Noninvasive Raman spectroscopic identification of intraocular lens material in the living human eye

Roel J. Erckens, Wayne F. March, Franciscus H. Jongsma, James P. Wicksted, Frederick Hendrikse, Eefke E. Smit, Massoud Motamedi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Purpose: To develop a safe noninvasive technique for identifying the material of intraocular lenses (IOLs)implanted in patients. Setting: Center for Biomedical Engineering and the Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, Texas, USA. Methods: Raman spectroscopy was used to noninvasively identify the type of ICL implanted after previous cataract surgery in 9 eyes of 6 patients who were legally blind as a result of eye disease. Three IOLs were characterized: Poly(methyl methacrylate) (PMMA) (n = 5), acrylic (n = 3), and silicone (n = 1). Confocal Raman spectroscopy was used with a laser power of 95/μW and exposure time of 1 second. Results: Distinct spectral peaks associated with each type of ICL were obtained. These included spectra peaks at 2840 cm-1, 2946 cm-1, and 3000 cm-1 for PMMA; 2917 cm-1, 2939 cm-1, and 3055 cm-1 for acrylic; and 2900 cm-1, 2961 cm-1, and 3048 cm-1 for silicone. The procedure was well accepted by patients, and there were no complications. Conclusions' The specific Raman spectra of the IOLs allowed for noninvasive determination of ICL material with the use of a safe light dose and an exposure time of 1 second.

Original languageEnglish (US)
Pages (from-to)1065-1070
Number of pages6
JournalJournal of Cataract and Refractive Surgery
Volume27
Issue number7
DOIs
StatePublished - 2001

Fingerprint

Intraocular Lenses
Raman Spectrum Analysis
Polymethyl Methacrylate
Silicones
Biomedical Engineering
Eye Diseases
Ophthalmology
Cataract
Lasers
Light

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Noninvasive Raman spectroscopic identification of intraocular lens material in the living human eye. / Erckens, Roel J.; March, Wayne F.; Jongsma, Franciscus H.; Wicksted, James P.; Hendrikse, Frederick; Smit, Eefke E.; Motamedi, Massoud.

In: Journal of Cataract and Refractive Surgery, Vol. 27, No. 7, 2001, p. 1065-1070.

Research output: Contribution to journalArticle

Erckens, Roel J. ; March, Wayne F. ; Jongsma, Franciscus H. ; Wicksted, James P. ; Hendrikse, Frederick ; Smit, Eefke E. ; Motamedi, Massoud. / Noninvasive Raman spectroscopic identification of intraocular lens material in the living human eye. In: Journal of Cataract and Refractive Surgery. 2001 ; Vol. 27, No. 7. pp. 1065-1070.
@article{b3ceeb10f1884991baadc2781dd62846,
title = "Noninvasive Raman spectroscopic identification of intraocular lens material in the living human eye",
abstract = "Purpose: To develop a safe noninvasive technique for identifying the material of intraocular lenses (IOLs)implanted in patients. Setting: Center for Biomedical Engineering and the Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, Texas, USA. Methods: Raman spectroscopy was used to noninvasively identify the type of ICL implanted after previous cataract surgery in 9 eyes of 6 patients who were legally blind as a result of eye disease. Three IOLs were characterized: Poly(methyl methacrylate) (PMMA) (n = 5), acrylic (n = 3), and silicone (n = 1). Confocal Raman spectroscopy was used with a laser power of 95/μW and exposure time of 1 second. Results: Distinct spectral peaks associated with each type of ICL were obtained. These included spectra peaks at 2840 cm-1, 2946 cm-1, and 3000 cm-1 for PMMA; 2917 cm-1, 2939 cm-1, and 3055 cm-1 for acrylic; and 2900 cm-1, 2961 cm-1, and 3048 cm-1 for silicone. The procedure was well accepted by patients, and there were no complications. Conclusions' The specific Raman spectra of the IOLs allowed for noninvasive determination of ICL material with the use of a safe light dose and an exposure time of 1 second.",
author = "Erckens, {Roel J.} and March, {Wayne F.} and Jongsma, {Franciscus H.} and Wicksted, {James P.} and Frederick Hendrikse and Smit, {Eefke E.} and Massoud Motamedi",
year = "2001",
doi = "10.1016/S0886-3350(00)00828-2",
language = "English (US)",
volume = "27",
pages = "1065--1070",
journal = "Journal of Cataract and Refractive Surgery",
issn = "0886-3350",
publisher = "Elsevier Inc.",
number = "7",

}

TY - JOUR

T1 - Noninvasive Raman spectroscopic identification of intraocular lens material in the living human eye

AU - Erckens, Roel J.

AU - March, Wayne F.

AU - Jongsma, Franciscus H.

AU - Wicksted, James P.

AU - Hendrikse, Frederick

AU - Smit, Eefke E.

AU - Motamedi, Massoud

PY - 2001

Y1 - 2001

N2 - Purpose: To develop a safe noninvasive technique for identifying the material of intraocular lenses (IOLs)implanted in patients. Setting: Center for Biomedical Engineering and the Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, Texas, USA. Methods: Raman spectroscopy was used to noninvasively identify the type of ICL implanted after previous cataract surgery in 9 eyes of 6 patients who were legally blind as a result of eye disease. Three IOLs were characterized: Poly(methyl methacrylate) (PMMA) (n = 5), acrylic (n = 3), and silicone (n = 1). Confocal Raman spectroscopy was used with a laser power of 95/μW and exposure time of 1 second. Results: Distinct spectral peaks associated with each type of ICL were obtained. These included spectra peaks at 2840 cm-1, 2946 cm-1, and 3000 cm-1 for PMMA; 2917 cm-1, 2939 cm-1, and 3055 cm-1 for acrylic; and 2900 cm-1, 2961 cm-1, and 3048 cm-1 for silicone. The procedure was well accepted by patients, and there were no complications. Conclusions' The specific Raman spectra of the IOLs allowed for noninvasive determination of ICL material with the use of a safe light dose and an exposure time of 1 second.

AB - Purpose: To develop a safe noninvasive technique for identifying the material of intraocular lenses (IOLs)implanted in patients. Setting: Center for Biomedical Engineering and the Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, Texas, USA. Methods: Raman spectroscopy was used to noninvasively identify the type of ICL implanted after previous cataract surgery in 9 eyes of 6 patients who were legally blind as a result of eye disease. Three IOLs were characterized: Poly(methyl methacrylate) (PMMA) (n = 5), acrylic (n = 3), and silicone (n = 1). Confocal Raman spectroscopy was used with a laser power of 95/μW and exposure time of 1 second. Results: Distinct spectral peaks associated with each type of ICL were obtained. These included spectra peaks at 2840 cm-1, 2946 cm-1, and 3000 cm-1 for PMMA; 2917 cm-1, 2939 cm-1, and 3055 cm-1 for acrylic; and 2900 cm-1, 2961 cm-1, and 3048 cm-1 for silicone. The procedure was well accepted by patients, and there were no complications. Conclusions' The specific Raman spectra of the IOLs allowed for noninvasive determination of ICL material with the use of a safe light dose and an exposure time of 1 second.

UR - http://www.scopus.com/inward/record.url?scp=0034906690&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034906690&partnerID=8YFLogxK

U2 - 10.1016/S0886-3350(00)00828-2

DO - 10.1016/S0886-3350(00)00828-2

M3 - Article

VL - 27

SP - 1065

EP - 1070

JO - Journal of Cataract and Refractive Surgery

JF - Journal of Cataract and Refractive Surgery

SN - 0886-3350

IS - 7

ER -