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Purpose: To evaluate the influence of 2% ibopamine eye drops on the results of computerized visual field exams., Methods: Normal volunteers from CEROF-UFG were selected, with no variance in the ophthalmologic examination that could affect the visual field test. The volunteers underwent computerized visual field test before and after dilation with 2% ibopamine eye drop or cyclopentolate, with a minimum interval of three days between them and in a random order. Global indices and number of altered points were compared between the groups., Results: Thirty eyes of 30 normal individuals were selected. There was no statistically significant difference on Mean Deviation (MD) before and after dilation with ibopamine (MD: -1.05 +/- 0.26 dB vs. -1.47 +/- 0.20 dB, P=0.08). However, after cycloplegia (MD: -3.19 +/- 0.29 dB), there was a significant difference on MD (P<0.001 for both ibopamine and pre-dilation). No significant difference was detected in the Pattern Standard Deviation when comparing ibopamine with pre-dilation and cycloplegia values, but it was statistically significant comparing pre-dilation to cycloplegia (P=0.04). The number of altered points in the Pattern Deviation graphic were not significant comparing all pairs. There was a statistically significant difference in the number of altered points in the total deviation graphic before dilation and after cycloplegia (n: 8.86 +/- 1.51 vs. 25.72 +/- 2.96 points, P<0.001), and comparing cycloplegia with ibopamine (ibopamine: 9.75 +/- 1.85 points, P<0.001)., Conclusion: Ibopamine 2% eye drops seem to not modify the results of visual field tests in normal individuals.

Non-penetrating deep sclerectomy has been an alternative to trabeculectomy, because it has the advantage of reducing intraocular pressure (IOP), without penetrating the anterior chamber. Thus, it avoids a sudden decompression and a plain anterior chamber. In this paper, we described a case of a female patient, 53 years old, black, with diagnosis of open-angle primary glaucoma, with unsatisfactory clinical control and who was submitted to non-penetrating deep sclerectomy. The patient developed goniosynechiae at the site of the sclerectomy, after inappropriate use of mydriatic eye-drops during the postoperative period, leading to an increase of IOP and, therefore, failure of the surgery. The use of mydriatic eye-drops during the postoperative period of deep sclerectomy is not indicated, because in this case, it led to surgery failure.

Purpose: To compare the cardiovascular and mydriatic effects of 2.5% and 10.0% phenylephrine., Methods: A case-control, randomized, crossover clinical trial study. We monitored heart rate (HR), blood pressure (BP) and mydriasis in healthy volunteers aged 18-45 years after the instillation of 2.5% and 10.0% phenylephrine in two different occasions., Results: The sample comprised 28 healthy volunteers, 17 male and 11 female, with a mean age of 26.5 years. No changes in heart rate and systolic blood pressure were observed. No significant variation of the mean diastolic blood pressure was found after 1, 5, 10 and 30- minute instillation of 2.5% phenylephrine. However, with 10.0% phenylephrine, there was an increase in mean diastolic blood pressure after five and ten minutes, followed by a drop after 30 minutes, which was not statistically significant. Mydriasis was more marked in both eyes with a statistically significant difference after instillation of 10.0% phenylephrine., Conclusions: The mydriatic effect was greater with 10.0% phenylephrine than with 2.5% phenylephrine and the difference was statistically significant. No statistically significant difference was found in relation to cardiovascular effects in both phenylephrine concentrations.

Purpose: To evaluate and compare refractive errors obtained through clinical subjective and automatized wavefront refraction analyses in eyes under cycloplegia., Methods: Prospective study of 147 patients, 279 eyes, undergoing preoperative examination for refractive surgery. Clinical subjective refraction was performed first followed by wavefront refraction. Results on astigmatism obtained from refraction were decomposed in power vectors for statistical analyses. Data were first analyzed in one eye and then in both eyes., Results: The mean difference between clinical subjective refraction and automatized wavefront refraction on cycloplegic eyes was of -0.19 SD combined with -0.06 CD in the 15 degrees axis for data in one eye, and -0.17 SD combined with -0.05 CD in the 3 masculine axis for data in both eyes of the same patient., Conclusion: In the present study clinical subjective refraction and automatized wavefront refraction under cycloplegia had similar numerical values.

Purpose: To evaluate the relationship between high-order aberrations and refractive errors, and between high-order aberrations and age., Methods: An analytic retrospective study of patients that underwent aberrometry examination was conducted. All subjects examined with LadarWave aberrometer at the Hospital de Olhos do Paraná from April 2004 to April 2005 were included in this study. The major inclusion criterion was 20/20 or better - corrected or not - visual acuity; and the major exclusion criterion, the presence of previous eye surgery or disease. The following variables were analyzed: age, refraction, spherical equivalent, and high-order aberrations wich were: coma, spherical aberration, others, and high-order root mean square (RMS). All data were obtained by LadarWave aberrometry examination, under cycloplegia, utilizing only 6.5 mm pupil results. High-order aberrations up to eight order Zernike's coefficients were evaluated. Patients were divided into 6 groups according to refraction error and into 3 groups according to age., Results: Two hundred and one of 312 eyes were studied. The mean age was 33.9 +/- 10.1, varying from 7 to 62 years of age. Among the refraction error groups hyperopic patients with less than -0.75 D astigmatism (Group 5) showed a higher amount of spherical aberration, and hyperopic patients with more than -0.75 D astigmatism (Group 6) showed a higher amount of other and high-order RMS aberrations. In the general comparison between the age groups, the 45 or older group (Group C) showed a higher amount of all the analyzed aberrations., Conclusion: a) There was a statistically significant positive relationship between hyperopia - with or without astigmatism - and spherical aberration and high-order RMS. b) There was a statistically significant positive relationship between age and all analyzed aberrations.