THE RELATIONSHIP BETWEEN SATISFACTION WITH VISION AND SPECTACLE INDEPENDENCE
Author(s)
Curtis Waycaster, PhD, Senior Outcomes ResearcherAlcon Laboratories Inc, Fort Worth, TX, USA
OBJECTIVES The objective of this study was to determine the relationship between satisfaction with vision and spectacle independence in cataract patients bilaterally implanted with a presbyopia correcting intraocular lens (IOL). METHODS This study was based on a prospective multi-center US clinical trial of cataract patients bilaterally implanted with the presbyopia correcting AcrySof ReSTOR Aspheric +3.0 diopter add power lens (model SN6AD1 Alcon Labs Fort Worth, Texas). Spectacle independence and satisfaction with vision data were collected using the Cataract TyPE questionnaire (TyPE). The TyPE is a reliable, valid questionnaire designed to assess cataract patient functional status and quality-of-life. The TyPE was administered preoperatively and 6 months after the second eye surgery. Spectacle independence was assessed using a 3 point scale with 1 anchored at always wear glasses and 3 anchored at never wear glasses. Spectacle independence is defined as never wearing glasses. Satisfaction with vision was assessed using a 5 point scale with 0 anchored at not at all satisfied and 4 anchored at completely satisfied. The relationship between the spectacle independence and satisfaction with vision was assessed using Spearman's Rho statistic and a simple linear regression. RESULTS One hundred and thirty eight SN6AD1 recipients completed the TyPE both preoperatively and 6 months after second eye implantation. Preoperatively, only 2% of the patients indicated spectacle independence compared to 78% postoperatively. Satisfaction with vision improved from 0.5 at baseline to 3.3 postoperatively. There was a significant (p <0.0001) correlation between spectacle independence and satisfaction with vision (Spearman's Rho = 0.48). The relationship between the spectacle independence and satisfaction can be expressed using the following linear equation: Satisfaction change = 1.38 + 1.01* Spectacle Independence change. R-squared for the linear model was calculated at 0.29. CONCLUSIONS According to this research, the less cataract patients relied on their glasses, the greater their satisfaction with their vision.
Conference/Value in Health Info
2009-05, ISPOR 2009, Orlando, FL, USA
Value in Health, Vol. 12, No. 3 (May 2009)
Code
PSS20
Topic
Patient-Centered Research
Topic Subcategory
Stated Preference & Patient Satisfaction
Disease
Sensory System Disorders