Science News

... from universities, journals, and other research organizations

Contact Lens Capable of Correcting Hyperopia Without Surgery

Apr. 22, 2010 — Jaume Pauné, a graduate of the Master's Degree in Optometry and Vision Sciences at the UPC-Barcelona Tech's College of Optics and Optometry, has designed an innovative new contact lens that will improve the vision quality of thousands of people without surgery.


Share This:

The Spanish Association of Opticians and Optometrists has granted its National Award to Mr. Pauné for his innovative work in this field.

Pauné's design is the first contact lens capable of correcting hyperopia without refractive surgery by means of corneal reshaping, also known as orthokeratology or ortho-K. This technique uses rigid gas-permeable contact lenses to reshape the cornea to correct vision defects such as myopia, stigmatism and mild to moderate hyperopia without surgery. Each patient is fitted with unique lenses that are custom-made for his or her eyes.

Perfect vision, without surgery

For the sake of comfort, the patient wears the contact lenses only at night. The lens works by applying pressure to the tear film that coats the outside of the cornea. This pressure changes the shape of the cornea by about 20 µm, or about half the width of a strand of human hair. In the morning, the patient removes the lenses and is able to see perfectly. The results are the same as with refractive surgery, but are temporary. These new contact lenses, developed as part of a master's thesis by Jaume Pauné, are being sold at an initial price of €1000, which includes the cost of designing unique lenses to fit each cornea, and €400 for annual replacement lenses.

The lenses are being marketed in collaboration with Atenas Vision, the distributor for Spain and Portugal, and the French laboratory Precilens, which manufactures the lenses under the name PauneLens.

Development process

Jaume Pauné developed this innovative new contact lens using existing ortho-K technology. In 2005, at an international contact lens conference in the United States, Pauné saw the presentation of the first ortho-K lens to be developed for hyperopia, which ultimately was never introduced on the market. His interest piqued, Pauné began experimenting with the idea of manufacturing such a lens. In 2008, he enrolled in the UPC-Barcelona Tech's Master's Degree in Optometry and Vision Sciences, which required him to complete a master's thesis.

In the course of his research for the thesis, he reviewed the literature and decided to design and manufacture a new model of contact lens, which he tested on ten people. One of these patients, an individual determined to find a solution to ongoing vision problems, tried six different models of the lens, each for a period of one week. With this patient, Pauné found the key to developing the first effective contact lens for hyperopia. In the process, he discovered that his technical and scientific principles were different from those of contact lens models used for myopia.

Share this story on Facebook, Twitter, and Google:

Other social bookmarking and sharing tools:

|

Story Source:

The above story is reprinted from materials provided by Universitat Politècnica de Catalunya, via AlphaGalileo.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


APA

MLA

Note: If no author is given, the source is cited instead.

Search ScienceDaily

Number of stories in archives: 137,088

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily's archives for related news topics,
the latest news stories, reference articles, science videos, images, and books.

Recommend ScienceDaily on Facebook, Twitter, and Google:

Other social bookmarking and sharing services:

|

 
  more breaking science news

Social Networks


Recommend ScienceDaily on Facebook, Twitter, and Google +1:

Other social bookmarking and sharing tools:

|

Breaking News

... from NewsDaily.com

In Other News ...

Science Video News


Detecting Alzheimer's Early

Building upon a recent discovery that the same Alzheimer's disease process that goes on in the brain also occurs in the eye, researchers have. ...  > full story

Strange Science News

 

Free Subscriptions

... from ScienceDaily

Get the latest science news with our free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Feedback

... we want to hear from you!

Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?

Post this page to your favorite social bookmarking site:
Include this item in your blog or web site:
Cite this article in your essay, paper, or report:
Email this page's link to a friend or colleague: