Navigation Links
New contact lens materials

According to researchers at the Southeastern Medical College at Dallas report that contact lenses, both rigid and soft, made from new hyper-oxygen transmissible materials are expected to reduce the possibility of bacterial infection better than contact lenses which are available now. Based in part on these findings, the Food and Drug Administration (FDA) recently approved hyper-oxygen transmissible contact lenses for 30-day continuous wear.//

The results of the Southeastern study are published in American Academy of Ophthalmology. Dr. H. Dwight Cavanag, senior author of the study and vice chairman of ophthalmology and associate dean for clinical services at Southeastern, said study results provide a firm biological foundation for increased prospective safety of the new silicone hydrogel lens materials.

According to Cavanag and his study, the significance of out study is that for the first time we have a scientific-based rationale that has passed peer review at high levels that exactly predicts our current epidemiological risk pattern and strongly suggests that these new lenses will be the breakthrough in reducing risk for infection.

Cavanag said conventional contact lenses disturb the surface of the cornea, thereby allowing pathogenic bacteria, such as Pseudomonas aeruginosa, to bind to the corneal surface cells and potentially initiate infection.The most significant and devastating clinical complications among contact-lens wearers have been corneal ulcerationand infection, which can lead to permanent visual loss.

He said that this is the first randomised, prospective, masked clinical study with contact lenses that demonstrates significant difference in bacterial binding to the cornea as a function of the oxygen transmission of the lenses themselves. This means that there are really small amounts of increased bacterial binding seen with extended-wear, even up to 30 nights, with the novel contact-lens materials that transmit high amounts of oxygen to the eye as compared to presently available conventional materials.

Cavanagh said the study established three important findings. Initially, the hyper-oxygen transmissible soft-lenses produced significantly less bacterial binding than conventional lens with no significant difference between six-night and 30-night wear. Second, researchers noted for the first time a remarkable adaptive recovery after six months with all soft lenses, with a decrease in bacterial binding to the corneal surface. Lastly, 30-night wear produced no significant increases in bacteria binding after one year.

An unexpected finding of the study was that rigid contact lenses appear better for the eye than soft because they promote tear exchange, which washes out debris and allows more oxygen to reach the eye. For the past 20 years, ophthalmologists have warned the public against wearing contact lenses overnight because it could make them more susceptible to eye infections.


'"/>




Related medicine news :

1. Reduce eye infection through new-age contact lenses
2. Newborns Know how to make eye contact
3. Headway in identification of allergens of contact dermatitis
4. NSET recognizes needs related to engineered nanoscale materials
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... ... October 13, 2017 , ... Southern ... and Jennifer Huggins, PharmD ’17, along with clinical associate professor Janice Frueh, ... cardiovascular diseases during the 15th Annual Women’s Health Conference. The SIU School ...
(Date:10/13/2017)... ... October 13, 2017 , ... Many families have long-term insurance that covers ... companies have a waiver for care if the client has a cognitive impairment diagnosis. ... pays for care, is often waived, so the benefits from their insurance start immediately,” ...
(Date:10/13/2017)... , ... October 13, 2017 , ... Global Healthcare Management’s ... Alexandria Park in Milford, NJ. This free event, sponsored by Global Healthcare Management’s ... The fun run is geared towards children of all ages; it is a ...
(Date:10/13/2017)... VA (PRWEB) , ... October 13, 2017 , ... ... of DevOps and Agile Software Development, has been awarded a contract by the ... Blanket Purchase Agreement (BPA) aims to accelerate the enterprise use of Agile methodologies ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... advisory services for healthcare compliance program management, will showcase a range of technology ... Association for Assisted Living (NCAL) Convention and Expo to be held October 14–18, ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... FRISCO, Texas , Oct. 11, 2017 /PRNewswire/ ... healthcare services, has amplified its effort during National ... patients about hereditary cancer risks. ... Journal of Clinical Oncology calculated that more than ... to have inherited mutations in BRCA1 or BRCA2 and ...
(Date:10/5/2017)... 5, 2017  In response to the nationwide ... Maxillofacial Surgeons (AAOMS) released prescribing recommendations that urge ... used as a first-line therapy to manage a ... Recognizing the value and importance ... "Opioid Prescribing: Acute and Postoperative Pain Management" stresses ...
(Date:10/2/2017)... Lilly and Company (NYSE: LLY ) will ... 2017 on Tuesday, October 24, 2017. Lilly will also ... investment community and media to further detail the company,s ... at 9 a.m. Eastern time. Investors, media and the ... conference call through a link that will be posted ...
Breaking Medicine Technology: