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Rueff Master's Thesis.pdf (2.32 MB)

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Contact lens induced dry eye and binocular vision disorders: A study of similar symptoms

Rueff, Erin
http://orcid.org/0000-0002-2379-0418
http://rave.ohiolink.edu/etdc/view?acc_num=osu1397167126

Abstract Details

2014, Master of Science, Ohio State University, Vision Science.
Purpose: To determine a relationship between symptomatic contact lens induced dry eye (CLIDE) and non-strabismic binocular vision (BV) and accommodative disorders. Methods: Twenty-nine myopic soft contact lens wearing subjects with subjective dry eye symptoms were recruited. Subjects completed symptom surveys to assess and grade severity of dry eye, CLIDE, and binocular vision disorder symptoms. Symptom surveys utilized were the Ocular Surface Disease Index (OSDI), the Contact Lens Dry Eye Questionnaire -8 (CLDEQ-8), and the Convergence Insufficiency Symptom Survey (CISS). Basic binocular vision assessment was performed on each subject when corrected with contact lenses. Binocular vision and accommodative tests included visual acuity, heterophoria at distance and near, near point of convergence (NPC), step positive and negative fusional vergence, and accommodative lag/lead assessment. Subjects removed their contact lenses and dry eye testing, including tear break-up time (TBUT), ocular staining, Meibomian gland assessment, and Schirmer test, was performed. Results: Subjects with symptomatic CLIDE were more likely to have significant BV disorder signs than dry eye signs (50% vs 40%). However, this difference was not statistically significant. (p = 0.782). 60% of subjects with no dry eye signs and 53.33% of subjects with =1 dry eye sign had significant (=2) BV disorder signs. 48.28% of subjects had significant BV disorder signs. Pseudo convergence insufficiency (PCI) was the most common BV disorder (64.29%), followed by convergence insufficiency (21.43%), and convergence excess (14.29%). OSDI and CISS scores were not significantly correlated (p = 0.167). Presence of significant dry eye symptoms was related to the number of BV disorder signs seen in symptomatic dry eye subjects (p = 0.014). Discussion: Subjects with few or no signs of ocular dryness may be experiencing a concurrent or stand-alone binocular vision disorder. BV and accommodative disorders, especially accommodative insufficiency and resultant PCI, were common in this population of myopic soft contact lens wearers. A future larger-scale study that utilizes a masked examiner will better define these relationships. Clinicians should screen symptomatic CLIDE patients for binocular vision disorders. CLIDE and general dry eye studies should assess basic BV function in order to exclude subjects with BV disorders.
Melissa Bailey, OD, PhD (Advisor)
59 p.
Optics
contact lenses, dry eye, binocular vision disorders

Recommended Citations

Citations

  • Rueff, E. (2014). Contact lens induced dry eye and binocular vision disorders: A study of similar symptoms [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397167126

    APA Style (7th edition)

  • Rueff, Erin. Contact lens induced dry eye and binocular vision disorders: A study of similar symptoms. 2014. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1397167126.

    MLA Style (8th edition)

  • Rueff, Erin. "Contact lens induced dry eye and binocular vision disorders: A study of similar symptoms." Master's thesis, Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397167126

    Chicago Manual of Style (17th edition)

osu1397167126
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This open access ETD is published by The Ohio State University and OhioLINK.