Choroidal thickness in relation to hypercholesterolemia on enhanced depth imaging optical coherence tomography

Area of Science:

• Ophthalmology
• Cardiovascular Health
• Medical Imaging

Background:

• Choroidal thickness is a key indicator of ocular health.
• Hypercholesterolemia, a condition of high cholesterol levels, may impact vascular structures within the eye.

Purpose of the Study:

• To investigate the relationship between hypercholesterolemia and choroidal thickness in healthy volunteers.
• To determine if elevated cholesterol levels are associated with changes in choroidal dimensions.

Main Methods:

• A cross-sectional observational study was conducted on healthy volunteers.
• Enhanced depth imaging optical coherence tomography (EDI-OCT) was used to measure choroidal and retinal thicknesses.
• Subjects were categorized into groups with and without hypercholesterolemia, excluding those with diabetes or hypertension.

Main Results:

• Subjects with hypercholesterolemia exhibited significantly greater mean subfoveal choroidal thickness compared to controls (306 ± 111 μm vs. 258 ± 97 μm, P=0.041).
• This significant difference in choroidal thickness was also observed at nasal and superior locations 1 mm from the fovea.
• Mean subfoveal choroidal thickness showed a negative correlation with age (r = -0.326; P = 0.001).

Conclusions:

• Hypercholesterolemia is associated with increased subfoveal choroidal thickness in healthy individuals.
• These findings suggest that cholesterol levels should be considered when evaluating choroidal thickness measurements.
• Further research may explore the clinical implications of these vascular changes in the context of ocular health.