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HomeminewsMore Demand From Vision Correction

More Demand From Vision Correction

A study conducted across seven countries found that vision was the most important factor when choosing eye-related products. The Needs, Symptoms, Incidence, Global Eye Health Trends (NSIGHT) study surveyed 3,800 spectacle- and contact lens-corrected subjects, 15 to 65 years of age.1

Many patients complain of symptoms such as halos, glare, and blurry or hazy vision2,3,4 despite having their refractive error corrected by glasses or contact lenses.

One potential source of glare and halos are higher-order aberrations (HOA) of the eye. Each individual has a unique pattern of HOA.5,6 HOA, which include spherical aberration, have a role in determining potential vision for patients.5

People who spend a great deal of time participating in activities that occur in low-light situations such as night driving, movies or lectures can experience the visual effects of spherical aberration.

People who spend a great deal of time participating in activities that occur in low-light situations such as night driving, movies or lectures can experience the visual effects of spherical aberration.

A new product released by Bausch+Lomb is designed to help solve patients’ critical visual needs a correct spherical aberration. PureVision2 incorporates High Definition Optics into the contact lenses to reduce spherical aberration across the entire power range.

Optometrist, Mr. Gavin Swartz said, “Many patients trialling PureVision2 HD have noticed their vision to be ‘sharper’ than their previous vision correction. In particular, patients report an improvement in halos and glare when driving at night.”

According to Bausch and Lomb, the new profile design of PureVision2 HD also enhances comfort and provides improved oxygen transmission to the eye.

References:

1. Nichols JJ, Mitchell GL , Zadnik K. The performance of the refractive status and vision profile survey in a contact lens clinical trial. Ophthalmology 2001;108:1160-6.

2. S chlote T, Kriegerowski M, Bende T, Derse M, Thiel HJ, Jean B. Mesopic vision in myopia corrected by photorefractive keratectomy, soft contact lenses, and spectacles. J Cataract Refract Surg 1997;23:718-25.

3. Piers PA , Manzanera S, Prieto PM, Gorceix N, Artal P. Use of adaptive optics

to determine the optimal ocular spherical aberration. J Cataract Refract

Surg. 2007 Oct;33(10):1721-6.

4. Legras R, Rouger H. Just-Noticeable Levels of Aberration Correction. J

Optom. 2008;1:71-7.

5. Needs, Symptoms, Incidence, Global Eye Health Trends (NSIGHT) Study. Market Probe Europe: December 2009.

6. Allen RJ, Saleh GM , Litwin AS, Sciscio A, Beckingsale AB, Fitzke FW. Glare and halo with refractive correction.Clin Exp Optom 2008;91:156-60.