PROSE Treatment

Dry Eye Syndrome

 "Since getting PROSE treatment, I have been able to go out in the sunshine and I do not have the feeling of sand in my eyes anymore. They have given me my life back." 
— Dry eye patient

77% of patients with dry eye reported significant success with BostonSight® PROSE treatment.

Contact us today to find out if we can help you!

Download our guide here:
Dry Eye: BostonSight PROSE Treatment Can Help

About Dry Eye

Dry eye is a catch-all term referring to ocular surface disease. In ocular surface disease there are abnormalities of the tear film.  The tear film has three component layers. These layers coat the surface of the eyes, providing clear vision and protecting the delicate and sensitive eye tissues. Other names for dry eye include dry eye syndrome, dry eye disease, and keratoconjunctivitis sicca. Dry eye does not necessarily mean your eyes are "dry", but that there are signs and/or symptoms of dryness. Many people who suffer from “dry eye” have chronically watery eyes because of an imbalance in the systems that maintain the ocular surface. Dry eye means there is something wrong with your ocular surface.

How BostonSight PROSE Treatment Can Help

Thousands of patients with dry eye syndrome - just like you - have had their vision restored and quality of life transformed with our innovative treatment. BostonSight PROSE (prosthetic replacement of the ocular surface ecosystem) treatment uses FDA-approved custom made prosthetic devices to replace or support impaired ocular surface system functions that protect and enable vision.

Device schematic - white

The prosthetic devices created during PROSE are transparent domes, about the size of a nickel. They look similar to an oversized hard contact lens and resemble a margarita glass without the stem in shape. Prosthetic devices fit under the eyelids, vaulting the damaged cornea and resting on the sclera (the relatively insensitive white tissue of the eye). Worn during waking hours, patients are trained in daily application, removal and cleaning as part of the treatment process.

PROSE devices are made out of a highly gas-permeable hard plastic that allows oxygen to reach the cornea. They are designed to create a space between the prosthetic device and the eye that is filled with sterile saline. The liquid remains in the reservoir, providing constant lubrication by bathing the eye in a pool of artificial tears.

Benefits of BostonSight PROSE

  • Reduces dry eye symptoms of pain and light sensitivity and supports healing by restoring a healthy ocular surface environment
  • Improves blurry vision by masking irregularities on the cornea’s surface and transmitting a sharp image to the back of the eye
  • Prevents further damage by protecting and shielding the cornea against the environment and eyelids

Note: The prosthetic devices used in PROSE were formerly known as Boston Ocular Surface Prosthesis (BOS-P), Boston Scleral Lens devices and Boston Scleral Lens Prosthetic Devices. 

To learn more about dry eye in general, please visit The Dry Eye Zone website at

Updated 9/15

PROSE device being filled

Dry Eye Symptoms and Treatment Success

A 2010 BostonSight survey of 511 people with severe dry eye found that:

  • 84% had moderate or severe eye pain
  • 81% had difficulty reading regular print newspapers, magazines or websites
  • 77% had light sensitivity
  • 75% had difficulty driving at night
  • 74% had difficulty with work or hobbies that require seeing up close

When asked about their success with various treatments:

  • 4% had significant success with oral antibiotics, fish or flaxseed oils
  • 4% with punctal plugs
  • 5% with topical immunosuppression (Restasis/Cyclosporine)
  • 8% with topical steroids
  • 13% with artificial tears, lubricant gels or ointments

77% had significant success with BostonSight® PROSE treatment*

* Survey questions refer to success with Boston Ocular Surface Prosthesis (BOS-P) and Boston Scleral Lenses used exculsively in BostonSight PROSE treatment.

Read more patient survey results in our Report Back to the Community.

Breaking the Chains

When Melissa began experiencing dry eye symptoms, a common complication of RA, her determination was sorely tested. Accustomed to working the night shift as a nurse, she could barely tolerate keeping her eyes open: "I was in such horrible pain it was sending me to bed so early."….read more