Version 1
: Received: 29 December 2023 / Approved: 3 January 2024 / Online: 3 January 2024 (10:37:16 CET)
How to cite:
Hoshi, K.; Dannoue, K.; Yoshida, J.; Namba, H.; Usui, T. Blepharoptosis Associated with Hard Contact Lens Wearing in Keratoconic Eyes. Preprints2024, 2024010096. https://doi.org/10.20944/preprints202401.0096.v1
Hoshi, K.; Dannoue, K.; Yoshida, J.; Namba, H.; Usui, T. Blepharoptosis Associated with Hard Contact Lens Wearing in Keratoconic Eyes. Preprints 2024, 2024010096. https://doi.org/10.20944/preprints202401.0096.v1
Hoshi, K.; Dannoue, K.; Yoshida, J.; Namba, H.; Usui, T. Blepharoptosis Associated with Hard Contact Lens Wearing in Keratoconic Eyes. Preprints2024, 2024010096. https://doi.org/10.20944/preprints202401.0096.v1
APA Style
Hoshi, K., Dannoue, K., Yoshida, J., Namba, H., & Usui, T. (2024). Blepharoptosis Associated with Hard Contact Lens Wearing in Keratoconic Eyes. Preprints. https://doi.org/10.20944/preprints202401.0096.v1
Chicago/Turabian Style
Hoshi, K., Hiroyuki Namba and Tomohiko Usui. 2024 "Blepharoptosis Associated with Hard Contact Lens Wearing in Keratoconic Eyes" Preprints. https://doi.org/10.20944/preprints202401.0096.v1
Abstract
Keratoconus is a condition that causes progressive thinning and anterior protrusion of the cornea. Because of its irregular astigmatism, mild to moderate keratoconus is corrected with hard contact lenses (HCL), but blepharoptosis due to long-term wear is often a problem. In this study, we investigated blepharoptosis in hard contact lens wearers with keratoconus. Thirty seven keratoconic eyes were enrolled and divided into several groups according to their wearing history or age. Eyelid margin distance (EMD), margin light reflex distance-1 (MRD-1) and eyelid elevator muscle function were measured by ruler or anterior segment optical coherence tomography. EMD decreased with years of HCL wear but showed no correlation with age; MRD-1 decreased with years of wear and with older age; LF showed no relationship with either years of wear or age. In the classification of ptosis, there was no severe ptosis in the present sample. Long-term wear of HCLs is likely to cause blepharoptosis even in keratoconic eyes, but its degree may be mild.
Keywords
keratoconus; blepharoptosis; hard contact lenses
Subject
Medicine and Pharmacology, Ophthalmology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
