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General| Type | Hand-held Applanation Tonometer |
|---|---|
| Measurement Range | 0 to 80 mmHg |
| Accuracy | ±0.5 mmHg |
| Prism Diameter | 3.06 mm |
| Usage | To measure intraocular pressure (IOP) |
| Measurement Method | Goldmann Applanation Tonometry |
| Prism | Reusable |
| Sterilization | Autoclavable prism |
| Power Supply | None (manual operation) |
Details the construction, components, and operational principles of the Perkins Mk3 tonometer.
Specifies the medical conditions and scenarios where the tonometer is indicated for use.
Explains the tonometer's role in eye examinations, glaucoma screening, and patient ocular health.
Provides a brief explanation of the Goldmann method and applanation tonometry principles.
Identifies the main external parts of the Perkins Mk3 tonometer shown in Figure 1.
Identifies controls, indicators, and ports of the Perkins Mk3 tonometer shown in Figure 2.
Lists critical safety precautions for operating the tonometer and handling potential hazards.
Covers inspection, cleaning, and replacement guidelines for measuring prisms.
Specifies environmental conditions and procedures for safe transport and storage.
Provides general notes on usage, user responsibilities, and potential risks.
Outlines the device's compliance with medical device directives and relevant standards.
Highlights key warnings and advice to be strictly observed for safety.
Lists standards related to safety, electrical requirements, and electromagnetic compatibility.
Provides guidance on the proper disposal of waste electrical and electronic equipment.
Specifies the acceptable temperature, humidity, and pressure for device operation.
Discusses electromagnetic compatibility and necessary precautions for device use.
Explains the purpose and meaning of labels affixed to the tonometer.
Details the specific safety symbols used on the tonometer and their interpretations.
Describes the physical interaction between the prism and the cornea during measurement.
Explains SI units for pressure and provides a comparison scale for readings.
Discusses how corneal thickness affects IOP readings and the need for informed interpretation.
Instructions for safely removing the tonometer from its protective carrying case.
Guidance on cleaning and preparing the doubling prism before use.
Step-by-step instructions for correctly fitting the prism into the prism holder.
Information on the use of sterile disposable prisms to prevent cross-infection.
Details the steps for preparing the patient's eye, including anaesthesia and fluorescein application.
Guidance on how to instruct patients to ensure accurate and comfortable measurements.
Provides a detailed procedure for manual, non-immersion cleaning of the tonometer.
Explains how corneal astigmatism affects measurement accuracy and how to adjust.
Discusses the differences and necessary adjustments when using the tonometer on animal eyes.
Highlights critical precautions and handling advice to ensure accuracy and safety.
Describes common measurement errors related to fluorescein rings and their resolutions.
Illustrates errors in horizontal alignment and provides correction methods.
Illustrates errors in vertical alignment and provides correction methods.
Shows how pressure settings affect the fluorescein rings and how to achieve accurate readings.
Lists all items provided within the tonometer's carrying case.
Step-by-step guide to check and set the zero position of the tonometer.
Procedure for verifying the tonometer's accuracy at the 2-gram calibration point.
Procedure for verifying the tonometer's accuracy at the 5-gram calibration point.
Instructions for safely storing the tonometer and its components when not in use.
Explains the color codes of the battery indicator light and their significance.
Information on the battery pack's characteristics and maintenance requirements.
Describes the different LED states on the charger unit and what they indicate.
Provides the technical specifications for the battery charger unit.
Lists the operational measuring range and the device's measurement uncertainty.
Specifies the total net weight of the packed tonometer.
A list of cited scientific papers and articles relevant to the tonometer.
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