Vitreous function and intervention of it with vitrectomy and other modalities

Area of Science:

• Ophthalmology
• Ocular Physiology

Background:

• The vitreous body is the largest intraocular structure, vital for eye development, refraction, and metabolic functions.
• Age, refractive errors, and systemic diseases can lead to vitreous metabolic abnormalities.
• Vitreous injections and vitrectomies have become more common with advancements in surgical techniques.

Purpose of the Study:

• To review the critical functions of the vitreous body.
• To highlight the potential risks associated with vitreous interventions, particularly vitrectomy.
• To advocate for a prudent approach to procedures affecting the vitreous.

Main Methods:

• This study is a review of existing literature on vitreous body function and interventions.
• Analysis of the impact of vitrectomy on intraocular oxygen tension.
• Comparison of vitrectomy with alternative procedures like scleral buckling.

Main Results:

• Vitrectomy can alter the normal oxygen tension gradient within the eye.
• Elevated oxygen tension post-vitrectomy may increase risks of nuclear cataract and open-angle glaucoma.
• Scleral buckling presents advantages over vitrectomy in specific clinical scenarios.

Conclusions:

• The vitreous body's normal oxygen tension is protective for ocular structures.
• Vitreous interventions require careful consideration due to potential adverse effects on the lens and trabecular meshwork.
• Prudent decision-making is essential when considering vitreous interventions.