UCanSee Snellen Eye Chart Visual Acuity Chart 22x11 inches

Description: The Snellen chart is a standard tool for checking how well you can see. Each eye test letter's size is carefully designed to follow the one-minute visual angle principle, ensuring precise measurements for accurate vision testing. FEATURES PVC Material: Constructed from strengthened PVC material, it boasts high durability and tear resistance. The surface of the vision chart stays remarkably clear, devoid of any glare or reflection. Waterproof Capabilities: The vision chart is built to be waterproof, making it more durable and reliable in different surroundings. Secure Affixing with Double-Sided Tape: To keep it steady and prevent curling, use double-sided tape to firmly attach all four corners of the chart when mounting it. Simple Setup, Effortless Testing: Just use double-sided tape to attach the eye chart at all four corners, and then use a pointer and an eye patch to measure vision for each eye separately. INSTRUCTIONS Picking the Location: Choose a quiet, well-lit spot with no obstructions in front of the eye chart. Confirm the Distance: The standard testing distance is 20 feet (about 6 meters). Attach the Chart: Securely stick the chart to the wall with double-sided tape, making sure the 20/20 line is at eye level. Running the Test: The person being tested should stand 20 feet away from the chart. They should cover one eye, then the other, starting from the top and reading down the chart, noting the clearest line they can see. RESULTS Under normal circumstances, applies to individuals who are 5 years of age and older, if you can read the letters on every line from 20/20 and upwards, your prescription is 0D, indicating good vision. However, if you can only read the letters from 20/40 and upwards, your prescription may be -1.00D, suggesting a need for correction. Please note that this may not represent precise results. If you require a prescription for eyeglasses, please visit a professional optometrist. The inclusion of red and green color bars facilitates the assessment of red-green color blindness. Additionally, in the case of children under 5 years old, as their eyes are still in the process of development, 3-4-year-old children may typically only be able to read the 20/40 or 20/50 lines. PACKING LIST Item Number Snellen Chart 1 Eye Occluder 1 Pointer 1 Double-Sided Tape 4 SHIPPINGAll orders will ship within 5 business days of payment. Delivery may be delayed due to carrier delays and/or other issues.All of our customers are very important to us, if you have a delivery or quality problem, please do not open a case but contact us promptly via eBay message, we will try our best to resolve it with you. RETURN POLICYReturns are accepted within 30 days of the buyer receiving the item. Buyer is responsible for return shipping if it's not our fault. We will issue a refund within 2 business days of receiving the returned item.Returned items must be in their original condition, custom items cannot be returned.

Price: 9.99 USD

Location: Cleveland, Ohio

End Time: 2024-03-08T07:03:28.000Z

Shipping Cost: 0 USD