A prosthetic eye is designed to restore the look of a natural eye, but many people wonder if it can move like a real eye. While custom-fitted prosthetic eyes do not restore vision, they can mimic natural eye movement to some extent. Several factors impact the amount of movement that a prosthetic eye may provide. These include the type of surgery performed, how the prosthetic fits, and the underlying structures in the eye socket.

In this article, we will examine prosthetic eye movement, including how they move, what impacts that mobility, and what you can expect when wearing one.

How Do Prosthetic Eyes Move?

A custom-fitted prosthetic eye does not move on its own. Instead, movement occurs when the eye muscles in the socket shift and transmit motion to the orbital implant, which then influences the prosthetic eye.

When an eye is removed due to injury or disease, if suitable, an orbital implant is placed in the eye socket. The implant acts as a foundation for a prosthetic eye. Sometimes it gets connected to surrounding extraocular muscles, which are responsible for normal eye movement. Because of this connection, a well-fitted prosthetic eye can move in sync with the natural eye to a limited degree.

However, because the prosthetic eye does not have internal muscles or nerves, its range of motion is typically more restricted than that of a natural eye.

Factors Affecting Prosthetic Eye Movement

There are several factors that determine the amount of eye movement that is possible from a prosthetic eye. Here is a closer look at what they are.

Type of Surgery Performed

The surgical method used to remove the eye impacts how much movement a prosthetic eye can have.

• Enucleation: This procedure removes the entire eye, including the eye muscles. The muscles are then attached to the orbital implant to restore some movement.
• Evisceration: In this procedure, the contents of the eye are removed, but the sclera (white part of the eye) remains. Because this method retains more of the original structure, it may allow for slightly better prosthetic movement.

Muscle Attachment to the Implant

Sometimes, the extraocular muscles are attached to the orbital implant during surgery. If the attachment is strong and positioned well, it improves the implant’s ability to move. This in turn helps the prosthetic eye shift in coordination with the natural eye. If the muscles are not well connected, more limited movement results.

Fit and Shape of the Prosthetic Eye

A properly fitted prosthetic eye is essential for achieving smooth and natural movement. A poorly fitted eye may move too much, or not enough. This makes the difference between the natural and prosthetic eyes more noticeable.

Condition of the Eye Socket

Eye socket health has an impact on how well the prosthetic eye moves. Scarring, loss of orbital volume, or muscle deterioration can all affect movement. Over time, changes in the socket may require adjustments to the prosthetic eye for better fit and function.

How Much Movement Can You Expect?

Most people with prosthetic eyes experience some movement, but it is typically less than that of a natural eye. Movement is often more noticeable with slow eye motions, such as when looking around casually. Quicker eye movements may result in a lag.

Factors such as implant type, muscle attachment, and socket health all contribute to the amount of possible movement. Some individuals have found that their prosthetic eye moves almost seamlessly with their natural eye, whereas others have experienced just slight motion.

A well-made prosthetic eye will sit securely in the socket and move naturally within its limitations. James H. Morphett’s expertise ensures that patients receive a prosthesis that fits well, moves as naturally as possible, and provides long-term comfort.

Can Prosthetic Eye Movement Be Improved?

Although prosthetic eyes will never have the range of movement that natural eyes do, certain factors can enhance their movement. They include:

• Proper Fitting: A custom-made prosthetic eye ensures the best possible movement and comfort.
• Regular Check-Ups: Routine visits to an ocularist help maintain fit and function. Adjustments or polishing may be necessary over time.

For those with limited movement, an experienced ocularist like James H. Morphett can assess whether adjustments to the prosthesis can improve its function.

Conclusion

Prosthetic eyes cannot move independently. However, they can achieve some degree of movement in conjunction with an orbital implant. There are several factors that impact the range of motion. They include surgical techniques, the type of implant, muscle function, and how the prosthetic eye fits. While prosthetic eye movement may not be as fluid as a natural eye, a well-fitted custom prosthetic eye ensures the best possible results.

For expert fitting, adjustments, and long-term prosthetic eye care, James H. Morphett provides personalised solutions to help patients feel comfortable and confident.

👉 If you need a prosthetic eye or want to improve its fit and movement, contact us today to schedule a consultation.