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-Abstract
Purpose: To compare efficacy, safety and stability of Femtosecond assisted LASIK and
implantable collamer lens implantation in correction of high myopia. Methods: This study was nonrandomized comparative prospective consecutive interventional study. It included 74 eyes with
high myopia (≥ -6 Ds) of 40 patients attended to the outpatient ophthalmic clinic of Sohag
university hospitals from the period from Jan.2016 to Jan.2017. The patients were divided into
two groups depending on: Degree of myopia, corneal thickness and corneal tomography. The
first group (34 eyes) of 20 patients were subjected to implantable collamer lenses
implantation and the second group (40 eyes) of 40 patients were subjected to femtosecond
assisted LASIK. Results: Group one (ICL group) showed UCVA preoperative was (1.90±0.29)
and UCVA postoperative was (0.27±0.21) with (p-value<0.000*). BCVA preoperative was
(0.526±0.272) and that of BCVA postoperative was (0.217±0.128) with (p-value<0.001*), which
means that BCVA postoperative was better than what was expected from the BCVA preoperative. Spherical error decreased from (-13.576±3.945) preoperative to (-0.0385±0.821) postoperative with (p-value<0.000*).Cylindrical error preoperative was (-1.134±0.617) and postoperative was (-0.352±0.250) with (p-value<0.000*).Spherical equivalent preoperative was (-15.173±
4.079) and that of postoperative was (-0.269±0.787) with (p-value<0.000*). Pachymetry preoperative was (518.153±22.981) and postoperative was (521± 22.304) with (p-value <0.140).
Group two (Femtosecond assisted LASIK) UCVA preoperative was (1.42±0.27) and UCVA
postoperative was (0.366±0.21) with (p-value<0.000*).There wasnít significant difference between
BCVA preoperative and postoperative. Spherical error preoperative was (-8.398±1.733) and postoperative (-0.796±1.186) with (p-value<0.000*). Cylinder error mean value preoperative was (-
1.648±0.838) corrected to (-0.765±0.423) with (p-value< 0.005). Spherical equivalent preoperative was (-9.213±1.899) and that of postoperative is (-0.935±1.11) with (p-value<0.000*).
Pachymetry preoperative was (535.111±26.33) and postoperative (419.88± 43.063) with (pvalue<0.000*). Conclusion: Both implantable collamer lens and Femtosecond assisted
LASIK proved high efficacy and safety but implantable collamer lens showed more stability for
high myopic patients.
DOI
10.21608/ejco.2019.162996
Keywords
High myopia, Femtosecond, Excimer laser, implantable collamer lens, Efficacy, safety, stability
Authors
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Ophthalmology dept.., Faculty of Medicine, Sohag Univ., Sohag, Egypt
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-MiddleName
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Ophthalmology dept.., Faculty of Medicine, Sohag Univ., Sohag, Egypt
Email
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-Orcid
-MiddleName
-Affiliation
Ophthalmology dept.., Faculty of Medicine, Sohag Univ., Sohag, Egypt
Email
-City
-Orcid
-MiddleName
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Ophthalmology dept.., Faculty of Medicine, Sohag Univ., Sohag, Egypt
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https://ejco.journals.ekb.eg/article_162996.html
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https://ejco.journals.ekb.eg/service?article_code=162996
Type
Original articles: include clinical trials, interventional research, Basic researches and clinically relevant laboratory investigations
Publication Title
Egyptian Journal of Clinical Ophthalmology
Publication Link
https://ejco.journals.ekb.eg/
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