Effect of Implantable Contact Lens for High Myopia

PURPOSE: To assess the efficacy, predictability, stability and safety of the implantable contact lens (ICL) to treat high myopia METHODS: We retrospectively analyzed the clinical outcomes in 49 eyes of 28 patients with high myopia undergoing ICL implantation with a minimum follow-up period of 3 months. RESULTS: Mean preoperative spherical equivalent was -13.94 +/- 5.47D (range, -25.50 to -7.25D), and mean postoperative spherical equivalent was -1.59 +/- 1.59D (range, -6.38 to +0.50D). Forty one eyes (83.7%) were within 1.0D, and 29 eyes (59.2%) were within 0.5D of predicted refraction at last exam. Postoperative uncorrected visual acuity at last examination was 0.5 or better in 43 eyes (87.8%) and 1.0 or better in 21 eyes (42.9%). A gain of 1 or more lines of best corrected visual acuity was seen in 19 eyes (38.8%) and a lost 1 or more lines of best corrected visual acuity at last time in 7 eyes (14.3%). The refraction remained stable with a statistically insignificant change (p>0.05) at each interval during follow-up. Glaucoma occurred in 3 eyes (6.1%), and pigment deposited on the ICL in 5 eyes (10.2%). Two ICLs (4.1%) of 1 patients were removed due to glare. CONCLUSIONS: ICL Implantation is predictable, stable, and effective in the correction of high myopia, with good short-term safety.

Comparision of Ocular pain Between Topical and Retrobulbar Anesthesia for Cataract Surgery

We analysed a perceiving pain at each step (8 step: traction suture, wound incision, anterior capsulotomy, phacoemulsification, irrigation and aspiration, intraocular lens (IOL) implantation, wound suture, subtenon's injection) of cataract surgery by using visual analogue scale (0-10), prospectively. One hundred cases of cataract surgery were performed from November 1995 to March 1996 at Chonnam national university hospital and topical or retrobulbar anesthesia prior to cataract surgery was applied to each 50 patients. There was no difference of age, sex, running time for surgery, and incision method between topical and retrobulbar anesthesia. Pain scores at phacoemulsi fication. irrigation and aspiration, and subtenon's injection were higher than those at other steps in both types of anesthesia. However, a major range of pain scores at each step except of subtenon's injection was mild (1-3). In topical anesthesia, pain score was higher than retrobulbar anesthesia, but there was no statistically significant difference except a step of subtenon's injection. In conclusion, topical anesthesia might be an adequate anesthetic method for cataract surgery.