Risk factors for posterior vitreous detachment: a case-control study

Area of Science:

• Ophthalmology
• Nutritional Science
• Endocrinology

Background:

• Posterior vitreous detachment (PVD) is a common cause of visual disturbance.
• Identifying risk factors for PVD is crucial for understanding its pathogenesis and potential prevention strategies.

Purpose of the Study:

• To investigate potential risk factors associated with the development of posterior vitreous detachment (PVD).
• To explore demographic, medical, ocular, and lifestyle factors, including nutrient intake, in relation to PVD.
• To examine gender-specific risk factors for PVD.

Main Methods:

• Retrospective case-control study involving 138 PVD cases and 114 age-matched controls.
• Data collection included chart review, questionnaires, clinical examination, and a food frequency questionnaire for nutrient intake assessment.
• Univariate and multivariate regression analyses were used to identify significant associations with PVD, with subgroup analyses for gender.

Main Results:

• Female gender, myopic refraction, and higher vitamin B6 intake were significantly associated with PVD in the overall cohort.
• In women, menopause, myopic refraction, and higher vitamin B6 intake were strongly linked to PVD.
• Vitamin B6 showed a significant association with PVD in premenopausal women, but not in postmenopausal women.

Conclusions:

• Menopause emerges as a novel risk factor for PVD, possibly related to hormonal shifts and their effect on vitreous structure.
• The association between vitamin B6 and PVD in premenopausal women may involve an anti-estrogen effect, warranting further investigation.
• Prospective studies are recommended to confirm these findings and elucidate the underlying mechanisms linking hormonal status, nutrition, and PVD development.