The SW‑500 Portable Rebound Tonometer is a state-of-the-art ophthalmic instrument designed for accurate, non-contact measurement of intraocular pressure (IOP). With its lightweight, handheld design, the device is ideal for eye care professionals, optometrists, ophthalmologists, and vision screening programs. Combining clinical accuracy with patient comfort, the SW‑500 provides a fast, reliable, and hygienic solution for monitoring ocular health in clinics, hospitals, and field-based care environments.
This advanced tonometer integrates rebound technology, allowing non-invasive intraocular pressure testing without the need for anesthesia, and uses single-use disposable probes to prevent cross-infection. Its portable design and intuitive interface make it a must-have device for modern ophthalmic practice.
Why the SW‑500 Rebound Tonometer Stands Out
The SW‑500 is not just another tonometer; it is a professional-grade portable ophthalmic device built with both clinicians and patients in mind. Here’s why it’s preferred by eye care specialists worldwide:
1. Clinically Proven Accuracy
The SW‑500 Portable Rebound Tonometer delivers highly precise intraocular pressure measurements, validated by multiple independent clinical studies. Its measurement range of 3–70 mmHg ensures reliable readings for normal, elevated, and glaucoma-suspected IOP levels. With a minimal error margin, the SW‑500 ensures clinicians receive consistent, repeatable results.
2. Non-Contact, Comfortable Eye Examination
Unlike traditional tonometers that require corneal contact and anesthesia, the SW‑500 employs rebound technology, where the probe lightly taps the eye to measure intraocular pressure. This reduces discomfort, making it suitable for children, sensitive patients, and anxious adults, while maintaining clinical accuracy.
3. One-Time Use Probes for Maximum Hygiene
The SW‑500 comes with single-use disposable probes, ensuring infection control and cross-patient safety. Clinicians can perform repeated tests throughout the day without the risk of contamination.
4. Portable and Lightweight Design
Weighing only a few hundred grams, this handheld rebound tonometer is designed for mobility and convenience. Its compact form allows eye care professionals to conduct tests in clinics, hospitals, mobile units, or even patients’ homes.
5. Rapid and Easy Operation
With automatic probe exit and quick measurement functions, the SW‑500 is easy to use, even for clinicians new to rebound tonometry. Its intuitive interface ensures that eye pressure can be measured quickly, consistently, and accurately, enhancing clinic workflow.
6. Dual Posture Measurement
The SW‑500 can measure IOP in both standing and lying positions, making it versatile for patients with physical limitations, bedridden individuals, or those undergoing routine examinations.
7. Wireless Data Printing
For clinics requiring instant documentation, the SW‑500 supports wireless thermal printing, enabling clinicians to print test results directly without cumbersome cables or delays. This functionality improves record-keeping and patient reporting efficiency.
Key Features of the SW‑500 Portable Rebound Tonometer
| Feature | Description |
| Model | SW‑500 |
| Device Type | Handheld Rebound Tonometer / Non-Contact Ophthalmic Equipment |
| Measurement Range | 3–70 mmHg |
| Accuracy | ±1.5 mmHg (3–25 mmHg), ±2.5 mmHg (25–70 mmHg) |
| Measurement Method | Rebound Tonometry |
| Probe | Single-use, disposable |
| Posture Support | Standing & Supine (lying) |
| Power Source | 2 × AA batteries (3V DC) |
| Wireless Printing | Optional thermal printer supported |
| Portability | Compact, handheld, lightweight |
| Ease of Use | Automatic probe exit, intuitive interface |
How the SW‑500 Rebound Tonometer Works
The SW‑500 uses a rebound probe that makes brief contact with the cornea. The device measures the speed and deceleration of the probe, which correlates with intraocular pressure. This rebound principle ensures accurate readings without anesthetic drops, reduces patient discomfort, and allows for quick repetition of tests.
This technology is recognized globally for precision, reliability, and safety, making the SW‑500 suitable for both clinical and field ophthalmic applications.
Clinical Applications
The SW‑500 is designed for a wide range of ophthalmic scenarios:
- Routine Eye Exams: Quick IOP measurement for general eye check-ups.
- Glaucoma Screening: Early detection and monitoring of patients at risk for glaucoma.
- Hospital and Clinic Use: Portable solution for high-volume eye care facilities.
- Pediatric Ophthalmology: Child-friendly, non-invasive measurements.
- Home Care & Outreach Programs: Handheld design allows remote vision screening and monitoring.
- Emergency Departments: Rapid assessment of eye pressure in trauma or acute cases.
Benefits for Clinicians
- Accuracy: Clinically validated IOP readings ensure reliable diagnosis.
- Ease of Use: Minimal training required due to automatic functions.
- Portability: Lightweight design enhances mobility.
- Hygiene: Disposable probes prevent cross-contamination.
- Patient Comfort: Non-contact measurement improves compliance.
- Flexibility: Supports both upright and supine patient positions.
- Data Management: Wireless printing for instant documentation.
Benefits for Patients
- Comfortable, painless IOP measurement without anesthesia
- Reduced stress for children or anxious individuals
- Quick measurement avoids prolonged eye strain
- Safe, hygienic procedure minimizing infection risk
- Consistent results for accurate diagnosis
Why Portable Rebound Tonometers Are Revolutionizing Eye Care
Portable rebound tonometers, like the SW‑500, are transforming ophthalmology by enabling accurate, rapid, and comfortable IOP measurement outside traditional clinic settings. Their handheld design, non-invasive operation, and single-use probe system make them ideal for modern healthcare workflows. Clinics and mobile units now have the ability to screen large populations efficiently while maintaining patient safety and comfort.
The SW‑500’s high-precision measurement capabilities allow ophthalmologists to make informed clinical decisions, detect glaucoma early, and monitor treatment efficacy, ultimately improving patient outcomes and vision preservation.
Frequently Asked Questions
What is the SW‑500 Portable Rebound Tonometer used for?
The SW‑500 measures intraocular pressure (IOP) in patients using non-contact rebound technology. It is suitable for routine exams, glaucoma screening, and clinical monitoring.
Does the SW‑500 require anesthesia?
No, the device’s non-invasive rebound technology eliminates the need for anesthetic drops, making the procedure comfortable and painless for patients.
Can the SW‑500 be used outside clinics?
Yes. Its handheld, portable design allows use in mobile eye camps, home care, and field-based screenings.
How does the SW‑500 prevent cross-infection?
The device uses single-use disposable probes for each patient, ensuring hygienic and safe operation.
Can it measure IOP in lying or seated patients?
Yes. The SW‑500 supports both standing and supine postures, making it versatile for diverse clinical needs.
Does it support data printing?
Yes. With optional wireless thermal printers, test results can be printed instantly, improving record keeping and reporting.
What is the accuracy of the SW‑500?
The SW‑500 provides ±1.5 mmHg error in the normal range and ±2.5 mmHg error for elevated IOP measurements up to 70 mmHg.
Who should use the SW‑500?
Optometrists, ophthalmologists, hospital clinics, mobile eye care units, and vision screening programs benefit from the SW‑500’s portable and accurate measurement capabilities.
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