Assessment of corneal thickness and tear meniscus during contact-lens wear

Águila-Carrasco, Antonio J. Del; Ferrer-Blasco, Teresa; García‐Lázaro, Santiago; Esteve-Taboada, José J.; Montés‐Micó, Robert

doi:10.1016/j.clae.2015.01.010

Cited by 28 publications

(37 citation statements)

References 48 publications

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“…Tear meniscus area did not vary after eight hours of use in any of the three lenses. Some authors have suggested that a reduction in the amount of tear meniscus could be related to discomfort . Assessment of this parameter during one day of use would be valuable for further studies focused on patient satisfaction with daily disposable soft contact lenses.…”

Section: Discussionmentioning

confidence: 99%

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Impact of contact lens material and design on the ocular surface

Ruiz-Alcocer

Monsálvez-Romín

García‐Lázaro

et al. 2018

Clinical and Experimental Optometry

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Section: Discussionmentioning

confidence: 99%

“…To date no studies have assessed the integrity of the lenses and the ocular surface during and after lens use . Therefore, this study sought to assess in vivo changes in contact lens thickness of a high water content hydrogel lens, compared with two other silicone hydrogel daily disposable contact lenses.…”

mentioning

confidence: 99%

Impact of contact lens material and design on the ocular surface

Ruiz-Alcocer

Monsálvez-Romín

García‐Lázaro

et al. 2018

Clinical and Experimental Optometry

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“…Of interest, some authors have suggested that a reduction in the amount of tear meniscus may be related to discomfort, 51 and an increased tear film osmolarity has been associated with dry eye disease. 52 It is well known that contact lens use has the potential to induce symptoms of dryness and discomfort, which may be related to alterations in TO.…”

mentioning

confidence: 99%

“…These hydrogel-based lenses appear to be more resistant to dehydration 1 and do not significantly impact the tear film or corneal swelling after 1 day of normal wear. 51 As a consequence, by minimizing dehydration, lenses made in nesofilcon A compared to a lens made in a silicone hydrogel material have the potential to reduce alterations in ocular physiology during contact lens wear, while providing greater stability of the tear film with a better retinal image optical quality after a blink. In contrast, it has been reported that other commercially available lenses with a high water content may be prone to dehydration leading to loss of comfort and alterations in visual acuity.…”

mentioning

confidence: 99%

<p>Tear Film Characteristics During Wear of Daily Disposable Contact Lenses</p>

Montani¹,

Martino²

2020

OPTH

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To evaluate changes induced over time by three daily disposable (DD) contact lenses on tear meniscus height (TMH), pre-lens non-invasive break-up time (pre-lens NIBUT), tear film osmolarity (TO) and objective quality of vision (OQV). Patients and Methods: Forty-six subjects enrolled in this prospective open-label unmasked non-randomized simultaneous comparative cross-over study. For the first week of the study, subjects wore a nesofilcon A lens in the right eye and a delefilcon A lens in the left eye. After 3 days of washout, for the second week, subjects wore a nesofilcon A lens in the left eye and a stenfilcon A lens in the right eye. TMH, pre-lens NIBUT, TO and OQV were measured before contact lens fitting and for each contact lens combination on day 1 at 20 minutes and on day 7 after ≥8 hours of wear. OQV measurement included the changes of objective scatter index (OSI), the stability index (SI) and the fluctuation index (FI) calculated in a range of time of 20 s from a blink. Results: TMH was unchanged at 20 minutes wear of all lenses but was significantly reduced after 8 or more hours wear (on day 7) of delefilcon A and stenfilcon A, respectively. Pre-lens NIBUT was significantly reduced with all lenses, while no significant change in TO was observed with any lens. SI and FI increased significantly for all lenses at both wear times. Conclusion: While the presence of any contact lens on the eye challenges the tear film, nesofilcon A contact lenses, despite their high water content, compared to delefilcon A and stenfilcon A contact lenses, showed a lower overall effect. We speculate that superior tear film behavior while wearing nesofilcon A lenses may translate to improved subjective comfort, but this remains to be evaluated.

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“…A mudança de espessura e curvatura central da córnea não foi suficiente para causar sintomas visuais 4 , entretanto o volume do menisco lacrimal foi significativamente menor podendo causar sintomas de olho seco 5 .…”

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Lentes de descarte diário

Moreira

2015

e-oftalmo

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RESUMOO objetivo deste trabalho é fornecer ao oftalmologista informações sobre Lentes de Contato de Descarte Diário. Podese enumerar varias qualidades do descarte diário das lentes, todavia elas podem causar complicações se não utilizadas corretamente. ABSTRACTThe goal of this work is to supply ophthalmologists with information on daily disposable contact lenses. There are many benefits to daily disposable contact lenses, but these lenses may result in complications if not used correctly. RESUMENEl objetivo de este estudio es proporcionar información sobre las lentes de contacto oftalmólogos eliminación diaria. Uno puede enumerar varias cualidades de lentes desechables diarias, pero pueden causar complicaciones si no se utilizan correctamente.Como citar: Moreira LB. Lentes de descarte diário. e-Oftalmo.CBO: Rev Dig Oftalmol. 2015;1(4):01-03. http://dx

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Assessment of corneal thickness and tear meniscus during contact-lens wear

Cited by 28 publications

References 48 publications

Impact of contact lens material and design on the ocular surface

Impact of contact lens material and design on the ocular surface

<p>Tear Film Characteristics During Wear of Daily Disposable Contact Lenses</p>

Lentes de descarte diário

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