The Effect of Strabismus Muscle Surgery on Corneal Biomechanics
| Autor: | Heba A. El Gendy, Noha M. Khalil, Iman M. Eissa, Shireen MA. Shousha |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Journal of Ophthalmology, Vol 2018 (2018) |
| Druh dokumentu: | article |
| ISSN: | 2090-004X 2090-0058 |
| DOI: | 10.1155/2018/8072140 |
| Popis: | Purpose. Studying the early effect of different extraocular muscle (EOM) surgeries on corneal biomechanics. Subjects and methods. This is a prospective, nonrandomized, interventional study, in which 42 eyes of 29 candidates for EOM surgery for strabismus correction at Cairo university hospitals, aged 14–37 years, were recruited. All participants had measuring of the visual acuity, refraction (spherical equivalent (SE)), assessment of the EOM motility and muscle balance, sensory evaluation, fundus examination, and assessing the ocular biomechanics using the Ocular response analyzer (ORA, Reichert, INC., Depew, NY) noting the corneal hysteresis (CH) and corneal resistance factor (CRF) preoperatively. Same patients were reassessed using ORA 4 weeks postoperatively following a different standard EOM surgery (recti weakening/strengthening and inferior oblique weakening either (graded recession) according to the surgical indication, and ∆CH and ∆CRF were calculated, each is the preoperative − the postoperative value. Results. ∆CH and ∆CRF = −0.78 ± 1.56 and −0.72 ± 2.15, respectively, and a highly significant difference was found between each of the pre- and postoperative CH and CRF (p |
| Databáze: | Directory of Open Access Journals |
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