OBJECTIVE: Evaluate accuracy and reproducibility of streak retinoscopy without neutralising lenses in experimental hyperopia of an artificial eye. METHODS: Observe a Welsh Allynretinoscope streak through the pupil of an artificial eye prepared do show hyperopia from +1,00 D to +8,00 D. The streak was moved while varying its width by sliding the sleeve upwards until neutralisation point. The retinoscope was fitted either with a millimetre scale under the sleeve or with a multimetre connected to a rheostat driven by a […]

PURPOSE: The methodology currently used for interpretation of the cornea and anterior segment tomography for the diagnosis of corneal ectasia and its susceptibility. METHODS: Description of the methodology and clinical interpretation of corneal and anterior segment tomography indexes; report of three cases demonstrating the importance of this new diagnostic tool (Pentacam HR®) in ophthalmological practice. CONCLUSION: The use of corneal and anterior segment tomography seems to be an effective method to increase the sensitivity and specificity for the diagnosis and […]

PURPOSE: To evaluate the inflammatory response in the choroid, retina and vitreous in rabbit eyes underwent cryotherapy followed by intravitreal triamcinolone acetonide and to compare with those underwent cryotherapy followed by intravitreal injection of saline solution. METHODS: This is a prospective case-control study. Surgical procedures were performed in eleven rabbits. Two animals were excluded because they did not complete the postoperative period or had intraoperative or postoperative complications. All rabbits underwent superior temporal peritomy and transscleralcryotherapy in both eyes. After […]

OBJETIVO: Avaliar a resposta inflamatória em coróide, retina e vítreo nos olhos de coelhos submetidos à crioterapia seguida de injeção intravítrea de triancinolona acetonida e comparar com os olhos de coelhos que foram submetidos à crioterapia seguida de injeção intravítrea de solução salina. MÉTODOS: Trata-se de um estudo prospectivo caso-controle. Foram realizados procedimentos cirúrgicos em 11 coelhos albinos, sendo excluídos os animais que não completaram o pós-operatório ou apresentaram complicações intra ou pós-operatórias. Todos os coelhos foram submetidos à peritomia […]

PURPOSE: To evaluate the contact lenses fitting with respect to visual improvement in patients with keratoconus. METHODS: We conducted a prospective study of 54 patients (99 eyes) attending the Contact Lens Clinic of Faculdade de Medicina do ABC (FMABC) from january 2010 to november 2010. Data were collected on gender, age, treated eyes, degree of keratoconus, initial visual acuity (VA) and final VA after fitting. RESULTS: Of the patients, 44% were women and 56% men. Forty-six point forty-seven percent of […]

PURPOSE: To evaluate biomechanical changes measured with the ORA (Ocular Response Analyzer®; Reichert Ophthalmic Instruments, Buffalo, New York, USA) after Lasik with the Moria One Use Plus and to compare the biomechanics changes after myopic and hyperopic ablations. METHODS: Fourteeneyes for hyperopia (H) and 19 eyes for myopia (M) were evaluated with the ORA preoperatively and 1 month after Lasik with thin flap (100 microns) using SBK-OUP (Sub-Bowman Keratomileusis – One Use Plus, Moria®).CH (Corneal Hysteresis), CRF (Corneal Resistance Factor), […]

Despite being rare, ocular injury due to a compact disc burst can be responsible for severe ocular damage. We present in this article a case of corneal perforation in addition to lens trauma caused by intentional compact disc break. A 44 year old female physician was examined complaining of visual acuity decrease, light sensitivity, tearing and foreign body sensation on OD after watching a compact disc being broken intentionally. In the first examination, she had a corneal perforation with aqueous […]

The detachment of Descemet’s membrane can be a serious complication following cataract surgery, leading to severe corneal edema and reduced visual acuity. This report describes an unusual case of Descemet’s membrane detachment 6 months after successful phacoemulsification, documented by anterior segment optic coherence tomography (OCT; RTVue, Optovue). The eye was treated successfully with pneumatic descemetopexy and transcorneal suturing, with reattachment of Descemet’s membrane. This report should alert physicians that delayed corneal edema can be related to late-onset Descemet’s membrane detachment, […]