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Posterior capsule opacification in the presence of an intraocular lens with a sharp versus rounded optic edge.
Ophthalmology. 2005 Sep; 112(9):1550-6.O

Abstract

PURPOSE

To compare the degree of posterior capsule opacification (PCO) and visual function in eyes implanted with an acrylic intraocular lens (IOL) with a sharp posterior optic edge with that in eyes implanted with an IOL with a rounded optic edge.

DESIGN

Randomized clinical trial.

PARTICIPANTS

Seventy-five consecutive patients scheduled for bilateral phacoemulsification were assigned randomly to 1 of 2 groups. One group received an acrylic IOL with a sharp edge (Sensar AR40e, AMO, Santa Ana, CA) in the left eye and an acrylic IOL of the same optic material and loops but with a rounded-edge optic (Sensar AR40) in the right eye. The other group received the sharp-edged IOL in the right eye and the rounded-edge IOL in the left eye. Sixty-nine patients (92%) completed follow-up.

INTERVENTION

All patients underwent implantation of a sharp-edged IOL in 1 eye and a rounded-edge IOL in the fellow eye.

MAIN OUTCOME MEASURES

The PCO value of these patients was measured using the Scheimpflug videophotography system at 1, 3, 6, 12, 18, and 24 months after surgery. The incidence of eyes that required a neodymium:yttrium-aluminum-garnet (Nd:YAG) laser posterior capsulotomy was examined. Visual acuity and contrast sensitivity with and without a glare source also were evaluated.

RESULTS

The mean PCO value in the sharp-edge IOL group was significantly less than that in the rounded-edge IOL group throughout the follow-up period. The incidence of Nd:YAG capsulotomy also was significantly less in the sharp-edge group than in the rounded-edge group (P = 0.0095). No significant difference was found in mean visual acuity during the 24 months of follow-up. However, contrast visual acuity with and without glare was significantly better in the sharp-edge group than in the rounded-edge group at 24 months after surgery.

CONCLUSIONS

The degree of posterior capsule opacification in eyes with an acrylic IOL with a sharp posterior optic edge is significantly less than that in eyes with a rounded-edge IOL, and the sharp-edge optic led to better contrast sensitivity with and without glare.

Authors+Show Affiliations

Hayashi Eye Hospital, Fukuoka, Japan. hayashi-ken@hayashi.or.jpNo affiliation info available

Pub Type(s)

Clinical Trial
Comparative Study
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

16005976

Citation

Hayashi, Ken, and Hideyuki Hayashi. "Posterior Capsule Opacification in the Presence of an Intraocular Lens With a Sharp Versus Rounded Optic Edge." Ophthalmology, vol. 112, no. 9, 2005, pp. 1550-6.
Hayashi K, Hayashi H. Posterior capsule opacification in the presence of an intraocular lens with a sharp versus rounded optic edge. Ophthalmology. 2005;112(9):1550-6.
Hayashi, K., & Hayashi, H. (2005). Posterior capsule opacification in the presence of an intraocular lens with a sharp versus rounded optic edge. Ophthalmology, 112(9), 1550-6.
Hayashi K, Hayashi H. Posterior Capsule Opacification in the Presence of an Intraocular Lens With a Sharp Versus Rounded Optic Edge. Ophthalmology. 2005;112(9):1550-6. PubMed PMID: 16005976.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Posterior capsule opacification in the presence of an intraocular lens with a sharp versus rounded optic edge. AU - Hayashi,Ken, AU - Hayashi,Hideyuki, PY - 2005/01/13/received PY - 2005/03/22/accepted PY - 2005/7/12/pubmed PY - 2005/9/21/medline PY - 2005/7/12/entrez SP - 1550 EP - 6 JF - Ophthalmology JO - Ophthalmology VL - 112 IS - 9 N2 - PURPOSE: To compare the degree of posterior capsule opacification (PCO) and visual function in eyes implanted with an acrylic intraocular lens (IOL) with a sharp posterior optic edge with that in eyes implanted with an IOL with a rounded optic edge. DESIGN: Randomized clinical trial. PARTICIPANTS: Seventy-five consecutive patients scheduled for bilateral phacoemulsification were assigned randomly to 1 of 2 groups. One group received an acrylic IOL with a sharp edge (Sensar AR40e, AMO, Santa Ana, CA) in the left eye and an acrylic IOL of the same optic material and loops but with a rounded-edge optic (Sensar AR40) in the right eye. The other group received the sharp-edged IOL in the right eye and the rounded-edge IOL in the left eye. Sixty-nine patients (92%) completed follow-up. INTERVENTION: All patients underwent implantation of a sharp-edged IOL in 1 eye and a rounded-edge IOL in the fellow eye. MAIN OUTCOME MEASURES: The PCO value of these patients was measured using the Scheimpflug videophotography system at 1, 3, 6, 12, 18, and 24 months after surgery. The incidence of eyes that required a neodymium:yttrium-aluminum-garnet (Nd:YAG) laser posterior capsulotomy was examined. Visual acuity and contrast sensitivity with and without a glare source also were evaluated. RESULTS: The mean PCO value in the sharp-edge IOL group was significantly less than that in the rounded-edge IOL group throughout the follow-up period. The incidence of Nd:YAG capsulotomy also was significantly less in the sharp-edge group than in the rounded-edge group (P = 0.0095). No significant difference was found in mean visual acuity during the 24 months of follow-up. However, contrast visual acuity with and without glare was significantly better in the sharp-edge group than in the rounded-edge group at 24 months after surgery. CONCLUSIONS: The degree of posterior capsule opacification in eyes with an acrylic IOL with a sharp posterior optic edge is significantly less than that in eyes with a rounded-edge IOL, and the sharp-edge optic led to better contrast sensitivity with and without glare. SN - 1549-4713 UR - https://www.unboundmedicine.com/medline/citation/16005976/Posterior_capsule_opacification_in_the_presence_of_an_intraocular_lens_with_a_sharp_versus_rounded_optic_edge_ DB - PRIME DP - Unbound Medicine ER -