Overview of Head Positioning after retinal procedures.
Why positioning is important after surgery with gas or oil in the eye.
Discussion of different acceptable methods of positioning after surgery.
Discussion of when positioning usually starts and stops after surgery.
Overview of eye anatomy with videos showing the parts of the eye and how the eye works.
Overview of positioning rationale, strategy, and recommendations for patients undergoing macular hole surgery.
Positioning, rationale, and strategy for patients undergoing Pneumatic Retinopexy (office procedure)for Retinal Detachment.
Positioning, rationale, and strategy for patients undergoing Vitrectomy (operating room procedure) for Retinal Detachment.
Positioning, rationale, and recommendations for patients undergoing pneumatic displacement of macular hemorrhage in the office (uncommon procedure).
Overview of different gasses used in the eye reviewing their size and duration of action.
Overview of properties of silicone oil used in the eye.

What does the Gas or Oil Accomplish?

Gas and oil have a few properties that work to gently affect the retina. They have buoyancy - which means they float to the top of the eye when it is filled with a salt solution. They also exert a force upward at the top of the bubble. They also have surface tension, which is a force at the interface of the gas/oil bubble and the surrounding tissue. That surface tension exerts a force that can seal retinal defects--like macular holes and retinal breaks. The surface tension acts to keep fluid from inside the eye from going through a hole in the retina. This allows the natural pump under the retina to pump fluid out from under the retina and reattach the retina or close a macula hole.

What Natural Pump?

The retina is held in place by a suction force exerted by the retinal pigment epithelium which is a single layer of tissue under the retina that actively pumps fluid out from the subretinal space. The retinal pigment epithelium keeps the retina attached, but the pump can be overwhelmed by fluid flowing through a retinal defect, like a retinal tear or break. Once a retinal tear or break is sealed by a gas or oil bubble, the pump can remove subretinal fluid that has accumulated and reattach a detached retina.