Product sheet · Ellex ASTRALASTRAL®
SLT laser with built-in OCT: see the trabecular meshwork, then treat lens-free in under three seconds.
ASTRAL is a selective laser trabeculoplasty (SLT) platform with an integrated OCT visualization system. It shows 120 radial OCT views of the iridocorneal angle so the clinician can target the trabecular meshwork accurately, then treats transsclerally with no contact lens and no gel.
- < 3 streatment time
- 120radial OCT views of the angle
- 69.8%of SLT patients drop-free at target IOP (LiGHT)
- 0contact lens or gel needed
Key features
- 01
OCT-guided targeting
120 cross-sectional radial OCT views of the anterior chamber. ASTRAL Intelligence shows the matching OCT for each potential treatment location.
- 02
Lens-free and gel-free
Gentle non-contact transscleral delivery. No sustained blurred vision, so patients return to daily activities within minutes.
- 03
About 15 seconds per patient
Locate and focus ~7 s, acquire OCT ~5 s, treat in under 3 s, with outcomes comparable to traditional SLT.
- 04
More patients, lower cost
A streamlined setup and workflow means more glaucoma patients treated per hour, at a lower cost per treatment.
- 05
SLT is first-line
Recommended as a first-line glaucoma treatment by AAO, EGS, APGS and WGA after the LiGHT trial.
- 06
Comfortable for both sides
15.6″ HD touchscreen on a 270° articulated arm lets the clinician sit beside the patient. A forward-angled headrest improves fixation.
Who it's for
Ideal for
Clinical uses
- Open-angle glaucoma (OAG)
- Ocular hypertension (OHT)
- Selective laser trabeculoplasty (SLT)
Technical specifications
SLT laser
- Type
- Q-switched frequency-doubled Nd:YAG
- Wavelength
- 532 nm
- Energy
- Adjustable 1.1–1.9 mJ
- Burst mode
- Single pulse only
- Spot size
- 400 µm
- Beam divergence
- ≤ 0.031 radians
- Maximum repetition rate
- 50 Hz
- Pulse width / duration
- 3 ns ± 20%
- Nominal Ocular Hazard Distance (NOHD)
- 40.8 m
- Cooling
- Air cooled
OCT module
- Line sensor type
- InGaAs
- Number of pixels
- 1024
- Pixel height
- 250 µm
- Pixel pitch
- 12 µm
- Maximum line rate
- 40 kHz
- Digital output format
- 16 bit GigE
Common features
- Weight
- 38 kg
- Dimensions (H × W × D)
- 530 × 680 × 850 mm
- Screen
- Color touch screen, 15.6″ HD, 1920 × 1080, on an articulated arm rotatable through 270° around the platform
- Computer
- PC tablet, Windows 11 IoT
- Network connectivity
- LAN connection, DICOM compatible
- Power supply
- 100–240 VAC single phase, 50/60 Hz, 300 W
- Operating conditions
- +15 °C to +35 °C / 35% to 85% relative humidity, non-condensing
- Storage and transport
- −10 °C to +55 °C / 10% to 85% relative humidity, non-condensing
- Standard accessories
- Safety glasses, laser safety sign, dust cover
- Optional accessories
- Motorised height-adjustable table
Source: Ellex brochure. Specifications are subject to change without notice. Open the original brochure.


