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The Effect of the AcrySof natural lens on glare disability and photostress

Am J Ophthalmol. 2009 Aug;148(2):272-276.e2. doi: 10.1016/j.ajo.2009.03.014. Epub 2009 May 7. The Effect of the AcrySof natural lens on glare disability and photostress. Hammond BR1, Bernstein B, Dong J. Author information Abstract PURPOSE: To investigate whether implanting “blue-filtering” yellow intraocular lenses (IOL) could provide a visual benefit in terms of glare disability and photostress recovery. DESIGN: A case-control study. METHODS: Researchers masked to group assignments tested 58 subjects: 17 with yellow IOLs (AcrySof Natural; SN60WF; …

Orthokeratology Lenses

orthokeratology If you can see objects that are in close proximity more clearly than those that are viewed from a distance, an eye health professional will most likely diagnose your condition as nearsightedness-otherwise defined as myopia. Myopic eyes are unable to correctly focus the light that enters it. Eyes that are unaffected by myopia are able to refract or bend the light correctly, throwing it back to the retina. A myopia diagnosis does not indicate …

Intra Ocular Lenses

What are Intra Ocular Lenses (IOLs) ? Intraocular lens (IOL) is a lens implanted in the eye used to treat cataracts or myopia. The most common type of IOL is the pseudophakic IOL. These are implanted during cataract surgery, after the cloudy crystalline lens (otherwise known as a cataract) has been removed. As well as the calculated power for correction of the refractive error, IOLs usually come in different filters and colors to protect the …

Specilaity Contact Lenses

What are scleral lenses? Scleral lenses are large gas permeable lenses that rest on the sclera and by bridging the cornea , create a cushion of thick tear layer that can treat eye surface disease and correct the corneal irregularities . Scleral lens candidates: Corneal irregularities: All patients with corneal irregularities such as KCN, trauma, corneal surgery complications are candidates for scleral lenses.Ocular surface disease: Another common reason for prescribing scleral lenses is to manage …

Rigid Gas Permeable

Rigid Gas Permeable : RGP Gas permeable (GP) contact lenses are also known as rigid gas permeables (RGP’s). Although today’s gas permeable lenses are made of a rigid material that is not flexible, they differ greatly from the original hard lenses of yesteryear. Hard contact lenses made of polymethylmethacrylate (PMMA), were introduced in the 1930’s. Considered innovative and technologically advanced for the time, these hard lenses were nearly rendered obsolete by soft lenses that debuted …

What are soft contact lenses?

Soft contact lenses Soft contact lenses are made of durable plastic and rest directly on your eye surface. They are used for refractive error correction, cosmetic, and medical purposes such as bandage. Soft contact lenses are categorized in groups based on their material, wearing schedule, replacement time. In new generation of silicon hydrogel lenses, BYO COMFORT, hyaluronic acid is used. This makes the matrix of the lens extremely compatible with biomechanics of the eye, gives …

Eye glasses vs contact lenses

Eye Glasses vs contact lenses : ✔ Contacts conform to the curvature of your eye, providing a wider field of view and causing less vision distortions and obstructions than eyeglasses. ✔ Contact lenses don’t get in the way when playing sports and exercising. ✔ Contact lenses won’t clash with what you’re wearing. ✔ Contacts typically aren’t affected by weather conditions and won’t fog up in cold weather like glasses. ✔ If you want to see …

Modern Scleral Lenses Part I: Clinical Features

Purpose. To evaluate the indications for modern scleral lenses and their clinical performance in patients who were fitted with scleral lenses at the authors’ practices. Methods. In this cross-sectional survey, all the necessary data were obtained at the first follow-up visit during the 5-month study period. There were four types of scleral lenses: spherical, front-surface toric, back-surface toric, and bitoric. The preformed scleral lens fitting technique developed at Visser Contact Lens Practice was used in …

Effects of Contact Lenses on the Ocular Surface in Patients With Keratoconus: Piggyback Versus ClearKone Hybrid Lenses

