Powerful systems for treating retinal disorders

The principle of short-pulse

Tissue-sparing treatment

Short-pulse is a sequence of bursts consisting of microsecond pulses. It is typically used to administer non-visible, subthreshold laser treatments to macular and perimacular targets, with the treated tissue showing no ophthalmoscopically observable laser effects. Studies of 532nm and 577nm have confirmed that subvisible laser treatment are clinically effective, without inducing tissue damage.

Key features

Designed for retinal photocoagulation

The Merilas 532nm and 577nm are best suited for performing retinal photocoagulation procedures, iridotomy and laser trabeculoplasty due to the following features:

  • High transmission through dense ocular media.
  • Success with refractory and sub-clinical oedema.
  • Consistent laser lesions for fast procedure time.
  • Low treatment power means increased patient comfort.
  • In short-pulse mode tissue sparing treatment – absolutely no scarring.

Haag-Streit slit lamp adapter

Works in synergy with BQ & BM 900 slit lamps

Haag-Streit BQ 900 and BM 900 slit lamps offer precise and safe treatment, due to their internal beam path, as there are no external parts which could be misaligned. The laser is directly linked to the illumination path of the slit lamp, meaning no additional obstacle stands between the slit lamp front lens and the patient’s eye. A seamless spotsize from 50μm to 5000μm offers an extensive range displayed on the control panel of the laser.

Accessories

Laser indirect ophthalmoscope & endoprobes

The laser indirect ophthalmoscope is best suited for performing retinopathy or prematurity and it is also ideally suited for treating patients in the supine position, with a fully enclosed optic for optimal protection.

The endoprobes are the right choice for endo photocoagulation procedures, offering a selection of straight and angled probes to suit the needs of the doctor.

MR Q Combo

Easily switch between treatments

MR Q Combo is a versatile laser system which has been designed to save space and maximize treatment possibilities. MR Q combo allows you to easily switch between treatments with the unique parking station, which protects the sensitive optics of the slit lamp adapter when the photocoagulator is not in use. The specially designed slit lamp adapter ensures the safe handling of the two lasers.

Combination laser package

Key features

MR Q Combo can be easily combined with the Merilas 532nm or the Merilas 577nm short-pulse laser:

  • MR Q Nd:YAG laser features renowned precision optics and an LED slit lamp, with 5 magnification steps from 6x up to 40x
  • The Merilas 532α console has a crystal detachable control panel. Swiss engineered, robust and aluminium-made
  • The slit lamp adapter and parking station provides freedom and versatility
  • Stable and robust twin column table
  • Can safely treat anterior and retinal conditions.

Frequently asked questions

Meridian lases FAQs

At Haag-Streit UK, we are always happy to support our customers with any queries on our range of products. As a first port of call, we have put together a comprehensive list of Meridian lasers frequently asked questions.  

Read more

Service

Haag-Streit UK Service Division

Let us service your laser

The Haag-Streit UK Service Division is an authorized service agent for Meridian lasers. Our Field Service Engineers are trained by the manufacturer to use their specialist tools, so all equipment is serviced to the manufacturer's standard. During a service visit we test the full functionality of the laser including its safety features, check the laser alignment and adjust where required, and measure the laser output power. Book a preventative maintenance visit now or take-out one of our service contracts, for full peace-of-mind.

Merilas 532SP Merilas 577SP
General
Class IV IV
Laser module Double Nd:YAG CW Double Nd:YAG CW
CW pulse duration (ms) 10 - 5000 10 - 5000
CW pulse interval 10 - 5000 10 - 5000
SP duration (ms) 0.01 - 9.5 0.01 - 9.5
SP interval (ms) 0.1 - 9.5 0.1 - 9.5
SP-mode setting Shortpulse® (continuous wave, chopped) Shortpulse® (continuous wave, chopped)
Duty cycle (%) 0.5-95 5 - 50
Maximum energy (mW) 50 - 2500 50 - 2500
Aiming beam (nm) 635. Diode. (0-1 mW in 9 Steps) 635. Diode. (0-1 mW in 9 Steps)
Cooling system TEC TEC
Weight (kg) 7 kg / 15.43 lbs 7 kg / 15.43 lbs
Power rating (V) 100 - 240, 50/60 Hz 100 - 240, 50/60 Hz
SLA
Detachable remote control
LIO
Probes Retinal Retinal
Laser
Wavelength (nm) 532 577
● standard | ○ optional | − not available | □ not recommended

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