7 Inch Portable Eye Exams Machine Auto Refractor,Eye Exams Machine, 98cm Measuring Distance, 0-180° Axis Number,for Teenagers to Check Their Vision

Are you trouble about your child's vision changes but struggling to accurately identify them? This smart vision screener provides a professional-grade initial screening in just 5 seconds! Accurately detect eye problems. Clear, intuitive digital results make it easy to track trends. Compact and portable, suitable for the whole family, it's a thoughtful assistant for your family's health management. Protect your child's bright future!Specifications:Data transmission:WIFI IEEE802.11b/g/n/,2.4GHzCharging port: USB 3.0Power supply (input): 100-240 V, 50/60 Hz, 35 VADisplay: 7-inch 1080p LCD touchscreenAxis: 0-180°Measuring distance: 98 cm (±3 cm)Full battery life: 5 hoursMeasurement time: <15 secondsSpherical power: -8.00 D to +8.00 D (±0.25 D).Cylinder power: -3.5 D to +3.50 D (±0.25 D).Note:1. Ensure the distance between the device and the object being measured is 1m (±15mm).2. Keep the environment relatively dark so the subject's pupils can dilate.3. Keep the lens level with the object being measured.4. Keep the device stable; do not lift the tripod when moving the device.5. During the recording process, the subject should keep their head steady and avoid blinking.6. Take clear photos to obtain relatively accurate data.Packaging Contents:DeviceInstruction ManualStandChargerIf you are interested in our products or have any questions, please feel to contact us. We will respond within 24 hours.

• 【7-INCH LCD TOUCHSCREEN】The 7-inch 1080p LCD touchscreen display provides a clear and intuitive interface, making it easy to navigate and review results. The portable autorefractor, equipped with a handle and tripod, is easy to use and move.
• 【SAFE】No glare from bright lights, using harmless, invisible infrared light to protect your eyes. Furthermore, the ophthalmic vision screener completes a full eye scan in just seconds and can be performed from a distance of 1 meter (3.3 feet). Health checks and binocular refractive status data collection are also available.
• 【VERSATILE REFRACTIVE RANGE】The vision screener measures spherical power from -8.00D to +8.00D and cylindrical power from -3.5D to +3.50D, with an accuracy of ±0.26D.
• 【EASY TO USE】The automated screening method completes a full eye scan with the touch of a button. Complete a complete eye exam and collect binocular refractive data, including spherical power, cylindrical power, and pupillary distance.
• 【APPLICATION】This touchscreen autorefractor is used to screen for eye problems. Suitable for people aged 3 and over, its 97% screening success rate helps doctors determine follow-up treatment plans and more accurately assess patients' health.