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VISUAL ACUITY OUTCOMES FOLLOWING CATARACT EXTRACTION
IN ADULT LATINOS: THE LOS ANGELES LATINO EYE STUDY
by
Kashif Mazhar
_____________________________________________________________
A Thesis Presented to the
FACULTY OF GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
MASTER OF SCIENCE
(APPLIED BIOTSTATISTICS AND EPIDEMIOLOGY)
August 2007
Copyright 2007 Kashif Mazhar
Object Description
| Title | Visual acuity outcomes following cataract extraction |
| Author | Mazhar, Kashif |
| Author email | mazhar@usc.edu |
| Degree | Master of Science |
| Document type | Thesis |
| Degree program | Applied Biostatistics & Epidemiology |
| School | Keck School of Medicine |
| Date defended/completed | 2007-06-28 |
| Date submitted | 2007 |
| Restricted until | Unrestricted |
| Date published | 2007-08-01 |
| Advisor (committee chair) | Azen, Stanley P. |
| Advisor (committee member) |
McKean-Cowdin, Roberta Varma, Rohit |
| Abstract | Purpose: To determine prevalence, primary causes, and risk indicators of visual impairment (VI) in cataract-operated eyes. -- Methods: Participants with cataract extraction underwent an in-home interview and a comprehensive ophthalmologic examination. VI in the cataract-operated eye was defined by: presenting visual acuity (PVA)<20/40 or best corrected visual acuity (BCVA)<20/40. The association of cataract extraction status (aphakic, pseudophakic) and severity of VI was evaluated. Risk indicators associated with VI by BCVA in the worse seeing cataract-operated eye were evaluated. -- Results: The prevalence of VI was 32.2% defined by BCVA vs. 48.1% defined by PVA in all cataract-operated eyes. Uncorrected refractive error, age-related macular degeneration and diabetic retinopathy were the major primary causes of VI. History of glaucoma, barriers to eye care, and unmarried participants were independent risk indicators associated with VI (p<0.05). -- Conclusions: Despite cataract surgery, a significant proportion of participants had residual visual impairment demonstrating the need for regular ophthalmologic exams in cataract-operated patients. |
| Keyword | cataract; visual impairment |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Type | texts |
| Legacy record ID | usctheses-m731 |
| Rights | Mazhar, Kashif |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Mazhar-20070801 |
| Archival file | uscthesesreloadpub_Volume32/etd-Mazhar-20070801.pdf |
Description
| Title | Page 1 |
| Full text | VISUAL ACUITY OUTCOMES FOLLOWING CATARACT EXTRACTION IN ADULT LATINOS: THE LOS ANGELES LATINO EYE STUDY by Kashif Mazhar _____________________________________________________________ A Thesis Presented to the FACULTY OF GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE (APPLIED BIOTSTATISTICS AND EPIDEMIOLOGY) August 2007 Copyright 2007 Kashif Mazhar |
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