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The retina in type 5 hyperlipoproteinemia.
American Journal of Ophthalmology
|July 1, 1976
Summary
Type 5 hyperlipoproteinemia can cause severe eye complications, including lipemia retinalis with hemorrhages and lipid deposits in retinal vessels. This condition can lead to vision loss through retinal vessel obstruction by lipid material.
Area of Science:
- Ophthalmology
- Medical Biochemistry
- Pathology
Background:
- Type 5 hyperlipoproteinemia is a rare genetic disorder characterized by extremely high levels of both triglycerides and cholesterol in the blood.
- Severe hyperlipoproteinemia can lead to various systemic complications, including those affecting the eyes.
Observation:
- Two patients with type 5 hyperlipoproteinemia were studied for ocular manifestations.
- One patient presented with lipemia retinalis, characterized by retinal hemorrhages and intraretinal lipid extravasations.
Findings:
- Postmortem examination of the first patient revealed hemorrhages in the inner retinal layers and significant lipid deposits in the outer plexiform layer.
- Lipid infiltration within the walls of retinal vessels was confirmed using light and electron microscopy.
- The second patient experienced visual loss attributed to progressive obstruction of retinal vessels by presumed lipid material, affecting only one eye.
Implications:
- This study highlights the severe ocular pathology associated with type 5 hyperlipoproteinemia.
- Understanding lipid deposition in retinal vessels is crucial for diagnosing and managing visual impairment in these patients.
- Early detection and intervention may be necessary to prevent irreversible vision loss.