Fixation pattern in toxoplasmosis chorioretinitis

• Grant number: 10/01714-9
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2010
• End date: September 30, 2012
• Field of knowledge: Health Sciences - Medicine
• Principal Investigator: André Marcio Vieira Messias
• Grantee: André Marcio Vieira Messias
• Host Institution: Faculdade de Medicina de Ribeirão Preto (FMRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
• Associated researchers: Rosália Maria Simões AntunesFoschini

Abstract

Fixation pattern in patients suffering from central vision loss, such as, age related macular degeneration and Stargart disease, has been intensively investigated in the past 100 years. It is well known that its features, like the size of the scotoma and the styablility of the fixation are crucial for the success of visual rehabilitation strategy. Patients with macular chorioretinitis due to toxoplasmosis, i.e. from birth, are an excellent model for investigations on the physiology of eccentric fixation, because of the well-delimitated macular lesion, absence of other causes of visual deficit (i.e. aging), and the fact of the eccentric fixation is developed at young ages. The aim of this study is to determine spatial characteristics of the eccentric fixation, such as fixation locus, distance to the retinal lesion and stability, size of scotomas, and investigate the relationship between these parameters and reading, and visual acuity in patients showing unilateral or bilateral disease. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ANTUNES-FOSCHINI, ROSALIA M. S.; HO, WANLI; MESSIAS, ANDRE. Padrões de fixação excêntrica, achados clínicos e velocidade de leitura em pacientes com retinocoroidite macular bilateral por toxoplasmose. Arquivos Brasileiros de Oftalmologia, v. 81, n. 5, p. 401-407, SEP-OCT 2018. (10/01714-9)

ROBERTO SAAD FILHO; RENATA MORETO; RICARDO OKADA NAKAGHI; WILLIAM HADDAD; ROBERTO PINTO COELHO; ANDRÉ MESSIAS. Custos e resultados facoemulsificação na cirurgia de catarata realizada por médicos residentes. Arquivos Brasileiros de Oftalmologia, v. 83, n. 3, p. 209-214, 2020-05-29. (10/01714-9)

MESSIAS, KATHARINA; JAEGLE, HERBERT; SARAN, RAFAEL; PINTO RUPPERT, ANDRE DOMINGOS; SIQUEIRA, RUBENS; JORGE, RODRIGO; MESSIAS, ANDRE. Psychophysically determined full-field stimulus thresholds (FST) in retinitis pigmentosa: relationships with electroretinography and visual field outcomes. DOCUMENTA OPHTHALMOLOGICA, v. 127, n. 2, p. 123-129, OCT 2013. (10/01714-9)