Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation.

Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation. Abstract Text:

BACKGROUND: Standard examination of contrast sensitivity under conditions of glare disability is performed with incandescent light. A new halogen glare test that simulates glare as seen with oncoming vehicle headlights was used to measure glare disability in patients implanted with multifocal and monofocal intraocular lenses (IOLs). METHODS: 28 patients with an average age of 69 years (SD 12 years) were implanted with a monofocal IOL (SI-40NB, Allergan) and 28 patients with an average of 66 years (12 years) were implanted with a refractive multifocal IOL (Array-SA-40N, Allergan). All patients were followed for 5 months postoperatively. Contrast sensitivity at four spatial frequencies (3, 6, 12, and 18 cycles per degree, cpd) with and without a glare source were measured using the halogen glare test (CSV-1000 HGT). Statistical analysis was performed using the two sample Wilcoxon test. The local significance level was set at 0.05. RESULTS: When tested at the lowest spatial frequency (3 cpd) without halogen glare, contrast sensitivity was lower in the multifocal group than in the monofocal group (p=0.0292). With additional glare, there was no difference between both groups. At all other spatial frequencies (6, 12, and 18 cpd), when tested without halogen glare (6 cpd, p=0.5250; 12 cpd, p=0.8483; 18 cpd, p=0.9496) and with moderate (3 cpd, p=0.7993; 6 cpd, p=0.4639; 12 cpd, p=0.7456; 18 cpd, p=1.0) and high halogen glare (3 cpd, p=0. 1513; 6 cpd, p=0.2016; 12 cpd, p=0.3069; 18 cpd, p=0.9933), there was no statistically significant difference between groups. Patients in both groups of age 70 or older had reduced contrast sensitivity without halogen glare and with moderate and strong glare. When monofocal and multifocal patients older than 70 years of age were analysed separately, there was no statistically significant difference in contrast sensitivity with and without glare. Astigmatism >1 dioptre had no significant influence on contrast sensitivity and glare disability when monofocal and multifocal eyes were compared. CONCLUSION: Reduced contrast sensitivity was found in the multifocal group only at the lowest spatial frequency without halogen glare. The monofocal and multifocal groups had no statistically significant differences in contrast sensitivity with moderate and strong glare. These results suggest no difference in glare disability induced by halogen light similar to oncoming vehicle headlights for patients implanted with monofocal and multifocal IOLs.

Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation. Publishing Authors By Initials

For similar surgical procedures, operative: postoperative period research abstracts see: surgical procedures, operative: postoperative period research

PUBMED ID PMID:

MEDLINE DATE:

Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: The British journal of ophthalmology

VOLUME: 84

Page Numbers: 1109-12

Journal Abbreviation: Br J Ophthalmol

ISSN: 0007-1161

DAY: 28

MONTH: Oct

YEAR: 2000

Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 421041

Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation. Keywords Mesh Terms:

KEYWORDS: Postoperative Period

MESH TERMS: diagnostic use

Chemical & Substance for Abstract: Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation. Information

Substance Name: Halogens

Registry Number: 0

Grant and Affiliation Information for Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation.

AFFILIATION: Department of Ophthalmology, University of Mainz, Mainz, Germany.

Country: ENGLAND

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Br J Ophthalmol

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation Related Publications

• Contrast sensitivity and glare disability by halogen light after monofocal and multifocal lens implantation.
• [Not Available.]