burst Mode: 1 to 9 pulses (selectable) at 50 Hertz.

Burst counter automatically counts laser pulses and shuts off beam at end of selected pulse train. Cumulative counter sums pulses between resets.

DESCRIPTION OF PRODUCTS 167

PERFORMANCE SPECIFICA nONS continued

System Configuration: Laser /slit lamp assembly; power table; and control module.

Safety Filters: Dual safety filters-one for YAG energy and one for argon energy.

Controls and Indicators: Conveniently located for ready accessibility.

Energy Selector: Allows user to preset the pulse energy. (0 to 15 millijoules)

Input Power: 115 VAC/60 Hz/5 Amps maximum; other electrical requirements available.

Delivery System: Rodenstock RO 2000 Slit Lamp; mounted on electric power table.

Cooling Requirements: No external cooling required .

Laser Head Size: 18.3 x 8.4 x 3.1 inches. (46.5 x 21.3 x 7.9 cm)

Table Top Size:

Unit Weight:

Literature available Price $79,950

36 x 18 inches. (91.4 x 45.7 cm)

150 Ibs. (68 kgs) max.

Innova System 920 Photocoagulator/Laser The Innova System 920 photocoagulator is Coherent's

new multiwave length photocoagulator including argon blue-green, argon green only and krypton red wavelengths. It features new, state-of-the-art Innova tubes. The new Innova tube designed, patented, and manufactured at Coherent is composed of a rugged ceramic/tungsten steel design which maximizes tube life, power output. and product usages. The 920 also features other features such as auto repeater unit, heads up display, remote power control, flexible fiberoptic delivery system and portable lighted digital control module.

Available options and delivery systems also include: endophotocoagulation probe, microsurgical adaptation, dermatologic handpiece and others

Spot Sizes 50, 100, 200, 500, 1 000, 2000~, continuously adjustable (Parfocal at 50 and 1 OO~)

Time Settings .01 (new exclusive), .02, .05, .1, .5, 1.0, 2.0, 5.0, continuous

Power (to the cornea) 4.0 watts argon blue-green 1.5 watts argon green only .75 watts krypton red

Dimensions 30" x 66" x 18" (76 cm x 168 cm x 46 cm) Note-the INNOVA System 920 is also available in ar­

gon only or krypton only with the second tube to be added at a later date

Literature available Price on request One-year warranty

Innova System 910 Photocoagulator (Argon or Krypton) The Innova System 910 photocoagulator is Coherent's

new generation of single tube photocoagulators for use in ophthalmology. Available in Argon or Krypton the 910 features the new Innova tube. Laser light is transmitted via a flexible fiberoptic delivery system which can be coupled to multiple delivery systems.

Slit lamps available include Zeiss 30 SL, Haag Streit 900 and Rodenstock RO 2000. Delivery systems available include endophotocoagulation probe, dermatologic handpiece, microsurgical system and others for maximum utility.

Spot Sizes 50, 100, 200, 500, 1 000, 2000~, continuously adjustable (Parfocal at 50 and 1 OO~)

Time Settings .01 (new exclusive), .02, .05, .1, .5, 1.0, 2.0, 5.0, continuous

Power (to the cornea) 4.0 watts argon blue green 1.5 watts argon green only

or .75 watts krypton red

Dimensions 30" x 66" x 18" (76 cm x 168 cm x 46 cm)

Price on request One-year warranty

CooperVision Surgical Systems Division Horizon Argon Laser Photocoagulator, Model 3500 and Model 4000

Parfocal at all spot sizes Laser beam and slit lamp illumination source coaxial For anterior or posterior segment surgery Fiber optic delivery system Laser delivery system adapts to most Haag-Streit.

Zeiss, and similarly constructed units without need to modify slit lamp

Delivery system can be stored within the laser console cabinet allowing the slit lamp for other uses.

BEO (Beryllium Oxide) laser tube fast warm, avoid treatment delays; no special cool down requirements.

Air-cooled Model 3,500 PFL or Water-cooled Model 4000 PFL versions available--Iet your environmental conditions determine what is best for you

Operator convenience-lighted controls; digital panel meter for power readout; push-button exposure time

168 OPHTHALMOLOGY • INSTRUMENT AND BOOK SUPPLEMENT 1983

selection and variable intensity aiming beam are just a few of the many convenience features

Advanced, easy to use, and reliable Price $33,950 One-year warranty

Photocoagulator Log 3 Portable Xenon Light Coagulator Price $17,800 One-year warranty

Edward Weck and Company, Inc. Britt Models 150 (Argon, Krypton) and 152 (Argon)

Ophthalmic Lasers. The Britt Laser by Weck is a pulsed laser system featuring air-cooling, peak power of 25 watts, and a unique perforating mode designed especially for glaucoma treatment.

