Calculation of the Real Corneal Refractive Power after Photorefractive Keratectomy Using Pentacam, When Only the Preoperative Refractive Error is Known
المؤلفون المشاركون
Borrelli, Maria
De Bernardo, Maddalena
Imparato, Roberto
Rosa, Nicola
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-5، 5ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-04-01
دولة النشر
مصر
عدد الصفحات
5
التخصصات الرئيسية
الملخص EN
Purpose.
To check if a regression formula, IOLMaster-derived, to calculate the real corneal power after photorefractive keratectomy (PRK), can give reliable results utilizing the Pentacam.
Methods.
Pre- and postoperative IOLMaster, Km, and Pentacam K readings were measured.
Patients who had myopic PRK were divided into two groups: the first group (108 eyes) was utilized to check which of the preop Pentacam K readings (P-Kpre) better fitted with the preop IOLMaster measurements; in the second group (120 eyes), the real K (Kr), obtained adding the effective treatment to the P-Kpre, were compared with the K readings calculated with the IOLMaster-derived formula (Kc).
Moreover, an attempt to find a different formula utilizing the P-Kpre was made.
Results.
In group 1, the best correlation was found between IOLMaster Km and Pentacam equivalent K readings (r2 0.9519).
In group 2, the comparison between Kr and Pentacam postop Km showed 69 eyes (57%) with differences >0.5 D and 38 eyes (31%) with differences >1 D, (P<0.001).
The comparison between Kr and Kc showed 55 eyes (45%) with differences >0.5 D and 22 eyes (18%) with differences >1 D, (P<0.001).
Moreover, a regression formula K = EKR − [ETcp + (0.8114 ∗ ETcp − 0.2031)] was obtained in order to calculate the K readings to be used with the Pentacam in the IOL power calculation in case the effective treatment is known.
Conclusions.
K calculated with the new formula could be used in patients that underwent refractive corneal surgery in case a Pentacam device is used, pending further studies conducted in clinical practice to establish its accuracy and effectiveness.
This study further proves that data obtained from different machines cannot be used interchangeably.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
De Bernardo, Maddalena& Borrelli, Maria& Imparato, Roberto& Rosa, Nicola. 2020. Calculation of the Real Corneal Refractive Power after Photorefractive Keratectomy Using Pentacam, When Only the Preoperative Refractive Error is Known. Journal of Ophthalmology،Vol. 2020, no. 2020, pp.1-5.
https://search.emarefa.net/detail/BIM-1189313
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
De Bernardo, Maddalena…[et al.]. Calculation of the Real Corneal Refractive Power after Photorefractive Keratectomy Using Pentacam, When Only the Preoperative Refractive Error is Known. Journal of Ophthalmology No. 2020 (2020), pp.1-5.
https://search.emarefa.net/detail/BIM-1189313
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
De Bernardo, Maddalena& Borrelli, Maria& Imparato, Roberto& Rosa, Nicola. Calculation of the Real Corneal Refractive Power after Photorefractive Keratectomy Using Pentacam, When Only the Preoperative Refractive Error is Known. Journal of Ophthalmology. 2020. Vol. 2020, no. 2020, pp.1-5.
https://search.emarefa.net/detail/BIM-1189313
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1189313
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر