اصلاح آستیگماتیسم بالا متعاقب پیوند قرنیه درافراد کراتوکونوسی بروش کراتوتومی قوسی با لیزر فمتوثانیه

هاشمیان, محمد ناصر and اوجاقی, حبیب and محمدپور, مهرداد and جباروند, محمود and رحیمی, فیروزه and ابطحی, محمد علی and مظلومی, مهدی and ابطحی, سید حسین (1395) اصلاح آستیگماتیسم بالا متعاقب پیوند قرنیه درافراد کراتوکونوسی بروش کراتوتومی قوسی با لیزر فمتوثانیه. Journal of Research in Medical Sciences ــ 21 (11). pp. 1-4. شاپا 1735-1995


Official URL: http://jrms.mui.ac.ir


Femtosecond laser arcuate keratotomy for the correction of postkeratoplasty high astigmatism in keratoconus

English Abstract

Background: Astigmatism is the leading complication in visual recovery after penetrating keratoplasty (PKP) and deep anterior lamellar keratoplasty (DALK); in this study, we evaluated the outcome of femtosecond laser arcuate keratotomy (FLAK) after DALK and PKP in Iranian keratoconic patients. Materials and Methods: In this prospective interventional case series, refractive and keratometric predictability, efficacy, and complications of FLAK for postkeratoplasty astigmatism in keratoconus were evaluated; 23 eyes of 23 consecutive patients (mean age of 32.43 ± 9.11 years) with high astigmatism were enrolled. The femtosecond laser performed paired 90°‑angled arcuate incisions. Results: Mean logarithm of the minimum angle of resolution of corrected and uncorrected visual acuity improved from preoperative values of 0.30 ± 0.18 and 0.85 ± 0.32 to 6‑month values of 0.19 ± 0.17 and 0.65 ± 0.33, respectively (P < 0.05). Mean subjective astigmatism was 7.79 ± 2.64 diopter (D) preoperatively and 3.69 ± 2.25D at 6‑month after surgery (P < 0.05). Surgically induced astigmatism was 9.27 ± 5.00D. Mean refractive spherical equivalent showed no significant (P = 0.69) hyperopic shift from − 4.21 ± 4.84D preoperatively to − 2.16 ± 6.09D postoperatively. Two (8.7%) microperforations were observed. Conclusion: FLAK is a relatively safe and effective method for the treatment of postkeratoplasty astigmatism.

Item Type:Article
زبان سند : انگلیسی
نویسنده اول :محمد ناصر هاشمیان
نویسنده مسئول :حبیب اوجاقی
Additional Information:Impact Factor(2015)0.812 Indexed in: ISI, Pubmed, Scopus, Chemical Abstracts, DOAJ, Index Copernicus,
کلیدواژه ها (انگلیسی):Astigmatic keratotomy, deep anterior lamellar keratoplasty, femtosecond laser, keratoconus, keratoplasty, penetrating keratoplasty
Subjects:WW Ophthalmology
Divisions:Faculty of Medicine > Department of Surgery
ID Code:8518
Deposited By: Ms Zeynab Imani
Deposited On:01 Dec 1395 12:46
Last Modified:07 Dec 1395 12:13

Repository Staff Only: item control page

Document Downloads

More statistics for this item...