Accessories include a special green adapter system and endo-illumination probe.

Price $33,000-$38,000 (including slit lamp) Two-year warranty

Endocoagulator Model 8 Five watt argon laser (2 watts green only) 1.5 watt krypton The Endocoagulator Model 8 is versatile, can be used in

the O.R. with the endo ocular probe at time of vitrectomy, or moved to an out-patient area for slit lamp attachment

The only portable argon laser available in the medical industry

Can also be used in a hospital setting by the following specialties using easily attachable accessories:

Ophthalmology, Dermatology, Plastic, General, Gastrointestinal, Urology, Gynecology, Fertility, Otolaryngology, Neurosurgery, Vascular, Orthopedics

Literature available Price $30,000 One-year warranty

Lasertek, Inc. Argon-Krypton Coagulator Laser Model #41AK

Choice of slit lamp: Zeiss 30 SL with separate· eye safety filters for argon and krypton laser or traditional Haag-Streit 900 slit lamp

Multiple safety features include dual timers, dual shutters, system failure detection with beam monitoring diode

Switching from argon to krypton in less than a minute thanks to BeO-laser tube

No system cooling time required Stable laser output during operation is achieved by use

of a stabilized power supply and beryllium oxide laser tubes operating at low temperatures

Laser service backed by Spectra-Physics, California, USA, the biggest laser manufacturer in the world

Laser power: 3 W argon and 0.7 W krypton laser power at cornea, continuously adjustable, digital display

Principal wavelengths: Argon: 488.0 nm (blue) and/or 514.5 nm (green); Krypton: 647.1 nm (red)

Exposure time: 0.02- 9.99 sec in steps of 0.01 sec Focus spot sizes: Mirror arm: 50, 100, 200, 500, 1000

~m Fiber optics: 50, 100, 200, 500, 1 000 ~M , continuous dial

Installation requirments: Electricity: 3-phase, 208 v AC 35A per phase (or 380 v AC, 20 A with step down transformer); Cooling water: flow rate approx. 2.2 gpm, pressure approx. 2 kg/cm2, maximum temperature 35°C

Table dimensions: length 1.5 m, height 75 cm, width 57 cm

Weight: 140 kg Price $53,500, twelve-month warranty (system and tube

warranties) Also available in argon only and krypton only,

retrofittable at any time to a 41AK Model For limited budgets Model 40 A Argon Laser or Model

40K Krypton Laser Coagulators are available

OMS Optical Micro Systems, Inc. OMS/Karren berg A.L.E.S. (Argon Laser Emission Splitter)

A unique system for converting any existing argon laser photocoagulator from one emitting at both 488 nm and 514.4 nm to one emitting at 514.5 nm, with minimal power loss at this wave length. In effect this device separates the green and blue beams so only the green beam is reflected on the retina, protecting the retina from possible blue light damage

This portable, light weight device requires no installation, modification or retrofitting of the existing laser system. It is external to the power source and delivery system

Price $895 Six-month warranty

Storz Instrument Company Storz 1064 a-Switched VAG Laser VAG 1064

a-switched pulsed VAG Laser, output energy .5--.15 millijoules (MJ)

Pulse width-15 NS Spot size 15 microns Self-contained water cooling system Convergence angle 18° Weight 300 Ibs Options--burst mode, thermal mode, T.V. attachment,

observer tube, full-line of laser lenses Literature available Price $82,000 One-year warranty, service contract optional

VTI-Vector Technology International, Inc. Microruptor, Model MR-2

Mfg.--Lasag, AG Switzerland; Distributed in the USA by VTI

This laser was developed by Prof. Franz Fankhauser, University of Bern.