Objective: Because patients with keratoconus tend to wear contact lens for a long period of time, they are more prone to ocular surface changes induced by the lenses. This study aimed to compare immunohistochemical changes induced by two different types of contact lenses in patients with keratoconus. Methods: Twenty-four contact lens–naive keratoconus patients (30 eyes) were included in this prospective study. Group 1 comprised 14 eyes (12 patients) wearing piggyback lenses, and group 2 comprised …

SynergEyes Lenses for Keratoconus

Purpose: To discuss the initial results of fitting SynergEyes hybrid contact lenses (SynergEyes, Inc, Carlsbad, CA) for keratoconus (KC) and pellucid marginal degeneration (PMD).Methods: The charts of patients fit with SynergEyes lenses during the first 7 months the lens was available on the Cornea Service at Wills Eye Institute (August 3, 2006 to March 5, 2007) were retrospectively reviewed.Results: Sixty-one eyes (44 patients) with KC (58 eyes) or PMD (3 eyes) were fit with SynergEyes …

Contact Lenses in the Management of Keratoconus

Abstract: The range of contact lens modalities currently available for the successful optical correction of keratoconus is greatly expanded. We review lens types currently available for the nonsurgical management of keratoconus, including rigid gas-permeable (GP) lenses, intralimbal lenses, corneoscleral lenses, scleral lenses, hybrid lenses, and piggyback lenses. In this review, we discuss the contemporary range of available lens types and the circumstances in which they are best used.Key Words: keratoconus,contactlenses,scleralcontactlenses,specialty contact lenses, gas permeable contact …

Synergeyes Versus Soft Toric Lenses: Vision-Related Quality of Life

ABSTRACT Purpose. The purpose of this study is to contrast the clinical and vision-related quality of life outcomes between Synergeyes, a hybrid contact lens, and Bausch & Lomb Soflens 66 Toric contact lenses in a cross-over design. Also, to determine subject preference of one mode of lens wear over the other. Methods. The Synergeyes lens has a central rigid gas permeable portion made of Paragon HDS100 material (paflufocon D) bonded to the nonionic hydrophilic skirt …

Predictive Value of Corneal Topography for ClearKone Hybrid Contact Lenses

ABSTRACT Purpose. The purpose of this study was to evaluate the predictive value of corneal topography data for fitting ClearKone hybrid contact lenses on eyes with corneal ectasia. Methods. Ophthalmic records from eyes with established corneal ectasia that had been successfully fitted with SynergEyes ClearKonelenses(n=73)wereretrospectivelyreviewed.Correlationsbetweencornealparameters(simulatedsteepandflat keratometry values, average corneal sagittal height, inferior-superior index for keratoconus, corneal eccentricity, cone displacement, and cone diameter) and ClearKone lens parameters (vault and skirt curvature) were analyzed. Results. Twotopographicalcorrelates toClearKonelensparameters …

Oxygen Demands with Hybrid Contact Lenses

ABSTRACT Purpose. The purpose of this study was to assess the corneal response, as measured by corneal oxygen uptake, of keratoconic corneas to SoftPerm and SynergEyes hybrid contact lenses at the central cornea, 2.0 and 4.5 mm temporal to the central cornea, and 1 mm temporal to the limbus. Methods. Corneal oxygen uptake rates were measured with a Clark-type polarographic electrode on the right eyes of 14 subjects and the left eye of 1 subject, …

Contact Lens Visual Rehabilitation in Keratoconus and Corneal Keratoplasty

Keratoconus is the most common corneal distrophy. It’s a noninflammatory progressive thinning process that leads to conical ectasia of the cornea, causing high myopia and astigmatism. Many treatment choices include spectacle correction and contact lens wear, collagen cross linking, intracorneal ring segments implantation and finally keratoplasty. Contact lenses are commonly used toreduceastigmatismandincreasevision.Therearevarioustypesof lensesareavailable.Wereviewedsoftcontactlenses,rigidgas permeable contact lenses, piggyback contact lenses, hybrid contact lenses and scleral-semiscleral contact lenses in keratoconus management.Thesurgicaloptioniskeratoplasty,butevenaftersuturremoval,highastigmatismmaystilexists.Therefore,contact lens is an adequate treatment option …

Ote sensation

Innovative all-in-one solution with duo antibacterial system and extra wearing comfort due to the addition of high quality Sodium Hyaluronate.