Biomedical subjects

A Winther-Nielsen

Publications and source records attributed to A Winther-Nielsen.

4 recordsLinked to original sources

PubMed1998

Retinal detachment after cataract extraction in myopic eyes.

PURPOSE: To determine the incidence of retinal detachment (RD) after cataract extraction in people 40 years of age or older with axial myopia (i.e., axial length > or = 25.5 mm). SETTING: Fifteen Danish eye clinics. METHODS: Two hundred forty-five eyes had cataract extraction performed at 15 eye clinics; 237 eyes had extracapsular cataract extraction (ECCE) and 8 eyes, intracapsular cataract extraction (ICCE). Postoperative data were reported by the practicing ophthalmologists. Mean follow-up was 27 months (range 14 to 32 months). RESULTS: Five RDs occurred in the 245 eyes (2.0%). Excluding the ICCE cases and the two cases of combined cornea transplantation and ECCE, RD occurred in 4 of the 235 eyes that had ECCE (1.7%). The incidence after ECCE with posterior chamber lens implantation was 1.4%. Complete postoperative status was reported on 158 eyes. Forty-eight eyes (30.4%) had a neodymium:YAG capsulotomy and 3 (6.0%) developed an RD 1, 3.5, and 21 months after the capsulotomy. CONCLUSION: The RD incidence after ECCE with posterior chamber lens implantation was low but higher than that in unselected populations. The incidence increased after laser capsulotomy.

Adult↗

PubMed1995

Contrast sensitivity, glare, and visual function: diffractive multifocal versus bilateral monofocal intraocular lenses.

We measured contrast sensitivity binocularly in different light conditions in nine patients with bilateral diffractive multifocal intraocular lenses (IOLs) and nine patients with bilateral monofocal IOLs. In general, the diffractive multifocal group had a lower mean contrast sensitivity. Patients completed a questionnaire that asked about their vision under daylight, twilight, and sunshine conditions. Monofocal patients had complete visual restitution in all light conditions. Multifocal patients reported several visual problems, especially when driving at night, but also in normal daylight and cloudy weather conditions.

Aged↗

PubMed1993

[Facial erysipelas].

Facial erysipelas is quite uncommon today in Denmark. However, as the disease may be fatal without the proper treatment, the necessity for definite diagnosis is stressed on the basis of a case.

Diagnosis, Differential↗

PubMed1993

Contrast sensitivity and glare in patients with a diffractive multifocal intraocular lens.

Contrast sensitivity was measured in 25 patients who had a multifocal diffractive intraocular lens and in 23 control patients with a monofocal lens in four simulated light conditions: (1) daylight, (2) daylight with peripheral glare, (3) twilight, (4) twilight with central glare. In normal daylight and twilight, contrast sensitivity of the multifocal group was significantly lower than the control group's (P < .05). The difference was 0.13 log units for the multifocal group and 0.17 log units for the control group (mean value across the tested frequency from 1.5 to 18 cycles/deg). Peripheral glare reduced contrast sensitivity under daylight conditions in both groups (P < .05), but the loss did not differ significantly between the two (P > .05). Central glare reduced contrast sensitivity under twilight conditions in both groups (P < .05), with the greatest loss in the multifocal patients (P < .001). We conclude that the most significant loss of contrast sensitivity in patients with the diffractive multifocal intraocular lens is found with central glare under twilight conditions.

Aged↗