Automatic system for corneal ulcer diagnostic: II

Liliane Ventura; Caio Chiaradia; Sidney Julio Faria de Sousa

doi:10.1117/12.309439

1 June 1998 Automatic system for corneal ulcer diagnostic: II

Liliane Ventura, Caio Chiaradia, Sidney Julio Faria de Sousa

Proceedings Volume 3246, Ophthalmic Technologies VIII; (1998) https://doi.org/10.1117/12.309439
Event: BiOS '98 International Biomedical Optics Symposium, 1998, San Jose, CA, United States

Abstract

Corneal Ulcer is a deepithelization of the cornea and it is a very common disease in agricultural countries. The clinician most used parameter in order to identify a favorable ulcer evolution is the regress of the affected area. However, this kind of evaluation is subjective, once just the horizontal and vertical axes are measured based on a graduated scale and the affected area is estimated. Also, the registration of the disease is made by photographs. In order to overcome the subjectiveness and to register the images in a more accessible way (hard disks, floppy disks, etc.), we have developed an automatic system in order to evaluate the affected area (the ulcer). An optical system is implemented in a Slit Lamp (SL) and connected to a CCD detector. The image is displayed in PC monitor by a commercial frame grabber and a dedicated software for determining the area of the ulcer (precision of 20 mm) has been developed.

Citation Download Citation

Liliane Ventura, Caio Chiaradia, and Sidney Julio Faria de Sousa "Automatic system for corneal ulcer diagnostic: II", Proc. SPIE 3246, Ophthalmic Technologies VIII, (1 June 1998); https://doi.org/10.1117/12.309439

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