PubMed HealthSearch

PubMed · 9265358

[Service (computer) program for selecting magnifying means].

Abstract

A service program for selecting magnifying means has been developed and tried in 59 patients (110 eyes) with senile maculodystrophy and cataracts. Attempts at choosing traditional magnifiers (magnifying glasses, hyperoculars, telescopic eyeglasses, and contact lens-eyeglasses system) were made with due consideration for the focus of lesions and the anatomooptic parameters of the eye (corneal refraction, size of the anteroposterior axis, and clinical refraction). The results indicate that the proposed program helped effectively choose traditional magnifiers for the majority (81.35%) of the above patient population.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

S E Avetisov, A S Vvedenskií. [Service (computer) program for selecting magnifying means].. https://pubmed.ncbi.nlm.nih.gov/9265358/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

A simplified technique for stable transscleral suture fixation of posterior chamber intraocular lenses.

We describe a technique for implanting ciliary sulcus posterior chamber intraocular lenses (PCIOLs). This technique uses radial keratotomy (RK) markers to facilitate PCIOL centration, 2-point scleral suture fixation for each haptic to prevent PCIOL tilt, and partial thickness sclerotomies to prevent suture erosion. Postoperative results of 20 eyes with PCIOLs sutured to the ciliary sulcus were reviewed. Suture placement was determined using a Mendez degree gauge with Bores axis marker (Katena USA, Denville, NJ). Two-point scleral suture fixation without a scleral flap was used for each haptic. Average follow-up was 17.1 months. Postoperative best corrected visual acuity was 20/40 or better in 95% of eyes. Average best-corrected post-operative visual acuity was 20/29. One patient with a previous retinal disease lost 3 lines of visual acuity. This technique results in excellent postoperative visual acuity without PCIOL decentration, tilt, or suture erosion.

Aphakia, Postcataract

[Etiology of contact lens failure in pediatric aphakia. Indications for intraocular lenses?].

UNLABELLED: Due to the low rate of complications, lentectomy and contact lens fitting is the standard treatment for congenital cataract. However, contact lens fitting is not possible in all children. The authors report the main reasons for discontinuation of contact lenses in their patients. METHOD: In 134 consecutive lentectomies of 90 children, the underlying eye diseases and general diseases, the age at operation, compliance of parents and children, and social background were analyzed. RESULTS: Twenty of the 90 children had to discontinue contact lens wearing. Twelve of these children were operated on one eye and 8 on both eyes. Only 2 children showed signs of contact lens complications. In 2 children treatment was stopped because of the poor visual prognosis and in 10 children the parents discontinued contact lens treatment because of a severe handicap of the child (n = 2) or due to misunderstanding and parental noncompliance (n = 8). Six children refused contact lenses without obvious reasons. Among the latter, children 2-4 years of age were at the greatest risk. Children with additional systemic abnormalities frequently developed contact lens intolerance. CONCLUSION: In children with systemic abnormalities and in the case of parental communication and compliance problems, discontinuation of contact lenses has to be expected in up to 30% of cases. In these children and in children who object to contact lenses at the age of 2-4 years, intraocular lens implantation should be considered, especially in unilateral cataract, if successful contact lens treatment is not achievable within 8-12 weeks.

Aphakia, Postcataract

Medical prophylaxis and treatment of cystoid macular edema after cataract surgery. The results of a meta-analysis.

OBJECTIVE: The study aimed to determine the effectiveness of prophylactic medical intervention in reducing the incidence of cystoid macular edema (CME) and the effectiveness of medical treatment for chronic CME after cataract surgery. DESIGN: The study design was a systematic review and meta-analysis of published reports of randomized clinical trials (RCTs). PARTICIPANTS: Sixteen RCTs involving 2898 eyes examining the effectiveness of medical prophylaxis of CME and 4 RCTs involving 187 eyes testing the effectiveness of medical treatment of chronic CME were used in the study. INTERVENTIONS: Medical prophylaxis of treatment (cyclo-oxygenase inhibitors or corticosteroids) versus control (placebo or active treatment) was performed. MAIN OUTCOME MEASURES: Incidence of angiographically diagnosed CME, incidence of clinically significant CME, and vision were measured. RESULTS: Thirty-six articles reported testing a prophylactic medical intervention for CME after cataract surgery. The incidence of CME varied extensively across studies and was related to the study design used. Summary odds ratios (OR) indicated that prophylactic intervention was effective in reducing the incidence of both angiographic CME (OR = 0.36; 95% confidence interval [CI] = 0.28-0.45) and clinically relevant CME (OR = 0.49; 95% CI = 0.33-0.73). There also was a statistically significant positive effect on improving vision (OR = 1.97; 95% CI = 1.14-3.41). A combination of the results of the four RCTs testing medical therapy for chronic CME indicated a treatment benefit in terms of improving final visual acuity by two or more Snellen lines (OR = 2.67; 95% CI = 1.35-5.30). Assessment of the quality of the 20 RCTs included in the meta-analyses indicated problems in the design, execution, and reporting of a number of trials. CONCLUSION: A combination of the results from RCTs indicates that medical prophylaxis for aphakic and pseudophakic CME and medical treatment for chronic CME are beneficial. Because most of the RCTs performed to date have problems related to quality, a well-designed RCT is needed to confirm this result, using clinical CME and vision as outcomes.

Aphakia, Postcataract