Dramatic decrease in intraocular pressure following topical administration of cycloplegics in an aphakic child.

Gohar A Salam; Robert Rothman; David B Granet; Sylvia Kodsi

doi:10.1016/j.jaapos.2004.11.021

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Dramatic decrease in intraocular pressure following topical administration of cycloplegics in an aphakic child.

Gohar A Salam·Robert Rothman·David B Granet·Sylvia Kodsi

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Aphakia, Postcataract Cataract Cataract Extraction Child Female Gonioscopy Humans Intraocular Pressure Mydriasis Mydriatics Ocular Hypertension Ocular Hypotension Ophthalmic Solutions Pupil Tonometry, Ocular Case Reports Journal Article

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Gohar A Salam, Robert Rothman, David B Granet, Sylvia Kodsi. 2005. Dramatic decrease in intraocular pressure following topical administration of cycloplegics in an aphakic child.. https://doi.org/10.1016/j.jaapos.2004.11.021

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Congenital cataract extraction with primary aphakia and secondary intraocular lens implantation in the ciliary sulcus.

PURPOSE: To evaluate the results of cataract extraction without primary intraocular lens (IOL) implantation in children. SETTING: Ophthalmology Unit, University Hospital, Strasbourg, France. METHODS: This retrospective study comprised 157 congenital cataract cases (55 bilateral and 47 unilateral) treated between 1985 and 2001. Evaluated were the functional results (visual acuity, binocular vision) and factors influencing the prognosis (age at surgery, stage of cataract development, associated pathology, postoperative complications). In all patients, cataract extraction was via the pars plana and anterior vitrectomy was performed, leaving a peripheral capsular collarette in place. Postoperatively, all the patients were fitted with glasses or contact lenses, after which they had secondary implantation of an IOL in the ciliary sulcus. RESULTS: The functional results were similar to those in the literature for eyes with or without an IOL. Nevertheless, the literature reports a 25% risk for reoperation in the first 2 years after implantation and secondary vitrectomy for reopacification of the visual axis in 20% of bilateral cases and 38% of unilateral cases. CONCLUSIONS: Our functional results indicate that in cases of bilateral congenital cataracts, initial rehabilitation with aphakic correction and secondary IOL implantation leads to a predictable postoperative refraction and fewer complications. Visual rehabilitation in unilateral aphakia was more difficult because of poor compliance with contact lenses, generally leading to a preference for early IOL implantation.

Aphakia, Postcataract↗

PubMed2005

Anatomic and visual outcomes of scleral buckling versus primary vitrectomy in pseudophakic and aphakic retinal detachment: six-month follow-up results of a single operation--report no. 1.

PURPOSE: To compare the anatomic and visual results and complications of conventional scleral buckling versus primary vitrectomy for management of pseudophakic and aphakic retinal detachment. DESIGN: Prospective, randomized, multicenter clinical trial. PARTICIPANTS: Two hundred twenty-five eyes of 225 patients with pseudophakic or aphakic retinal detachment. INTERVENTION: Eligible eyes were assigned randomly either to conventional scleral buckling or primary vitrectomy without any buckle. MAIN OUTCOME MEASURES: Visual results, retinal reattachment rate, proliferative vitreoretinopathy, macular pucker, cystoid macular edema, choroidal detachment, intraocular pressure, extraocular muscle dysfunction, and anisometropia. RESULTS: There were no statistically significant differences between the 2 treatment groups regarding the single-operation retinal reattachment rate at the 1-, 2-, 4-, and 6-month follow-up examinations. Patients in the buckle group had 28% greater likelihood of anatomic success compared with those in the vitrectomy group (odds ratio, 1.28; 95% confidence interval, 0.73-2.24), indicating no statistically significant difference. Proliferative vitreoretinopathy was the main cause of anatomic failure in both groups and occurred independent of the surgical technique used. Best-corrected visual acuity at the 1-, 2-, 4-, and 6-month postoperative follow-up examinations showed no statistically significant difference between the 2 groups. Six months after surgery, 12.8% of eyes in the buckle group and 11.3% of eyes in the vitrectomy group achieved visual acuity of 20/40 or better. The difference between the 2 groups was not statistically significant. Corresponding figures were 66.3% and 64.5% for visual acuity of 20/200 or better in the buckle and vitrectomy groups, respectively, again with no statistically significant difference. There were no statistically significant differences in rates of complications. CONCLUSIONS: Scleral buckling and primary vitrectomy without an encircling band have comparable results in pseudophakic and aphakic retinal detachment. The choice of surgical technique depends on various factors, including patient compliance, cost of surgery, experience and capability of surgeons, and availability of appropriate instrumentation.

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PubMed2005

The telomere of human chromosome 1p contains at least two independent autosomal dominant congenital cataract genes.

AIMS: Multiple genetic causes of congenital cataract have been identified, both as a component of syndromes and in families that present with isolated congenital cataract. Linkage analysis was used to map the genetic locus in a six generation Australian family presenting with total congenital cataract. METHODS: Microsatellite markers located across all known autosomal dominant congenital cataract loci were genotyped in all recruited family members of the Tasmanian family. Both two point and multipoint linkage analysis were used to assess each locus under an autosomal dominant model. RESULTS: Significant linkage was detected at the telomere of the p arm of chromosome 1, with a maximum two point LOD of 4.21 at marker D1S507, a maximum multipoint exact LOD of 5.44, and an estimated location score of 5.61 at marker D1S507. Haplotype analysis places the gene inside a critical region between D1S228 and D1S199, a distance of approximately 6 megabases. The candidate gene PAX7 residing within the critical interval was excluded by direct sequencing in affected individuals. CONCLUSION: This is the third report of congenital cataract linkage to 1ptel. The critical region as defined by the shared haplotype in this family is clearly centromeric from the Volkmann cataract locus identified through study of a Danish family, indicating that two genes causing autosomal dominant congenital cataract map to the telomeric region of chromosome 1p.

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