Biomedical subjects

J R Hueso

Publications and source records attributed to J R Hueso.

3 recordsLinked to original sources

PubMed1999

Induced endothelial cell loss in phacoemulsification using topical anesthesia plus intracameral lidocaine.

PURPOSE: To determine whether lidocaine 1% injected into the anterior chamber during phacoemulsification damaged the corneal endothelium. SETTING: Ophthalmology Service, University Hospital, San Juan de Alicante, Spain. METHODS: In 19 eyes of 19 patients, small incision phacoemulsification and foldable lens (AcrySof MA60BM) implantation was performed using topical anesthesia supplemented by lidocaine 1% (0.3 mL) in the anterior chamber. All cases were operated by the same surgeon. Specular microscopy was performed before surgery and 1 and 3 months postoperatively. RESULTS: Mean endothelial cell loss was 5.41% +/- 8.50 (SD) at 1 month and 5.93 +/- 8.50% at 3 months. CONCLUSIONS: The endothelial damage was similar to that described by other authors, suggesting that phacoemulsification surgery can be performed successfully using topical anesthesia supplemented by lidocaine 1% in the anterior chamber.

Aged↗

PubMed1998

Metallic fragment deposits during phacoemulsification.

PURPOSE: To describe the nature and origin of foreign metallic intraocular bodies appearing after phacoemulsification. SETTING: Department of Ophthalmology, University Hospital of San Juan, Alicante, Spain. METHODS: Two metallic particles, 1 extracted during surgery and the other from a patient in whom surgery had been performed, were studied by scanning electronic microscopy and X-ray dispersive energy spectroscopy. Also evaluated were all metallic elements used in phacoemulsification including phaco tips, Sinskey hooks, and handpieces. A morphologic analysis at various magnifications was performed and the composition of the elements studied. RESULTS: Scanning electronic microscopy showed irregularities of the phaco tip and Sinskey hook after their use. Spectrographic analysis found that the phaco tip was mainly aluminum and titanium; the Sinskey hook, iron, chromium, cobalt, and nickel; the handpiece, iron, chromium, and nickel; and the 2 metallic particles, iron, chromium, and nickel, the same as the handpiece. CONCLUSION: The metallic particles extracted corresponded to those of the phaco handpiece. Vibration during prolonged use of the phacoemulsifier probably caused these particles to chip off the handpiece.

Alloys↗

PubMed1995

Long-term results of surgical treatment of high myopia with Worst-Fechner intraocular lenses.

This retrospective study evaluated the results in 90 eyes that had a minuspower anterior chamber intraocular lens implanted to correct high myopia. Preoperative myopia ranged from -7.00 to -24.00 D. Postoperative spherical equivalent was -0.50 D; 80.5% of eyes were within 1.00 D of emmetropia. Two years postoperatively, no cataract formation, retinal detachment, glaucoma, or significant endothelial damage had occurred. We conclude that minus-power lenses can rapidly, safely, and predictably correct high myopia in phakic patients.

Adult↗