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:6/27/2016)... (PRWEB) , ... June 27, ... ... in the patient payment industry today announced its strategic partnership with Connance, ... system workflows. , The two companies’ proven, proprietary technology combine to provide ...
(Date:6/26/2016)... Battle Creek, Michigan (PRWEB) , ... June 26, 2016 , ... ... abuse, joined as sponsor of the 2016 Cereal Festival and World’s Longest Breakfast Table ... held in honor of the city’s history as home to some of the world’s ...
(Date:6/26/2016)... ... June 26, 2016 , ... Many women are confused ... endometriosis. These women need a treatment plan to not only alleviate symptoms and ... help for preservation of fertility and ultimately achieving a pregnancy. The specialists at ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand ... project," said Christina Austin - CEO of Pixel Film Studios. , ProHand Cartoon’s ... within Final Cut Pro X . Simply select a ProHand generator and drag ...
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, Van Mitchell, Secretary ... Work award to iHire in recognition of their exemplary accomplishments in worksite health promotion. ... Maryland Workplace Health & Wellness Symposium at the BWI Marriott in Linthicum Heights. iHire ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... June 23, 2016 Roche (SIX: RO, ROG; ... for its Elecsys BRAHMS PCT (procalcitonin) assay as a ... septic shock. With this clearance, Roche is the first ... integrated solution for sepsis risk assessment and management. ... infection and PCT levels in blood can aid clinicians ...
(Date:6/23/2016)... LOS ANGELES , June 23, 2016 /PRNewswire/ ... (NASDAQ: CAPR ), a biotechnology company ... first-in-class therapeutics, today announced that patient enrollment in ... progrEssion in Duchenne) has exceeded 50% of its ... its enrollment in the third quarter of 2016, ...
(Date:6/23/2016)... , June 23, 2016 Bracket , ... launch its next generation clinical outcomes platform, Bracket eCOA (SM) ... held on June 26 – 30, 2016 in ... first electronic Clinical Outcome Assessment product of its kind to ... #715. Bracket eCOA 6.0 is a flexible platform ...
Breaking Medicine Technology: