Vitreomacular interface abnormalities in the Ghanaian African

Area of Science:

• Ophthalmology
• Medical Imaging
• Retinal Diseases

Background:

• Vitreomacular interface abnormalities (VMIA) are a spectrum of conditions affecting the interface between the vitreous humor and the macula.
• Age-related macular degeneration (AMD) is a leading cause of vision loss in older adults.
• Understanding VMIA prevalence and its relationship with AMD in diverse populations is crucial for comprehensive eye care.

Purpose of the Study:

• To describe vitreomacular interface abnormalities (VMIA) using spectral-domain optical coherence tomography (SD-OCT) in Ghanaian Africans.
• To investigate the correlation between VMIA and the grade of age-related macular degeneration (AMD).

Main Methods:

• A prospective, cross-sectional study involving adults aged 50 years and older recruited in the Ghana AMD Study.
• High-resolution SD-OCT scans (Macular Cube and line scans) were acquired for all participants.
• Vitreomacular interface (VMI) features were classified using the International Vitreomacular Traction Study Group system and correlated with AMD grade.

Main Results:

• The study included 624 participants (1248 eyes); 707 eyes had gradable scans for AMD and VMI.
• Posterior vitreous detachment (PVD) was absent in 71.3% of eyes and did not correlate with age.
• Vitreomacular interface abnormalities (VMIA) without traction were observed in 12.2% of eyes and showed no significant correlation with AMD grade.

Conclusions:

• This study presents the first assessment of VMIA in Ghanaian Africans.
• VMIA appear common in this population, though posterior vitreous detachment (PVD) might be less prevalent compared to Caucasian populations.
• No significant association was found between the grade of age-related macular degeneration (AMD) and the presence of VMIA.