The fully retractable Aesthesiometer (also known as a Cochet-Bonnet Aesthesiometer or Esthesiometer) is a precision diagnostic instrument used to measure corneal sensitivity through mechanical stimulation. Renowned for its accuracy and ease of use, this tool plays a vital role in assessing corneal nerve function in patients with ocular surface disorders, neuropathies, or after surgical interventions.

Key Features:

• Adjustable Nylon Filament: Utilizes a high-quality nylon filament. The filament’s length is adjustable from 5 mm to 60 mm, allowing for precise control of the applied pressure. A shorter filament length corresponds to a higher pressure stimulus.

• Quantitative Sensory Measurement: Provides a quantitative, reproducible method for determining corneal touch threshold. Ideal for ophthalmologists, optometrists, and researchers in both clinical and academic settings.

• Reliable and Easy to Use: Simple to operate, this tool delivers immediate tactile feedback based on patient response. The telescopic design ensures easy adjustment of filament length with graduated markings for consistency.

• Durable Construction: Constructed with high-quality components and a replaceable filament system, ensuring long-lasting use and easy maintenance. Replacement filaments are available separately (Good-Lite SKU567000).

• Essential in Clinical Practice: Commonly used in the evaluation of corneal hypoesthesia, diabetic neuropathy, herpetic keratitis, post-refractive surgery monitoring, and contact lens-related corneal changes.

Maintenance & Replacement:

Over time, the filament may degrade or absorb moisture, affecting its mechanical properties. Regular inspection and replacement of the filament are essential for maintaining test consistency and patient safety. Environmental factors such as humidity can alter stiffness, so it’s recommended to store and handle the unit with care.

Good-Lite offers replacement filament packs to ensure continued accuracy and compliance with clinical standards.

Click here for the 605100 Guide.