Crystal TEAR Report Makes Dry Eye Diagnosis Crystal Clear

Helps determine the cause of dry eye disease quickly. We can carry out a comprehensive analysis using the measurement results as a basis for your diagnosis. All results are summarized in a patient-friendly, neatly arranged printout.  The Crystal TEAR Report allows us to draw up an effective treatment, according to the individual causes of dry eye, in the shortest time. The result: a comprehensive dry eye analysis.

Meibo-Scan Meibography of the upper and lower eyelid

The Keratograph® 5M easily and efficiently integrates difficult examinations such as meibography. The dysfunction of meibomian glands is the most frequent cause of dry eye. Morphological changes in the gland tissue are made visible using the Meibo-Scan.

R-Scan Automatic classification of conjunctival redness

Previously, conjunctival redness evaluation has been carried out subjectively and the results have varied according to the examiner‘s qualification. The Keratograph® 5M can classify the bulbar and limbal redness using the R-Scan. The R-Scan detects vessels in the conjunctiva and evaluates the degree of redness. This eliminates the need for time-consuming comparisons and provides greater reliability during evaluation.

TF-Scan Evaluation of non-invasive tear film break-up time

The non-invasive tear film break-up time (NIKBUT) measures tear film stability. The NIKBUT is automatically measured within seconds, without fluorescein application.  Human eyes are not able to perceive infrared illumination. Glare and reflex tear secretion are therefore avoided during the examination. The TF-Scan visualizes the results in an easy and understandable way.

Quantity and Quality of the Tear Film

The high-resolution color camera makes the smallest structures visible. This enables us to measure the tear meniscus height and evaluate the lipid layer, as well as analyze the tear film dynamics. Not only do we gain very important findings about tear film break-up time, but also those about the quantity and quality of the tear film.

Tear Meniscus Height

Never has a precise measurement been so easy. We can evaluate the course of the tear meniscus along the eyelid by means of the infrared illumination and precisely measure the tear meniscus height with the built-in ruler.

Evaluation of Lipid Layer

Hyper-evaporative dry eye is easily overlooked when using conventional tests. Thus, evaluating the lipid layer of the tear film is even more important. With the Keratograph® 5M we can record videos of interference patterns of the lipid layer. Distribution characteristics, morphology and thickness of the lipid film can be continuously evaluated.

Tear Film Dynamics

The tear film contains numerous particles. These can be made visible using a specific light source. These particles are distributed in the tear fluid from bottom to top during each blink. The velocity of these particles provides information on tear film viscosity. We can quickly and easily evaluate the quantity and movement of these tear film particles using the TF-Scan.

Topography Quick, precise and clear

Aside from topography and automatic keratoconus detection, the Keratograph® 5M provides a large contact lens data base and many analyses for daily practice. The built-in keratometer and automatic measurement ensure the utmost accuracy and reproducibility. After completing the measurement, the overview display provides a detailed outline.

The Keratograph® software includes a reliable screening package for corneal disease detection, lens fitting and refractive surgery. The complex corneal surface structure is measured by means of mathematical analysis, which serves as the basis for accurate detection of irregularities like keratoconus. In addition, optical properties of the front surface of the cornea are exactly characterized.

Topographic Keratoconus Screening

Keratoconus classification is based on numerous parameters. The Topographic Keratoconus Screening display merges these parameters. The colored label illustrates abnormal values. Temporal changes of the parameters are shown side by side in a table, to facilitate follow-ups.