Contribution of posterior corneal astigmatism to total corneal astigmatism in a simple of Egyptian population / (Record no. 78150)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02731cam a2200349 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223032610.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 201011s2020 ua dh f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.11.24.M.Sc.2020.Al.C |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Alaa Mohamed Badawy Mohamed |
| 245 10 - TITLE STATEMENT | |
| Title | Contribution of posterior corneal astigmatism to total corneal astigmatism in a simple of Egyptian population / |
| Statement of responsibility, etc. | Alaa Mohamed Badawy Mohamed ; Supervised Lubna Khazbak , Mohamed Hosny , Sarah Azzam |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | نسبة اللانقطية للسطع الخلفى للقرنية الى اللانقطية فى عينة من المصريين |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Alaa Mohamed Badawy Mohamed , |
| Date of publication, distribution, etc. | 2020 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 53 P. : |
| Other physical details | charts , facimiles ; |
| Dimensions | 25cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Ophthalmology |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Background: Accurate measurement of total corneal astigmatism is critical in correcting astigmatism following cataract surgery and in accurate calculation of toric Iols .The astigmatism of the anterior and posterior corneal surfaces both contribute to the total corneal astigmatism. Previously, the posterior corneal astigmatism was neglected during measurement of total corneal astigmatism which resulted in errors during calculation and correction of astigmatism. Purpose: To determine the percentage of contribution of the magnitude of posterior corneal astigmatism to total corneal astigmatism using Pentacam (Scheimpflug) imaging . Method: This is a prospective cross sectional study conducted on 356 eyes of 356 patients, where the total corneal astigmatism was calculated by addition of anterior and posterior corneal astigmatism using vector analysis and then the percentage of posterior to total corneal astigmatism was calculated . Results: The percentage of contribution of posterior to total corneal astigmatism was about 30 % in patients 2 With the rule 3astigmatism and about 8% in patients 2Against the rule 3 astigmatism.Conclusion: posterior corneal astigmatism shouldn{u2019}t be neglected during calculation of total corneal astigmatism as neglecting posterior corneal astigmatism can result in errors during calculation and correction of astigmatism |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Oculus pentacam |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Posterior corneal astigmatism |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Vector analysis |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Lubna Khazbak , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Hosny , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Sarah Azzam , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Shimaa |
| Reviser | Cataloger |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.11.24.M.Sc.2020.Al.C | 01010110081717000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.11.24.M.Sc.2020.Al.C | 01020110081717000 | 22.09.2023 | CD - Rom | 81717.CD |