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Publications (3)1.96 Total impact

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    ABSTRACT: To present a checklist for the evaluation of low vision in uncooperative patients; in this specific case, children with neurological deficits. The checklist includes several behavioral indicators obtainable with a standard clinical examination. Each test is assigned a score (0=failure, 1=success). The final visual quotient score is obtained by dividing the partial score by the total number of tests performed. Eleven children with cerebral visual impairment were studied using behavioral and preferential looking techniques. Visual quotient was >0 in all patients, indicating that residual visual function was always detectable. Average visual quotient was 0.74. Visual quotient can be useful both for follow-up examinations and comparison and integration with other evaluation methods (behavioral and instrumental) of residual visual capacity. In particular, if combined with preferential looking techniques, visual quotient testing permits characterization of the entire spectrum of low vision.
    Journal of Pediatric Ophthalmology & Strabismus 01/2001; 38(2):90-4. · 0.73 Impact Factor
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    ABSTRACT: Bardet-Biedl syndrome (BBS) is a hereditary autosomal-recessive disorder, characterized by mental retardation, obesity, pigmentary retinopathy, polydactyly and, only in males, hypogenitalism. Even though genetic studies have revealed five different forms of BBS correlated to distinct loci on different chromosomes, a diagnosis of BBS is still primarily based on clinical data. The present study discusses the evolution of clinical ophthalmological and electrophysiological characteristics of BBS patients in developmental age. The main results obtained on a sample of 13 pediatric patients are the following: * progressive loss of visual acuity arised early in the first decade of life * ophthalmoscopic signs of pigmentary retinopathy were present only in 46% of the children studied * striking anomalies in the electroretinogram were also detected in the cases without pigmentary retinopathy * the electroretinographic results, when detectable, suggested a greater involvement of the photopic system as against the scotopic system.
    International Ophthalmology 02/1999; 23(2):61-7.
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    ABSTRACT: Albinism represents the most frequent cause of nystagmus induced by visual sensory disorders. We studied five patients aged between three and five years with ocular albinism with the aim of identifying the characteristics of nystagmic oscillations. The patients underwent complete ophthalmological examination and electronystagmography (ENG). ENG revealed either pendular or jerk waveforms (or both) with the same complex effects of fixation seen in those with idiopathic congenital nystagmus. Three children presented face turn due to reduced severity of nystagmus in lateroversion. Latent nystagmus was not observed.
    Ophthalmic Genetics 01/1998; 18(4):209-15. · 1.23 Impact Factor