[Corneal Ascher ring. A ring-shaped stromal corneal opacity].

Area of Science:

• Ophthalmology
• Corneal Diseases
• Histopathology

Background:

• Corneal opacities can arise from various conditions, impacting visual acuity.
• Arcus lipoides and arcus senilis are common forms of corneal lipid deposition.
• Understanding rare corneal anomalies is crucial for differential diagnosis.

Observation:

• Two patients presented with an unusual bilateral, ring-shaped corneal opacity.
• Biomicroscopy revealed minute greyish dots in the outer corneal stroma.
• These dots formed a circular band resembling arcus lipoides, distinct from typical arcus senilis.

Findings:

• The observed corneal anomaly is characterized by a unique ring-shaped pattern.
• Histological examination showed deposits within the outer stromal layers.
• This condition is distinct from other known corneal opacities, with limited prior reports.

Implications:

• The proposed name 'Ascher-Ringe' aids in classifying this rare corneal condition.
• Further research is needed to elucidate the etiology of Ascher-Ringe.
• Accurate identification and naming can improve diagnostic accuracy and patient management.