Multimodal imaging findings in retinal deep capillary ischemia

Area of Science:

• Ophthalmology
• Retinal Imaging
• Vascular Diseases

Background:

• Retinal deep capillary ischemia (DCI) is a condition affecting the deeper retinal capillaries.
• Understanding its imaging characteristics is crucial for diagnosis and management.
• Distinguishing DCI from superficial capillary ischemia (SCI) is important for accurate patient care.

Observation:

• This study retrospectively reviewed 5 eyes of 4 patients with DCI presenting with paracentral scotomas.
• Multimodal imaging, including OCT, was used to analyze DCI findings.
• Findings were compared to SCI and correlated with microperimetry.

Findings:

• DCI imaging findings are subtler than SCI in both acute and chronic stages.
• Spectral-domain optical coherence tomography (SD-OCT) effectively differentiates DCI from SCI.
• Acute DCI shows middle retinal layer reflectivity; chronic DCI shows thinning and atrophy of these layers.

Implications:

• DCI is a nonspecific finding of retinal ischemia with characteristic middle retinal layer changes.
• OCT is the most sensitive and specific imaging modality for DCI detection.
• These findings aid in differentiating DCI from SCI, improving diagnostic accuracy.