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Biomedical subjects

Gustavo Victor

Publications and source records attributed to Gustavo Victor.

4 recordsLinked to original sources

[MALKS: specifications and development].

PURPOSE: To describe the characteristics of a new artificial anterior chamber (MALKS, Loktal, São Paulo, Brazil). METHODS: Characteristics analysis and description of a new artificial anterior chamber MALKS (Micro automated lamellar keratoplasty system). RESULTS: MALKS is composed of eight parts: a) artificial chamber; b) cornea's fix ring; c) nut to join the cornea's fix ring; d) rail and adjuster of lamellar diameter; e) flatteners, to pre-determine lamellar diameter; f) infusion system, that allows the digital objective peroperative control of the intracameral pressure; g) automated microkeratome, and h) marker. CONCLUSION: MALKS uses the same automated microkeratome developed for LASIK, can allow corneal lamella obtention with predetermined thickness and diameter, as well as the digital objective peroperative control of the intracameral pressure. This new artificial anterior chamber can be an important tool for superficial and endothelial keratoplasty.

Anterior Chamber↗

[Evaluation of the cut quality of the Masyk microkeratome in obtaining corneal flap from porcine eyes].

PURPOSE: Evaluation of the cut quality of the Masyk microkeratome in obtaining corneal flap from porcine eyes. METHODS: Prospective study with 31 porcine eyes divided into two groups: 15 eyes with programmed flap thickness of 160 microm and 9.5 mm diameter (Group 1), and 16 eyes with programmed flap thickness of 140 microm and 8.5 mm diameter (Group 2). Corneal thickness was calculated with a P55 pachymeter (Paradigm, USA) and the diameter with compass. RESULTS: No complications were observed during the use of the microkeratome. In group 1, the central corneal thickness mean was 146.33 +/- 15.43 microm, range between 127 and 186 microm, and the vertical diameter mean was 9.39 +/- 0.26 mm, range from 8.90 to 9.85 mm. In group 2, the central corneal thickness mean was 128.75 +/- 18.83 microm, range from 71 to 178 microm, and the vertical diameter mean was 8.27 +/- 0.20 mm, range from 7.95 to 8.65 mm. CONCLUSION: The Masyk microkeratome showed to be effective and safe to produce corneal flaps with appropriate thickness and diameter in porcine eyes.

Animals↗

[In vivo confocal microscopy in the diagnosis of fungal keratitis: case report].

The authors describe a case of fungal keratitis that the in vivo confocal microscopy helped in the diagnosis and follow-up. Confocal microscopy was done in a patient's ulcer that did not improve with several topical medicines. Corneal scrapings were obtained and culture results were without conclusion. We observed hyphae and infectious collections on confocal microscopy. New corneal culture showed Fusarium sp ten days after confocal diagnosis.

Eye Infections, Fungal↗

[Evaluation of the cut quality of Masyk microkeratome in obtaining corneal flap from human eyes of an eye bank].

PURPOSE: To evaluate the cut quality of Masyk microkeratome in obtaining a corneal flap from human eyes of Eye Banks. METHODS: Prospective study with 20 human eyes from Eye Banks. All flaps were programmed to obtain 160 microm thickness and 9.5 mm diameter. The thicknesses were calculated with P55 pachymeter (Paradigm, USA), and diameter with compass. RESULTS: No complications were observed during the use of the microkeratome. The central corneal thickness average was 160.34+/-5.10 microm and range from 149 to 181 microm. The vertical diameter average was 9.64+/-0.16 mm and range from 9.30 to 9.85 mm. CONCLUSION: Masyk microkeratome showed to be effective for obtention of corneal flap with appropriate thickness and diameter from human corneas of Eye Banks.

Corneal Stroma↗