Patient Preferences and Comparative Ocular Responses to Rigid and Soft Contact Lenses

Fonn, Desmond; Gauthier, Charline; Pritchard, Nicola

doi:10.1097/00006324-199512000-00003

Cited by 42 publications

(29 citation statements)

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“…Rigid lenses have traditionally been perceived as being more uncomfortable than soft lenses. 21 However, Morgan et al 22 have shown that new patients fitted with continuous-wear traditional rigid lenses can achieve levels of comfort equivalent to soft lenses after 1 week of daily wear followed by one night of continuous wear. Overnight orthokeratology now removes the need to adapt to the lenses during the day, which may make wearing the lenses easier for nonadapted rigid lens wearers.…”

Section: Discussionmentioning

confidence: 99%

Empirical Versus Trial Set Fitting Systems for Accelerated Orthokeratology

Maldonado‐Codina

Efron

Morgan

et al. 2005

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

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Both lens types investigated in this study were effective in temporarily reducing myopia and in providing good unaided visual acuity during the day (without lenses) in subjects with low levels of myopia. Subjective reaction showed that the lenses were perceived as being equally effective, but clinical data showed that the BE lens effected more myopic reduction and better unaided visual acuity than did the No. 7 lens during the 7-day period investigated.

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Section: Discussionmentioning

confidence: 99%

Empirical Versus Trial Set Fitting Systems for Accelerated Orthokeratology

Maldonado‐Codina

Efron

Morgan

et al. 2005

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

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“…16 Over the past 30 years, soft contact lenses have been considered to be more comfortable than gas-permeable contact lenses. 17 However, the latter seems to be the case for neophyte contact lens wearers only because experienced rigid contact lens wearers tend to report higher contact lens wearing comfort scores than neophyte soft contact lens wearers. 18 Although silicone-hydrogel lenses might slightly improve ocular comfort toward the end of the day versus hydrogel contact lenses, the debate as to which of the two contact lenses are more comfortable still continues.…”

mentioning

confidence: 99%

Ocular Surface Comfort During the Day Assessed by Instant Reporting in Different Types of Contact and Non–Contact Lens Wearers

Santodomingo-Rubido

Barrado-Navascués

Rubido-Crespo

2010

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

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Hydrogel and silicone-hydrogel contact lens wearers' comfort scores are reduced at night compared with morning. The slight comfort reduction at night versus morning found in non-contact lens wearers might be related to ocular or general physical fatigue, which suggest the possibility that reduced end-of-day comfort reported by contact lens wearers might not be solely related to contact lens wear. The results of this study also suggest that interpretation of comfort scores should be carried out with caution.

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“…RGP lenses are also rarely used for extended wear, probably because they are relatively more uncomfortable than soft lenses. 23 The measurement of corneal swelling in response to wearing a contact lens can be used as an index of the oxygen transmissibility of the lens. An overnight corneal swelling studyz4 was conducted on 20 adapted soft lens wearers to compare the corneal swelling response of a high Dk Balafilcon A silicone hydrogel lens (Dk/T = 110 x in one eye to Lidofilcon A 70 per cent H,O (Dk/T = 22 x lo-') worn in the other eye.…”

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confidence: 99%

The ocular response to extended wear of a high Dk silicone hydrogel contact lens

Fonn

MacDonald

Richter

et al. 2002

Clinical and Experimental Optometry

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Purpose: A four-month extended wear clinical trial was conducted to compare the ocular effects of a high Dk Balafilcon A silicone hydrogel lens and a low Dk HEMA 38.6 per cent H, O soft lens. Method Twenty-four subjects who were adapted to daily wear of soft lenses wore a high Dk lens in one eye and a low Dk HEMA lens in the other eye for four months on an extended wear basis after one week of daily wear. Thirteen progress evaluations were conducted using standard clinical procedures.Results: Eighteen subjects (75 per cent) completed the study. The high Dk lens induced significantly less bulbar and limbal injection and corneal vascularisation than the low Dk HEMA lens (p < 0.05). Epithelial microcysts were observed only in the eyes wearing the low Dk lens. A significant increase in myopia was found in the eyes wearing the low Dk HEMA lens (mean = 0.50 D, p < 0.01) compared to the insignificant myopic increase of 0.06 D in the eyes wearing the high Dk lens. Three subjects developed small infiltrates in the high Dk lens wearing eyes and significantly more post-lens debris was observed under the high Dk lens. Six subjects developed papillary conjunctivitis in the eye wearing silicone hydrogel lenses but only two of those were discontinued from the study. Conclusion:No hypoxia-related effects were observed with extended wear of the high Dk Balafilcon A silicone hydrogel lens.

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Patient Preferences and Comparative Ocular Responses to Rigid and Soft Contact Lenses

Cited by 42 publications

References 0 publications

Empirical Versus Trial Set Fitting Systems for Accelerated Orthokeratology

Empirical Versus Trial Set Fitting Systems for Accelerated Orthokeratology

Ocular Surface Comfort During the Day Assessed by Instant Reporting in Different Types of Contact and Non–Contact Lens Wearers

The ocular response to extended wear of a high Dk silicone hydrogel contact lens

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