SAP-100 Ophthalmic A-Scan and Pachymeter
SAP-100 ophthalmic A-scan with pachymetry. 10 MHz A-scan probe, 15-40 mm range, accuracy +/-0.05 mm; 20 MHz pachymeter, 150-1500 um range.
- Brand: SonoStar
- Price: On request
- Probe frequency: A-scan 10 MHz miniature probe; pachymeter 20 MHz probe (see specifications)
- Connection: Self-contained colour LCD and built-in thermal printer, works standalone; A/P probes connect to the main unit by cable
- Charging: See specifications
- Category: Ophthalmic Ultrasound
Product overview
The SAP-100 combines ophthalmic A-scan biometry with corneal pachymetry in one unit. Macular tracking lets it determine axial length, anterior chamber depth and lens thickness, and the readings feed the intraocular lens power calculation. Automatic compensation is applied for the central and the peripheral cornea, so corneal thickness can be measured accurately in both zones - which is why the unit is used widely in pre-operative assessment and in evaluating the outcome of refractive surgery.
The pachymeter probe is angled at 45 degrees, which keeps the hand out of the way when the patient is sitting at the slit lamp. A single reading and a map reading are both available, and each set of data is the average of 20 measurements, with the ultrasound waveform shown while measuring.
The unit has its own colour LCD with touch input, a foot switch for automatic or manual freeze, and a built-in fast thermal printer; it can also be connected to a PC running workstation software.
Technical specifications
Specifications
A-scan
| Item | Data |
|---|---|
| Probe | 10 MHz imported miniature probe with built-in light source |
| Measurement range | 15-40 mm |
| Accuracy | +/-0.05 mm, with macular tracking |
| Measured values | Anterior chamber depth, lens thickness, vitreous length, total length - individual values and averages |
| Measurement methods | Immersion and contact |
| Eye modes | Phakic, aphakic, dense cataract, eyes with various intraocular lenses |
| IOL formulas | Six groups: SRK-II, SRK-T, Binkhorst, Holladay, Hoffer-Q, Haigis |
| Patient data | Name and ID can be entered for later retrieval |
| Storage | 10 cases, 5 measurements per case |
| Output | A-scan waveform and IOL calculation table |
Pachymeter (P-scan)
| Item | Data |
|---|---|
| Probe | 20 MHz probe, 45-degree angled body |
| Resolution | 5 um |
| Measurement range | 150-1500 um |
| Display modes | SINGLE and MAP |
| Waveform | Ultrasound waveform shown while measuring |
| Averaging | Each data set is the average of 20 measurements |
| Reading modes | Switch between the actual value and the value corrected for intraocular pressure |
| Patient data | Name, ID and operator name can be entered |
System features
- Compact and light body.
- Several IOL calculation modes.
- Large colour LCD with touch input.
- Foot switch control with automatic or manual freeze.
- Built-in fast thermal printer.
- Can be connected to a PC running workstation software.
Specifications updated 2026-11-01
Typical applications
The application scenarios on this page describe the device based on its technical data and configuration. The actual scope of application is the one stated in the product registration certificate. Follow your institution's procedures and the instructions for use.
| Setting / department | Typical use | Configuration note |
|---|---|---|
| Ophthalmology | Ultrasound examination of the vitreous, retina and other intraocular structures | Dedicated ophthalmic probe |
| Ophthalmic biometry | Anterior chamber depth, lens thickness and axial length measurement | A-scan measurement |
| Pre-operative assessment | Central and peripheral corneal thickness measurement | 20 MHz pachymeter probe |
Usage and selection notes
The SAP-100 belongs to the ophthalmic series.
The actual scope of application is the one stated in the product registration certificate. Please confirm the model and configuration with our product department.
For contraindications and precautions, refer to the instructions for use. The device must be operated by a licensed physician with the relevant qualifications.
The technical data on this page is taken from the product technical documentation; where it has been updated, the latest version applies. The listed departments and application scenarios describe the device based on its technical data, and the actual scope of application is the one stated in the product registration certificate. This page makes no claim about clinical outcome and does not constitute clinical guidance.
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