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Rueff Dissertation 2018.pdf (769.9 KB)

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Contact Lens Discomfort, Vision Correction Preferences, and Accommodative Treatment in Presbyopic and Non-Presbyopic Contact Lens Wearers

Rueff, Erin M
http://orcid.org/0000-0002-2379-0418
http://rave.ohiolink.edu/etdc/view?acc_num=osu1529583462118691

Abstract Details

2018, Doctor of Philosophy, Ohio State University, Vision Science.
Discomfort is the most cited reason for dissatisfaction with and discontinuation of contact lens wear. Most discomfort is attributed to dry eye-type etiologies, but uncomfortable contact lens wearers commonly show few objective signs of dryness, and treatments aimed at eliminating dryness often fail. Uncomfortable contact lens wearers, however, also report symptoms that are similar to binocular vision and accommodative disorders. Research in our laboratory suggested that uncomfortable wearers have an increased incidence of accommodative insufficiency and led us to hypothesize that contact lens discomfort is influenced by symptoms associated with visual discomfort and accommodative fatigue. The projects described in this dissertation sought to better understand how accommodative decline in presbyopes affects comfort and contact lens discontinuation and how alleviation of accommodative demand in non-presbyopes via a multifocal contact lens affects discomfort and satisfaction with contact lens wear. Presbyopes, a group with known accommodative insufficiency, are also known for being particularly uncomfortable contact lens wearers. Few studies, however, have specifically addressed presbyopic reasons for contact lens discontinuation. The first experiment in this dissertation describes a survey study that aimed to determine why presbyopes discontinued contact lens wear and how factors like vision and comfort influenced dropout. The results showed that vision and comfort were equal motivators for contact lens dropout. As well, discontinued contact lens wearers had a worse opinion of their vision compared to those still wearing contact lenses. The second experiment examined the different opinions non-presbyopes and presbyopes have regarding contact lens correction. This survey study found that, overall, non-presbyopes and presbyopes had similar opinions regarding spectacle and contact lens correction. Factors like gender and refractive error did not influence preference for contact lens correction in either age group, suggesting that presbyopes are as motivated to wear contact lenses as non-presbyopes. The final study, a randomized crossover clinical trial, aimed to determine how a multifocal contact lens affects comfort in a group of otherwise uncomfortable non-presbyopic (30-40 years) contact lens wearers. Subjects wore a single vision and multifocal lens for two weeks each and reported their comfort symptoms after each wear period. Comfort scores improved with both study lenses. Compared to the multifocal, subjects less than 35 years-old had better comfort with the single vision lens and preferred the single vision lens for most visual distances. Subjects 35 years-old and older showed no significant comfort or preference difference between the single vision and multifocal lenses. These results indicate that multifocal contact lens correction may induce discomfort symptoms in younger non-presbyopic contact lens wearers, but those wearers approaching age 40 years may notice no comfort difference in multifocal and single vision designs.
Melissa Bailey, OD, PhD (Advisor)
Donald Mutti, OD, PhD (Committee Member)
Teng Leng Ooi, PhD (Committee Member)
120 p.
Optics
contact lens, discomfort

Recommended Citations

Citations

  • Rueff, E. M. (2018). Contact Lens Discomfort, Vision Correction Preferences, and Accommodative Treatment in Presbyopic and Non-Presbyopic Contact Lens Wearers [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1529583462118691

    APA Style (7th edition)

  • Rueff, Erin. Contact Lens Discomfort, Vision Correction Preferences, and Accommodative Treatment in Presbyopic and Non-Presbyopic Contact Lens Wearers. 2018. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1529583462118691.

    MLA Style (8th edition)

  • Rueff, Erin. "Contact Lens Discomfort, Vision Correction Preferences, and Accommodative Treatment in Presbyopic and Non-Presbyopic Contact Lens Wearers." Doctoral dissertation, Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1529583462118691

    Chicago Manual of Style (17th edition)

osu1529583462118691
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This open access ETD is published by The Ohio State University and OhioLINK.