Abstract
Aim
To determine if a gradual adaptation period is necessary for neophytes when fitted
with modern hydrogel or silicone hydrogel reusable disposable contact lenses.
Method
Across four sites, 74 neophytes (18–28 years) were randomly assigned to a reusable
lens cleaned nightly with Opti-Free® Puremoist® multi-purpose contact lens solution:
Proclear® (hydrogel) or Biofinity® (silicone hydrogel) and an adaptation schedule:
fast (10 h wear from the first day) or gradual (4 h on the first day, increasing their
wear time by 2 h on each subsequent day until they had reached 10 h). Masked investigators
graded ocular surface physiology and non-invasive tear breakup time (NIBUT) and a
range of comfort, vision and lens handling subjective ratings (0–100 visual analogue
scales) were recorded at the baseline visit and after 10 h of lens wear, 4–6 days
and 12–14 days after lens fitting. Subjective scores were also repeated after 7 days.
Results
There was no difference (p > 0.05) in ocular surface physiology or NIBUT between fast
and gradual adaptation groups at any time point in either lens type with the exception
of increased corneal staining (p = 0.019) in the silicone hydrogel fast adaptation
group after 4–6 days, but was similar by 12–14 days. Subjective scores were also similar
across the visits and lens types with the exception of ‘lens awareness’ (p = 0.019)
which was less in the gradual versus the fast adaptation silicone hydrogel lens group
at 12–14 days.
Conclusion
There seems to be no clinical benefit for recommending a gradual adaptation period
in new wearers fitted with modern soft reusable disposable contact lenses. The findings
of this work add to a growing body of evidence suggesting that such advice is unnecessary
in regular soft contact lens wear, which has important ramifications for the initial
clinical management of these patients.
Keywords
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to Contact Lens and Anterior EyeAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Optimising contact lens wear for a lifetime of use.Optician. 2013; 245
- Mechanical properties of contact lenses: the contribution of measurement techniques and clinical feedback to 50 years of materials development.Cont Lens Anterior Eye. 2017; 40: 70-81
- Rigid lens dynamics: lid effects.CLAO J. 1997; 23: 69-77
- Fast versus gradual adaptation of soft daily disposable contact lenses in neophyte wearers.Cont Lens Anterior Eye. 2020; 43: 268-273
- International Contact Lens Prescribing in 2020. 35.Contact Lens Spectrun. 2020; : 26-32
- Contact lens-related adverse events and the silicone hydrogel lenses and daily wear care system used.Arch Ophthalmol. 2009; 127: 1616-1623
- Effect of lens care systems on the clinical performance of a contact lens.Optom Vis Sci. 2013; 90: 344-350
- Contact lens deposits, adverse responses, and clinical ocular surface parameters.Optom Vis Sci. 2010; 87: 669-674
- Clinical benefits of a new multipurpose disinfecting solution in silicone hydrogel and soft contact lens users.Eye Contact Lens. 2012; 38: 93-101
- Grading scales for contact lens complications.Ophthalmic Physiol Opt. 1998; 18: 182-186
- Optimization of anterior eye fluorescein viewing.Am J Ophthalmol. 2006; 142: 572-575
- Simplified recording of soft contact lens fit.Cont Lens Anterior Eye. 2009; 32: 37-42
- Validation of grading scales for contact lens complications.Ophthalmic Physiol Opt. 2001; 21: 17-29
- Thinning rate of the precorneal and prelens tear films.Invest Ophthalmol Vis Sci. 2005; 46: 2353-2361
- The effect of short term contact lens wear on the tear film and ocular surface characteristics of tolerant and intolerant wearers.Cont Lens Anterior Eye. 2006; 29 (quiz 9): 41-47
- The impact of hydrogel lens settling on the thickness of the tears and contact lens.Invest Ophthalmol Vis Sci. 2004; 45: 2549-2554
- Comparison of ocular comfort, vision, and SICS during silicone hydrogel contact lens daily wear.Eye Contact Lens. 2012; 38: 2-6
- Repeatability and correlation of tear ferning with lipid layer thickness, non-invasive tear break up time and OSDI.American Academy of Optometry, Anaheim2016
- Repeatability and agreement of five imaging systems for measuring anterior segment parameters in healthy eyes.Indian J Ophthalmol. 2017; 65: 288-294
- Factors in the success of new contact lens wearers.Cont Lens Anterior Eye. 2017; 40: 15-24
- The ACLM contact lens year book 2020.Devizes: Association of Contact Lens Manufacturers, 2020
Article info
Publication history
Published online: May 22, 2021
Accepted:
May 9,
2021
Received in revised form:
April 30,
2021
Received:
March 23,
2021
Identification
Copyright
© 2021 British Contact Lens Association. Published by Elsevier Ltd. All rights reserved.
