PURPOSE: There are several methods to measure the Interpupilary Distance (IPD), but the method used in most office is the milimetric ruler. Currently, the autorrefractor is used routinely to find for the subjective evaluation of the refractive error, but the IPD from the autorrefractor is often not compared with the traditional method of measurement.The objective of the study is to achieve the measures of IPD between the two methods and compare the results with each other. METHODS: One hundred and […]

PURPOSE: This is to study the progressive addition lens (PAL) under the physiological optics’ view, to show the lensometer findings and its applicability to daily work. METHODS: At first, the aa., explains the ways to examine the PAL , and then indicates the physical basis applied to study the prismatic system of the concave and convex lens. It then examines the differences on progression zone extension and explains its diagonal position. Thirteen pairs of lenses from the same manufacturer were […]

OBJECTIVE: Evaluate the visual response of children with developmental dyslexia when ambiguous figure was presented in comparison with normal readers children. METHODS: 39 children from basic school was randomly chosen. 26 were normal readers. 13 were diagnosed developmental dyslexia.Were presented the Boring figure, Rubin vessels figure and Jastrow figure. RESULTS: Participants in the clinical group with dyslexia performed marginally less well than those in the control group. CONCLUSION: The visual response of children with developmental dyslexia when ambiguous figure was […]

PURPOSE: To evaluate intraocular pressure variation due to postural changing of supine to sitting position and, to correlate this variation with visual field defects in primary open angle and normal tension glaucoma patients, as well as normal eyes. METHODS: Thirty-two eyes of 32 POAG patients, 30 eyes of 30 NTG patients and 20 eyes of 20 normal patients were evaluated in the study. Intraocular pressure was measured at 6 o’clock in supine position and 5 minutes after in sitting position […]

INTRODUCTION: Congenital cataract is an important cause of poor visual acuity and amblyopia, with an incidence of 0,4%. Surgical approaches in children present many advances through the years, such as intraocular lenses implantation and others thechniques, wich results in better visual outcomes and prevention of amblyopia. PURPOSE: To report the early outcomes of a series of cases submited to different surgical techiniques for pediatric cataract, in the Tadeu Cvintal Ophthalmology Institute, from January 2004 to January 2005. METHODS: Retrospective study […]

OBJECTIVE: To present a model of assessment of the satisfaction level of the attendants in a short-duration course, considering the financial costs and the acquired knowledge. METHODS: By means of the presentation of questionnaires, a transversal study on a promptly accessible sample of ophthalmologists (n=29) who attended the “II Course on Transfer of Skills on Adaptation to Contact Lenses” at Sirio-Libanês Hospital, was carried out. RESULTS: The sample was formed by 29 individuals, being 58,6% men and 37,9% women (one […]

PURPOSE: To assess comparatively the central corneal thickness (CCT), the central corneal endothelial cells density (CECD) and mean area (CECAA), of patients who underwent trabeculectomy (Trab) with or without mytomicyn C (MMC). METHODS: Prospective study. Twenty-nine eyes were divided in two groups: Trab with or without MMC. Ultrasonic pachymetry and non-contact specular microscopy were performed pre-operatively and three and six months after Trab. The mean value of the CECD and the low value of the CCT were used. RESULTS: In […]

PURPOSE: To explorethe effect of the thalamosinusotomy ab interno, which is an experimental surgical procedure similar to sclerothalamotomy ab interno, on aqueous humor drainage. METHODS: Enucleated porcine eyes were perfused with Krebs-Ringer’s physiologic solution and trypan blue, in vitro, under different constant pressures after the experimental procedure.The outflow facility and the stained/unstained tissue were measured. RESULTS: The outflow facility and the area under the curve (outflow) increased with the increasing number of thalamosinusotomy incisions (0 to 4). Thalamosinusotomy eyes showed […]