Prognostic indicators and outcome measures for surgical removal of symptomatic nonadvanced cataract.
Arch Ophthalmol
; 129(9): 1155-61, 2011 Sep.
Article
en En
| MEDLINE
| ID: mdl-21555598
ABSTRACT
OBJECTIVES:
To report changes in perceived visual functioning after surgery for symptomatic cataract with preoperative corrected distance visual acuity [CDVA] of 0.4 logMAR or better (Snellen equivalent, 20/50) and to investigate the relationship between any observed changes and preoperative physical characteristics and psychophysical consequences of the lens opacity and any changes in psychophysical findings after the procedure.METHODS:
Eighty-five patients with cataract completed a validated questionnaire concerning functional vision satisfaction and a series of visual performance assessments before and 2 months after cataract surgery. The lens optical density and Lens Opacities Classification System III score of the cataract were recorded. Correlations between changes in the Rasch-analyzed questionnaire score and changes in visual performance after cataract surgery, as well as preoperative psychophysical measures, lens optical density, and Lens Opacities Classification System III score, were determined.RESULTS:
The mean (SD) questionnaire score improved from 2.15 (0.36) to 1.54 (0.41) (P < .001). The preoperative questionnaire score (r = -0.44), preoperative mesopic glare disability [GD] (at 1.5 cycles per degree [cpd] [r = 0.34] and 3.0 cpd [r = 0.27]), and preoperative photopic GD (at 1.5 cpd [r = 0.24] and 3.0 cpd [r = 0.30]) showed statistically significant correlations with perceived improvements in visual functioning after surgery (P < .05). Changes in perceived visual functioning correlated significantly with changes in mesopic GD (at 1.5 cpd [r = -0.43] and 3.0 cpd [r = -0.28]; P < .05) and photopic GD (at 1.5 cpd [r = -0.24] and 3.0 cpd [r = -0.39]; P < .05). Neither preoperative CDVA nor change in CDVA after surgery correlated significantly with perceived improvement in visual functioning after the procedure (P > .05 for both).CONCLUSION:
Psychophysical tests alternative to CDVA better represent improvements in self-reported visual functioning following removal of symptomatic nonadvanced cataract.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Catarata
/
Agudeza Visual
/
Facoemulsificación
/
Seudofaquia
/
Implantación de Lentes Intraoculares
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Idioma:
En
Revista:
Arch Ophthalmol
Año:
2011
Tipo del documento:
Article