Posts Tagged ‘glass eyes’

Artificial Eye Silicone Lubricants

Wednesday, May 18th, 2011

The lubricants listed below all work to increase the tear film that coats the surface of your prosthetic eye or scleral shell providing more comfort, easier blinking, and a more natural appearance. These lubricants are developed specifically for artificial eyes.

The higher the viscosity, the thicker and longer lasting the lubricant. While this would indicate the highest viscosity lubricant as the best choice, there are a few more factors to consider. The purpose of a lubricant with an ocular prosthesis is to decrease the friction between the eyelids and the prosthetic surface. The best way to decrease friction is to have a smooth prosthetic surface and a good tear film.

The higher viscosity silicone lubricants will boost the outer tear film layer, reducing the evaporation of tears. The soothing drops and lower viscosity lubricants will help boost the aqueous layer of the tear film. In cases where tear production is limited, it may be helpful to use both a lubricant and a soothing drop to replenish the tear film.

Artificial Eye Lubricants

Conditions that deplete tear film and indicate the use of a lubricant:

  • Air Conditioning,
  • Wind,
  • Dry heat,
  • Frigid cold,
  • Smoke,
  • Dust, and
  • Long duration of computer/television use.

Sil-Ophtho Heavy Silicone LubricantOcu-Glide Silicone LubricantSil-Ophtho Silicone LubricantArtificial Eye Lubricant

Early Artificial Eyes

Tuesday, June 15th, 2010

Here is a website with some great information about some early artificial eyes. It shows some great photos and schematics. Check it out!

Early Artificial EyesEarly Artificial Eyes

Myth #4: Artificial Eyes are Made of Glass

Monday, January 4th, 2010

Okay, so this one’s actually true. Artificial eyes have been and do continue to be made of glass in some parts of the world. In United States, blown glass has not been used to make artificial eyes in over 65 years. Please see our history section for more explanation of this. The current material for making artificial eyes is acrylic. Poly-methylmethacrylate or PMMA for short. Acrylic is an excellent material due to its very low reactivity with human tissue. The acrylic is also a very smooth material that is very strong. Acrylic is actually more transparent than glass, hence it’s widespread use in aquarium enclosures, rather than glass.

For our benefits, acrylic is a very good material to work with. It can be added to and subtracted from relatively easily and is very durable. Most ocular prosthetics last 5 years, but not because of the material. Usually the fit of the prosthesis has changed due to the constant changing of one’s own ocular tissue. The acrylic will usually do quite well in the socket until about 10 years when the pores will begin harboring bacteria.

Acrylic eyes do require maintenance to keep the surface smooth and free of bacteria. A professional polish every six months is recommended for most patients. This allows the ocularist an opportunity to inspect the fit, health of the socket and also remove protein and bacteria that form in the pores of the acrylic. If it has been more than a year since your last polish, please contact your ocularist.