Radial keratotomy enhancement by laser in situ keratomileusis

The purpose of this study was to evaluate the predictability, efficacy, and safety of LASIK in the management of both undercorrection and overcorrection following RK. This prospective study included 30 eyes of 18 patients. All patients underwent previous RK surgery to treat myopia and all of them had residual refractive defect after surgery. Patients were divided according to this residual refractive defect into two groups: Group 1 [undercorrection group] included 17 eyes and group 2 [overcorrection group] included 13 eyes. All eyes underwent LASIK to correct the residual defect. The mean interval between RK and LASIK was 26 +/- 9.1 months [range 12-60 months]. All the patients were followed up for at least six months postoperatively. At the end of the 6-month follow-up period, in group 1, 14 eyes [82%] were within the +/- ID zone of intended correction, 13 eyes [76%] had UCVA of more than 0.5, and 16 eyes [94%] showed improvement or no change in BCVA. In group 2, 10 eyes [77%] were within the +/- ID zone of intended correction, 9 eyes [69%] had UCVA of more than 0.5 and 12 eyes [93%] showed improvement or no change in BCVA. Laser in situ keratomileusis performed to treat undercorrection and overcorrection after RK was predictable, effective and safe. However, special precautions should be taken pre- and intraoperatively to ensure its safety

Porous polyethylene implant motility without muscle attachment

The clinical objective of this study was to evaluate a simple technique for porous polyethylene spherical implants after enucleation and to review literature to compare this technique with the classic technique. This study included 32 eyes but 7 cases could not be followed postoperatively, so only 25 cases were reported. The patients were not age or gender matched. Patients included in this study were patients coming for enucleation of their blind disfiguring, blind painful eye or blind disfiguring painful eye. No case of intraocular tumors was present in this study. Exclusion criteria were marked ocular motility defect, shallow contracted fornices, ocular infection, severe orbital vascular disorder or severe conjunctival fibrosis and dryness. Patients with lax lower lids underwent lid tightening surgery. All patients were operated under general anesthesia after a written consent was made. Patients were given systemic antibiotics for five days and local antibiotic drops for at least four weeks. Fitting of the prosthesis starts after four weeks. Outcome is assessed subjectively from patient satisfaction and reporting pain, if present. Objectively motility was assessed by reporting implant movement in the four cardinal position of gaze. Motility was described as good [15 degrees or more], fair [less than 15 degrees] or no motility. Follow up ranged from 6 months to 25 months. The average follow up period was 14.8 months. Good motility was achieved in 22 cases and fair motility in 3 cases. No pain was reported in 14 cases, tolerable pain in 9 cases and severe pain in 2 cases. Patients were satisfied in 18 cases, partially satisfied in 6 cases and unsatisfied in one case