Preoperative automatic visual behavioural analysis as a tool for intraocular lens choice in cataract surgery

Purpose: Cataract is the main cause of blindness, affecting 18 million people worldwide, with the highest incidence in the population above 50 years of age. Low visual acuity caused by cataract may have a negative impact on patient quality of life. the current treatment is surgery in order to replac...

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Bibliographic Details
Authors: Nogueira, Heloisa Neumann, Alves, Monica, Schor, Paulo [UNIFESP]
Format: article
Status:Published version
Publication Date:2015
Country:Brasil
Institution:Universidade Federal de São Paulo (UNIFESP)
Repository:Repositório Institucional da UNIFESP
Language:English
OAI Identifier:oai:repositorio.unifesp.br:11600/38804
Online Access:http://dx.doi.org/10.5935/0004-2749.20150025
http://repositorio.unifesp.br/handle/11600/38804
Access Level:Open access
Keyword:Cataract extraction
Cataract/psychology
Lenses, intraocular
Quality of life
Vision, ocular
Visual acuity
Sickness impact profile
Description
Summary:Purpose: Cataract is the main cause of blindness, affecting 18 million people worldwide, with the highest incidence in the population above 50 years of age. Low visual acuity caused by cataract may have a negative impact on patient quality of life. the current treatment is surgery in order to replace the natural lens with an artificial intraocular lens (IOL), which can be mono- or multifocal. However, due to potential side effects, IOLs must be carefully chosen to ensure higher patient satisfaction. Thus, studies on the visual behavior of these patients may be an important tool to determine the best type of IOL implantation. This study proposed an anamnestic add-on for optimizing the choice of IOL.Methods: We used a camera that automatically takes pictures, documenting the patient's visual routine in order to obtain additional information about the frequency of distant, intermediate, and near sights.Results: the results indicated an estimated frequency percentage, suggesting that visual analysis of routine photographic records of a patient with cataract may be useful for understanding behavioural gaze and for choosing visual management strategy after cataract surgery, simultaneously stimulating interest for customized IOL manufacturing according to individual needs.