Features: a-switched cutting in fundamental and multimode VAG photocoagulation Zeiss optics Contact lenses designed for each application Burst mode

DESCRIPTION OF PRODUCTS 169

Distal focus shift Dosimetry printer

Clinically tested for seven years. Applications in Europe include capsulotomy,

membranotomy, iridectomy, vitreous bands and strands, synechiotomy, trabeculoplasty, retinal photocoagulation

Price $110,000. One-year warranty

Laser Lenses Ocular Instruments, Inc. Thorpe Four-Mirror Gonio Laser Lens

Four opposing mirrors set at 62 0 for viewing and laser procedures in anterior chamber angle

Literature available Price $290; 180-day warranty

Fundus Laser Lens (Goldmann Style), #OGFA This fundus lens provides clear visualization of the

posterior pole for laser photocoagulation procedures. The posterior surface is contoured to match corneal curvature and eliminate air bubbles.

Literature available Price $175; 180-day warranty

Thorpe Four-Mirror Vitreous-Fundus Laser Lens, #OT4MFA Designed with two opposing mirrors set at 64 0 for

viewing the region of the ora serrata to the equator. Another pair set at 70 0 to view the equator to the posterior pole. The posterior pole can be viewed through the axis of the lens.

Literature available Price $290; 180-day warranty

Wilson Three-Mirror Fundus Lens, #OW3MFA Available with anto-reflecting glass for laser

photocoagulation procedures Price $290; 180-day warranty

McLean Prismatic Fundus Lens, #OMFA The McLean Prismatic Fundus lens is a 25 0 prism

fundus contact lens specifically designed to facilitate visualization of the retina and related structures in the mid peripheral fundus. The lens readily brings the midperipheral zone into view. Having a small scleral flange the lens will stay in place without being held and can be manipulated or rotated via the plastic collar

Price $215; 180-day warranty Abraham Iridectomy Lens, #OAIA

The Abraham Iridectomy Lens is designed to facilitate full thickness laser iridectomies and protect against superficial corneal burns. The lens consists of a specially modified Goldmann-type fundus Lens with a small plano-convex button bonded to the anterior surface

Price $380; 180-day warranty Ritch Trabeculoplasty Laser Lens, #ORTA

The Ritch Trabeculoplasty Laser Lens is specifically designed to provide gonioscopic viewing with the addition of plano convex button lenses on the anterior

surfact to facilitate target magnification and beam spot minification for this filtering procedure. The anterior surface has a high efficiency anti-reflective coating to cut energy transmission losses while increasing brightness and contrast of the transmitted image. The cornea contact surface is of a multicurve design which provides for maximum patient comfort, elimination of air bubbles, and reduces cornea distorting pressure. The holding flange has been extended to provide a serrated grip for ease in handling

Price $450; 180 day-warranty Karickhoff Laser Lens, #OJKFA

The Karickhoff Lens provides four mirrors of 62 0 , 67 0 ,

76 0 , and 80 0 plus a central axis view. Unique "depth dots" mark each mirror at its base, from one to four dots. The mirrors provide fields of view that overlap exactly, providing observation of the anterior chamber, angle, ora serrata, midequator, and midperipheral area

A 2-mm scleral flange helps retain lens position during examination

Price $290; 180-day warranty Ocular Three-Mirror Universal Laser Lens, #OG3MA, #OG3MFA, #OG3MSA, #OG3MIA, #OG3MPA

Three mirrors angled at 59 0 , 67 0 and 73 0 arranged at 1200 intervals permit viewing of the fundus and anterior chamber angle. The posterior pole is also observable through the axis of the lens.

Literature available Price $290 to $315; 180-day warranty

Single"Mirror Gonio Laser Lens, #OSMGA A small diameter lens with one 62 0 mirror for

trabeculoplasty or iridectomy Literature available Price $215; 180-day warranty

Lenses Multi-Optics Corporation Varilux Two Progressive Addition Lenses

One piece spectacle lens aspherically ground to provide distance, intermediate and near corrective powers. Power Change is uninterrupted and stabilizes to full addition after 14 mm

Current availability includes: Orma hard resin 75 and 80 mm bland-glass: clear and photochromatic 70/75 mm bland, high index 70 mm bland. Also available in Varilux 2 UVX-Light, an ultra-violet absorbing hard resin for IOL or contact lens corrected pseudo-phakes or uV sensitive presbyopes.

Literature available Price varies with laboratory Warranty yes

Nikon, Inc. Nikon Aspheric Lenses, #78039

Available in three powers: 14, 20, and 28 diopters Clear coat Price $180 for 14 diopter lens, $180 for 20 diopter

lens, $200 for 28 diopter lens