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Biomedical subjects

Henar Heras

Publications and source records attributed to Henar Heras.

4 recordsLinked to original sources
PubMed2007

Intraocular lens opacification after nonpenetrating glaucoma surgery with mitomycin-C.

A 58-year-old woman had successful phacoemulsification with intraocular lens (IOL) implantation in January 2001. Two years later, nonpenetrating glaucoma surgery with mitomycin-C (MMC) 0.02% was performed for uncontrolled glaucoma. Two months later, opacification of the anterior IOL surface was observed. The IOL was removed and a hydrophobic acrylic AcrySof IOL (Alcon) implanted. The opacified IOL was studied by flame atomic absorption spectrometry, which showed the presence of calcium carbonate. A new IOL of the same model was placed in an aqueous solution with calcium carbonate and basic pH, and the same opacification developed. We hypothesize that the change in aqueous humor pH after glaucoma surgery and the characteristics of the IOL precipitated deposition of calcium.

Antibiotics, Antineoplastic↗
PubMed2005

Surgical treatment of a dislocated intraocular lens-capsular bag-capsular tension ring complex.

We describe a surgical technique for managing late dislocation of an intraocular lens-capsular bag-capsular tension ring (IOL-CB-CTR) complex. Two 10-0 polypropylene sutures are placed transsclerally over and under the CTR through the anterior and posterior capsules to capture the CTR, which then is retracted and sutured through the sclera. The same maneuver is performed 180 degrees away. This simple, easy, effective procedure can be performed with a small corneal incision and does not require extraction of the IOL-CB complex. Although the CTR does not completely prevent IOL-CB dislocation, it provides the possibility of suturing the IOL-CB to the sulcus without replacing the IOL.

Aged↗
PubMed2004

Extraction of endocapsular tension ring after phacoemulsification in eyes with pseudoexfoliation.

PURPOSE: To describe an easy and effective surgical technique for removing the endocapsular tension ring (CTR) after phacoemulsification. DESIGN: New surgical technique. METHODS: One 10-0 polypropylene suture needle is passed through the hole at one end of the CTR. Then, the CTR is introduced into the capsular bag before phacoemulsification. If the posterior capsule ruptures, the CTR can be removed by pulling the suture toward the corneal incision and rotating the CTR to remove it. RESULTS: We performed this technique in 23 cases with a risk of zonular damage and did not encounter complications at any point in the procedure. CONCLUSIONS: We recommend this procedure in eyes with risk of zonular dialysis and posterior capsule rupture, especially in advanced pseudoexfoliative cataracts or if the surgeon has limited experience with these cases.

Device Removal↗