Literature DB >> 19265325

Expanding your use of silicone hydrogel contact lenses: using lotrafilcon A for daily wear.

Bill Long1, Helmer Schweizer, Hans Bleshoy, Fabrizio Zeri.   

Abstract

OBJECTIVE: The purpose of this study was to profile contact lens (CL) experience among patients in eyecare practitioner (ECP) offices and the response to daily wear (DW) of lotrafilcon A silicone hydrogel CLs.
METHODS: Patients at ECP offices were surveyed for their vision correction modality and experience with CLs. Adapted, new, and former CL wearers who were interested in trying CLs were dispensed lotrafilcon A (NIGHT & DAY, CIBA VISION, Duluth, GA) lenses for a 1 month trial of DW.
RESULTS: One thousand eight hundred sixty-five surveys were returned with 60% indicating current CL use averaging 6.4 days/week, 13.6 hr/day with 92% satisfied with their current lenses and 58% comfortable all day. Two hundred sixteen patients (59% adapted hydroxyl-ethylmethacrylate or rigid gas permeable CL wearers, 21% new/former, 20% no answer) were enrolled to wear lotrafilcon A CLs. Lens care systems were chosen for new and former wearers by the ECPs from among those approved and available in the countries and were primarily multipurpose systems. Among adapted CL wearers, statistically significant improvements were found within 2 weeks for conjunctival redness (P = 0.023), limbal redness (P< 0.001), corneal neovascularization (P < 0.001), during the day and end-of-day dryness (P = 0.02 for each) and early removal because of dryness (P = 0.02). Seventy-two percent reported comfort all day with lotrafilcon A CLs. New and former wearers at 2 weeks showed increased epithelial microcysts (P = 0.048). New and former wearers at 2 weeks compared with adapted wearers at baseline had less frequent early removal during the day, burning or stinging, uncomfortable lenses, and photophobia while reporting more problems inserting and removing lenses. No adverse events were reported with lotrafilcon A CLs. Adapted CL wearers showed improved clinical signs, subjective symptoms, and comfort when changed to lotrafilcon A for DW. New or former wearers showed few significant changes from baseline in clinical signs and had symptoms similar to nonsilicone hydrogel wearers.
CONCLUSIONS: Lotrafilcon A lenses can be successfully dispensed for DW.

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Year:  2009        PMID: 19265325     DOI: 10.1097/ICL.0b013e318196ade7

Source DB:  PubMed          Journal:  Eye Contact Lens        ISSN: 1542-2321            Impact factor:   2.018


  3 in total

1.  Oxygen permeability of soft contact lenses in different pH, osmolality and buffering solution.

Authors:  Se Eun Lee; So Ra Kim; Mijung Park
Journal:  Int J Ophthalmol       Date:  2015-10-18       Impact factor: 1.779

2.  Thickness changes in the corneal epithelium and Bowman's layer after overnight wear of silicone hydrogel contact lenses.

Authors:  Fan Lu; Aizhu Tao; Weiwei Tao; Xiran Zhuang; Meixiao Shen
Journal:  BMC Ophthalmol       Date:  2018-11-03       Impact factor: 2.209

Review 3.  Advanced drug delivery and targeting technologies for the ocular diseases.

Authors:  Jaleh Barar; Ayuob Aghanejad; Marziyeh Fathi; Yadollah Omidi
Journal:  Bioimpacts       Date:  2016-03-30
  3 in total

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