Objective intraocular scattering evaluation in cataract patients
Visualitza/Obre
Tipus de documentProjecte Final de Màster Oficial
Data2009-09-09
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Everyday ophthalmologists visit several patients with cataracts, which must
be analyzed and properly classified. Procedures commonly used nowadays for this
purpose are the visual acuity assessment and the cataract gradation by means of direct
observation of the crystalline lens through a slit lamp. These methods are subjective
since the first requires the active participation of the patient and the gradation achieved by the second one totally depends on the physician and his o her expertise. In this study, a new objective approach to assess cataracts based on double-pass measurements is
presented. The method uses a new parameter called Optical Scatter Index (OSI),
extracted from the retinal image, which accounts for the intraocular scattering present in
the eye. In this study we analyzed 59 patients: 20 of them without cataracts (control
group) and 39 with cataracts of different degree and type. The values obtained with the
new technique are compared with those achieved with the more conventional subjective procedures. The results of the study show that OSI is a powerful tool to evaluate cataracts with a good criterion.
Descripció
Projecte realitzat en col.laboració amb CD6, IMO i Mutua de Terrassa
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
MasterThesisProject.pdf | 540,5Kb | Visualitza/Obre |