Endothelial mosaic in Fuchs' dystrophy. A qualitative evaluation with the specular microscope

Area of Science:

• Ophthalmology and Vision Science
• Cell Biology

Background:

• Fuchs' endothelial dystrophy is a progressive corneal disease.
• Cornea guttata are characteristic morphological changes in this condition.

Purpose of the Study:

• To characterize the progressive morphological changes of cornea guttata in Fuchs' endothelial dystrophy.
• To identify distinct stages of excrescence development using in vivo specular microscopy.

Main Methods:

• Clinical specular photomicroscopy was employed as the in vivo technique.
• Observation and categorization of morphological changes in cornea guttata.

Main Results:

• Five specific stages of cornea guttata development were discerned.
• Multiple stages can coexist within a single cornea, though one stage often predominates.
• These stages can manifest even in corneas without clinical edema.
• Two distinct types of cornea guttata were identified based on posterior surface regularity: smooth/regular and irregular.

Conclusions:

• Specular photomicroscopy is effective for staging cornea guttata in Fuchs' endothelial dystrophy.
• The identified stages provide a framework for understanding disease progression.
• The presence of distinct guttata types suggests different underlying morphological processes.