Optometry Product Guide » Contact Lens

Toric Soft Contact LensStability In Extreme Versions And Postural Positions Can Affect Orientation And Visual Acuity, Study Shows

Jim Marino — Fri, 22 Jan 2010 04:25:42 +0000

Toric soft contact lens design affects lens stability and visual acuity, particularly during abnormal gaze movements, according to a new study. The research, which compared the effect of gaze direction and posture on toric lens orientation and visual acuity of contact lenses using either an Accelerated Stabilization Design or Prism Ballast Design, is published in the current issue of Contact Lens & Anterior Eye, the official journal of the British Contact Lens Association.

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Ocutec Granted CE Mark Approval for its PEG Hydrogel-Based Contact Lens

Jim Marino — Thu, 26 Nov 2009 15:21:09 +0000

Ocutec Ltd, the has announced at the American Academy of Optometry Meeting in Orlando CE Mark approval for its first poly(ethylene) glycol (PEG) hydrogel-based contact lens product. In initial patient acceptance trials, this next generation of lenses has demonstrated superior oxygen permeability compared to existing hydrogel based lenses. It is anticipated that the lenses will provide similar health benefits to silicone hydrogels without the drawbacks of incorporating hydrophobic silicone into the lens polymer.

Study: astigmatism, myopia can be treated by posterior chamber phakic IOL

Jim Marino — Thu, 20 Aug 2009 07:02:07 +0000

A study showed that posterior chamber phakic IOL implantation treated myopia and astigmatism in patients who underwent previous penetrating keratoplasty (PK). The prospective study included 15 eyes of 15 patients with a mean age of 37.8 years who underwent previous PK and were unable to wear spectacles or contact lenses or to undergo corneal refractive surgery.

Contact lens effective in drug delivery: Study

Jim Marino — Thu, 30 Jul 2009 04:57:01 +0000

According to findings published in Investigative Ophthalmology & Visual Science, drug-releasing contact lenses may provide correct and consistent dosages of medication for patients. The artificial lens delivers a constant dose of the medication, which increases the effectiveness of the treatment, according to researchers. This ability is particularly important for glaucoma patients, who on average administer drops accurately at rates between 41% and 76%, they said.

Study: New age disposable lens prevents corneal infection

Jim Marino — Mon, 06 Oct 2008 04:55:41 +0000

Australian researchers at the Moorfields Eye Hospital in London have conducted a study which reveals that the rate of corneal infection related to contact lens is 4.2 per 10,000 wearers per year. The scientists, in the first study of its kind, seek to describe the incidence of infection associated with the two new kinds of lenses introduced with the expectation of reducing the risk of infection — daily disposable soft lenses (launched in 1995), and silicone hydrogel lenses (launched in 1999). Planned replacement soft lens is better and safe for the eyes. The new age soft lens, Silicone hydrogel lens users who kept their lenses in overnight had the greatest disease incidence. But, proper use of daily disposable lenses made them the one with the lowest risk of a severe form of disorder as elimination of storage reduced the probability of contamination.

Contact lens design can cause fluctuating vision

Jim Marino — Fri, 07 Mar 2008 16:24:26 +0000

People who wear contact lenses sometimes face the problem of their vision fluctuating during the day. The answer to this problem may lie in the design of their contact lens, according to a new clinical study published in Optometry and Vision Science, the peer-reviewed journal of the American Academy of Optometry. The researchers indicates that their findings could be of particular relevance to people who wear soft toric contact lenses for the treatment of astigmatism, a common vision condition in which surfaces of the eye, including the cornea, have an oval shape.