Corneal Biomechanical Findings in Contact Lens Induced Corneal Warpage
Purpose. To evaluate the difference in biomechanical properties between contact lens induced corneal warpage and normal and keratoconic eyes. Method. Prospective observational case control study, where 94 eyes of 47 warpage suspicious and 46 eyes of 23 keratoconic patients were included. Warpage sus...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2016/5603763 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832564443708391424 |
|---|---|
| author | Fateme Alipour Mojgan Letafatnejad Amir Hooshang Beheshtnejad Seyed-Farzad Mohammadi Seyed Reza Ghaffary Narges Hassanpoor Mehdi Yaseri |
| author_facet | Fateme Alipour Mojgan Letafatnejad Amir Hooshang Beheshtnejad Seyed-Farzad Mohammadi Seyed Reza Ghaffary Narges Hassanpoor Mehdi Yaseri |
| author_sort | Fateme Alipour |
| collection | DOAJ |
| description | Purpose. To evaluate the difference in biomechanical properties between contact lens induced corneal warpage and normal and keratoconic eyes. Method. Prospective observational case control study, where 94 eyes of 47 warpage suspicious and 46 eyes of 23 keratoconic patients were included. Warpage suspected cases were followed until a definite diagnosis was made (warpage, normal, or keratoconus). Results. 44 eyes of 22 patients had contact lens related corneal warpage. 46 eyes of 23 people were diagnosed as nonwarpage normal eyes. 46 eyes of 23 known keratoconus patients were included for comparison. The mean age of the participants was 23.8 ± 3.8 years, and 66.2% of the subjects were female. The demographic and refractive data were not different between warpage and normal groups but were different in the keratoconus group. The biomechanical properties (corneal hysteresis or CH and corneal resistance factor or CRF) were different with the highest value in the warpage group followed by normal and keratoconus groups. CRF was 10.08 ± 1.75, 9.23 ± 1.22, and 7.38 ± 2.14 and CH was 10.21 ± 1.57, 9.59 ± 1.21, and 8.69 ± 2.34 in the warpage, normal, and keratoconus groups, respectively. Conclusion. Corneal biomechanics may be different in people who develop contact lens induced warpage. |
| format | Article |
| id | doaj-art-f8b221b6b7654129b7409798f05f40b8 |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-f8b221b6b7654129b7409798f05f40b82025-02-03T01:11:09ZengWileyJournal of Ophthalmology2090-004X2090-00582016-01-01201610.1155/2016/56037635603763Corneal Biomechanical Findings in Contact Lens Induced Corneal WarpageFateme Alipour0Mojgan Letafatnejad1Amir Hooshang Beheshtnejad2Seyed-Farzad Mohammadi3Seyed Reza Ghaffary4Narges Hassanpoor5Mehdi Yaseri6Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, IranTehran University of Medical Sciences, Tehran, IranEye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, IranEye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, IranEye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, IranEye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, IranEye Research Center and Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, IranPurpose. To evaluate the difference in biomechanical properties between contact lens induced corneal warpage and normal and keratoconic eyes. Method. Prospective observational case control study, where 94 eyes of 47 warpage suspicious and 46 eyes of 23 keratoconic patients were included. Warpage suspected cases were followed until a definite diagnosis was made (warpage, normal, or keratoconus). Results. 44 eyes of 22 patients had contact lens related corneal warpage. 46 eyes of 23 people were diagnosed as nonwarpage normal eyes. 46 eyes of 23 known keratoconus patients were included for comparison. The mean age of the participants was 23.8 ± 3.8 years, and 66.2% of the subjects were female. The demographic and refractive data were not different between warpage and normal groups but were different in the keratoconus group. The biomechanical properties (corneal hysteresis or CH and corneal resistance factor or CRF) were different with the highest value in the warpage group followed by normal and keratoconus groups. CRF was 10.08 ± 1.75, 9.23 ± 1.22, and 7.38 ± 2.14 and CH was 10.21 ± 1.57, 9.59 ± 1.21, and 8.69 ± 2.34 in the warpage, normal, and keratoconus groups, respectively. Conclusion. Corneal biomechanics may be different in people who develop contact lens induced warpage.http://dx.doi.org/10.1155/2016/5603763 |
| spellingShingle | Fateme Alipour Mojgan Letafatnejad Amir Hooshang Beheshtnejad Seyed-Farzad Mohammadi Seyed Reza Ghaffary Narges Hassanpoor Mehdi Yaseri Corneal Biomechanical Findings in Contact Lens Induced Corneal Warpage Journal of Ophthalmology |
| title | Corneal Biomechanical Findings in Contact Lens Induced Corneal Warpage |
| title_full | Corneal Biomechanical Findings in Contact Lens Induced Corneal Warpage |
| title_fullStr | Corneal Biomechanical Findings in Contact Lens Induced Corneal Warpage |
| title_full_unstemmed | Corneal Biomechanical Findings in Contact Lens Induced Corneal Warpage |
| title_short | Corneal Biomechanical Findings in Contact Lens Induced Corneal Warpage |
| title_sort | corneal biomechanical findings in contact lens induced corneal warpage |
| url | http://dx.doi.org/10.1155/2016/5603763 |
| work_keys_str_mv | AT fatemealipour cornealbiomechanicalfindingsincontactlensinducedcornealwarpage AT mojganletafatnejad cornealbiomechanicalfindingsincontactlensinducedcornealwarpage AT amirhooshangbeheshtnejad cornealbiomechanicalfindingsincontactlensinducedcornealwarpage AT seyedfarzadmohammadi cornealbiomechanicalfindingsincontactlensinducedcornealwarpage AT seyedrezaghaffary cornealbiomechanicalfindingsincontactlensinducedcornealwarpage AT nargeshassanpoor cornealbiomechanicalfindingsincontactlensinducedcornealwarpage AT mehdiyaseri cornealbiomechanicalfindingsincontactlensinducedcornealwarpage |