Corneal Staining in Hydrogel Lens Wearers

Nichols, Kelly K.; Mitchell, G. Lynn; Simon, Karen Muriel; Chivers, Dawn A.; Edrington, Timothy B.

doi:10.1097/00006324-200201000-00009

Cited by 57 publications

(50 citation statements)

References 26 publications

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“…Low grade corneal staining has also been documented in as many as 79% of non-contact lens wearers and in 33% to 55% of asymptomatic soft lens wearers. [33][34][35][36] The incidence of corneal staining observed in this study is similar to that in soft lens studies and shows that OCR wear may increase staining after the first night of wear, but not more than soft lenses on a longer-term basis. It is noteworthy that corneal staining was not significantly different between the two age groups.…”

Section: Corneal Stainingsupporting

confidence: 85%

Long-term Clinical Outcomes for Overnight Corneal Reshaping in Children and Adults

Lipson¹

2008

Eye &Amp; Contact Lens: Science &Amp; Clinical Practice

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Section: Corneal Stainingsupporting

confidence: 85%

Long-term Clinical Outcomes for Overnight Corneal Reshaping in Children and Adults

Lipson¹

2008

Eye &Amp; Contact Lens: Science &Amp; Clinical Practice

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“…Although RGP contact lens wearers are more vulnerable to 3 and 9 o'clock staining, 29 corneal staining can occur even in noncontact lens wearers 30 as well as soft contact lens wearers. 31 Orbscan has been investigated with regard to the pachymetry of 'normal' corneas and demonstrated to measure these as thicker (23-28 mm) 32,33 than comparable ultrasound measurements. However, Orbscan is noninvasive 34 and more reproducible than ultrasound and optical pachymetry.…”

Section: Discussionmentioning

confidence: 99%

The Dundee University Scottish Keratoconus study: demographics, corneal signs, associated diseases, and eye rubbing

Weed

MacEwen

Giles

et al. 2007

Eye

228

164

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Aim To investigate and correlate the corneal, refractive, topographic and familial characteristics of a large cohort with keratoconus. Methods Prospective observational study of 200 consecutive patients presenting with keratoconus during the 4 year-period 1997-2000. Subjects were examined at enrolment and at a final review. Data were collected on demographic characteristics, referral route, symptoms, refractive correction, eye rubbing, family history, medical history, slit-lamp biomicroscopic corneal signs, and computerized corneal topography. Results Mean age at enrolment was 30.9710.4 (range, 12.2-72) years (N ¼ 200, 62.5% male, 93% white Caucasian) with a 5% family history of keratoconus. Atopic diseases included asthma (23%), eczema (14%), and hay fever (30%). Only 9% wore contact lenses before referral. Mean follow-up was 1004 days 7282 (range, 390-1335) and 9.778.9 (range, 1.1-60) years from diagnosis. The mean simulated K1 corneal power at enrolment was 51.7475.36 (range, 42.59-67.32) D and 88.5% exhibited bilateral keratoconus. Fifty-three (15%) topographically confirmed cones exhibited no clinical corneal signs at presentation. At enrollment, 56% had a pachymetry o0.480 mm increasing to 77% at final review. Forty-eight percent of subjects reported significant eye rubbing and there was a highly statistically significant difference (two sample t-test P ¼ 0.018) between keratoconus and control groups. TMS-2 axial corneal power was strongly associated with corneal scarring and age at diagnosis. The size of the scarring effect was 2.2 D (95% confidence interval (CI) 1.34, 3.06). Conclusions This study provides an overview of a large population with keratoconus highlighting presenting features and clinical and topographic progression over a 4 year-period.

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“…21 Non-compliance has consequences which range in severity from reduced comfort on insertion and at the end of the day, 22 dryness and inferior vision 23 to an increased risk of microbial keratitis from sleeping in lenses not prescribed for this purpose. 24 Other physiological signs of non-compliance include deposition on the contact lenses, 18,19,25 corneal staining 18,19,26 and increases in papillae and hyperemia. 25,27 Risk taking tendencies has been linked to compliance and while not an easy direct question, they may become apparent from hobbies.…”

Section: Compliance Aspectmentioning

confidence: 99%

History and symptom taking in contact lens fitting and aftercare

Wolffsohn

Naroo

Christie

et al. 2015

Contact Lens and Anterior Eye

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This is the accepted version of the paper.This version of the publication may differ from the final published version. Abstract Aim: To appraise history and symptom taking for contact lens consultations, to determine current practice and to make recommendations for best practice. Permanent repository link Method:The peer reviewed academic literature was reviewed and the results informed a survey completed by 256 eye care practitioners (ECPs) on their current practice and influences. Results:The last eye-test date, last contact lens aftercare (for existing wearers) and reason for visit are key questions for most ECPs. Detailed use of contact lens questions are more commonly applied in aftercares than when refitting patients who have previously discontinued wear (87% vs 56% use), whereas questions on ocular and general history, medication and lifestyle were generally more commonly utilised for new patients than in aftercares (72% vs 50%). 75% requested patients bring a list of their medication to appointments. Differential diagnosis questioning was thorough in most ECPs (87% of relevant questions asked). Attempts to optimise compliance included oral instruction (95% always) and written patient instructions (95% at least sometimes). Abbreviations were used by 39% of respondents (26% used ones provided by a professional body). Conclusion:There is scope for more consistency in history and symptom taking for contact lens consultations and recommendations are made.

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Corneal Staining in Hydrogel Lens Wearers

Abstract: Staining occurs to some extent in many hydrogel contact lens patients, and is influenced by many factors. Moderate-to-severe staining, which may be more clinically significant, is associated with noncompliance with care system, a conventional replacement schedule, and lens power.

Cited by 57 publications

References 26 publications

Long-term Clinical Outcomes for Overnight Corneal Reshaping in Children and Adults

Long-term Clinical Outcomes for Overnight Corneal Reshaping in Children and Adults

The Dundee University Scottish Keratoconus study: demographics, corneal signs, associated diseases, and eye rubbing

History and symptom taking in contact lens fitting and aftercare

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