Cosmetic intraocular iris implants for the purpose of changing iris color have recently been developed; however, little is known about their safety. We report a patient who had bilateral implantation of colored silicone iris implants solely for cosmetic reasons. The rapid development of uveitis, corneal decompensation, and ocular hypertension resulted in the need for explantation of the implants. Placement of these devices should require specific medical indications and meticulous surgery with early and long-term evaluation.
We report 2 cases in which an Artisan phakic intraocular lens (IOL) (Ophtec) was used to successfully treat high myopia after penetrating keratoplasty (PKP). The first case was a 43-year-old man who had a manifest refraction of -13.75 +3.00 x 50 with a best corrected visual acuity (BCVA) of 20/40(-2) after PKP in the left eye. Approximately 9 months after implantation of the Artisan IOL, the manifest refraction was -2.00 +2.50 x 60 with a BCVA of 20/30(+2). The second case was a 31-year-old man who had a manifest refraction of -10.75 +2.25 x 122 and a BCVA of 20/40 after corneal transplantation in the right eye. Ten months after implantation of the Artisan IOL, the manifest refraction was -2.75 +4.75 x 80 with a BCVA of 20/40. Endothelial cell density did not change significantly in either patient after surgery. The Artisan phakic IOL may provide an alternative method to correct high myopia after PKP.
Rabbits infected with CJLAT developed corneal scarring and neovascularization similar to that of clinical ocular HSV-1 recurrent disease. Because this occurred well after the acute infection had resolved, the corneal scarring and neovascularization appeared to be recurrent disease. Thus, CJLAT ocular infection of rabbits may provide a good and reproducible animal model to study factors involved in corneal scarring and neovascularization from recurrent ocular HSV-1.
We report the development of bilateral Salzmann's-like corneal lesions located at the site of laser in situ keratomileusis (LASIK) flap margins in 2 patients. These lesions resulted in ocular surface irritation as well as induction of irregular astigmatism and associated loss of best corrected visual acuity. Both patients had bilateral LASIK before the occurrence of the corneal lesions. A biopsy was performed on 1 nodule. The epithelium overlying this raised bluish-white corneal lesion appeared irregular in thickness, with replacement of Bowman's layer by periodic acid-Schiff positive thickened basement membrane-like material. Underlying this basement membrane was a layer of relatively regular, hypocellular, collagenlike connective tissue, which demonstrated hyalinization on trichrome staining. Based on these 2 cases, it seems possible that the hyposecretion of tears, decreased blink rate, and Dellen effect that often occur following LASIK could produce the corneal irritation needed to induce Salzmann's nodular degeneration.
Short-term results indicate efficacy and safety of LASIK on eyes with posterior polymorphous dystrophy. Further study is needed to assess long-term outcomes in a larger study population.
To develop a laboratory model to study intracorneal keratoprosthesis implantation. Methods: A combination microkeratome and artificial anterior chamber system was used to create a hinged lamellar keratectomy on 13 human corneas. After reflecting the flap, the posterior stroma was trephined at either 2.5 or 3.0 mm. A model keratoprosthesis was positioned in the bed. The flap was sutured closed. Intrachamber pressure was increased, and wound leak pressure was recorded. The anterior corneal lamella was trephined at either 3.0 or 3.5 mm to expose the keratoprosthesis. Leak pressure was again determined. Results: After keratoprosthesis placement and prior to anterior trephination, all 13 corneas were watertight at maximum attainable intrachamber pressures. With posterior/anterior trephination combinations of 2.5/3.0 mm, 2.5/3.5 mm, or 3.0/3.5 mm, mean ± SD wound leak pressure occurred at 95±12 mm Hg, 32±7 mm Hg, or 59±12 mm Hg, respectively (PϽ.01).
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