Publications by authors named "Fernanda Alves da Silva Bonatti"
Purpose: To perform a preliminary evaluation at the "Clínica Oftalmológica do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (USP)" of an innovative equipment for low-vision developed at USP containing a reading stand and a magnifier that maintains in a stable position the reading line and focus.
Methods: 9 low-vision patients were evaluated using the above mentioned reading stand and a magnifier developed at USP comparing it with a hand magnifier of similar power taking into account the following evaluation parameters: etiology of low-vision, best corrected visual acuity for distance, patient's opinion comparing both low-vision aid resources, authors' opinion observing the patient using both low-vision aids.
Results: The numerical preference for the low-vision aids was: 5 patients for the reading stand and a magnifier that maintains at a stable position the reading line and focus; 2 patients for the hand magnifier; 1 patient indifferent regarding any of the resources; 1 patient inadequate for the evaluation of the low-vision aids.
Purpose: To develop in an interdisciplinary approach between ophthalmology and design areas an ergonomic +22-diopter 50-mm aspheric hand magnifier for low vision.
Methods: An aluminum cylinder was cut, processed using a lathe and carved to produce a ring that accommodated a 50-mm aspheric lens, with an external depression not to slide from the holder's fingers. A cylindrical steel bar was cut, processed using a lathe and carved in order to form an externally turned ring to be screwed into the internal thread of the aluminum ring, to maintain the lens in a steady position.
Purpose: To develop the design of a near low vision aid that has esthetic and functional qualities intending to give its user a better life quality.
Methods: To verify low vision people's main needs concerning the current devices for near distance; to identify possible design interventions to make a project that fulfills their main needs.
Results: A prototype having a reading stand tied to the end of a magnifier that moves horizontally and vertically permitting the horizontal reading of a text line was developed.