Sulfhydryl groups of the lens proteins of the chicken in embryonic and adult stages.
Explore the source record for details and available documents.
Biomedical subjects
Publications and source records attributed to J Zwaan.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
BACKGROUND: We studied long-term visual acuity in children who had macular hemorrhages at birth. METHODS: Of 11 involved children, seven had eye examinations at about age 10. Two were contacted by telephone; two were lost to follow up. RESULTS: Of the seven examined children, six had normal visual acuities. One had reduced vision in the eye with the macular hemorrhage, possibly related to deprivation amblyopia secondary to slow resorption of the hemorrhage. The two patients contacted by telephone reported normal vision. CONCLUSION: Although macular hemorrhages generally resolve without any lasting damage, the outcome may be less favorable in some patients.
BACKGROUND: Intraocular lens (IOL) implantation is increasingly accepted as a means of correcting pediatric aphakia. However, few large series have been reported. We present our experience over the past 6 years. METHODS: Charts were reviewed of 84 patients (88 eyes) 8 years old or younger who underwent IOL implantation at King Khaled Eye Specialist Hospital between January 1989 and March 1995. An attempt was made to correlate visual outcome with patient variables, and refractive outcome was assessed. RESULTS: Despite a high percentage of patients with penetrating trauma (24%) and a significant level of poor compliance with amblyopia treatment (33%), one third of patients saw 20/40 or better, and 60% had at least 20/80 acuity. Improved visual outcome correlated with later onset and shorter duration of opacity and compliance with occlusion therapy. The posterior capsule was left intact in the majority of cases; opacification occurred in 47 eyes, 25 of which required Nd:YAG capsulotomy. No unexpected complications occurred. Prediction of postoperative pseudophakic refraction was within 2 diopters (D) in 70% of patients. CONCLUSION: IOL implantation in appropriate children can be used as a safe alternative to other methods of correcting pediatric aphakia. Visual outcome often depends on amblyopia management. These patients are appropriately followed by ophthalmologists who are experienced in managing amblyopia and pediatric pseudophakia.
Explore the source record for details and available documents.