TY - JOUR
T1 - Effect of supplementary implantation of a sulcus-fixated intraocular lens in patients with negative dysphotopsia
AU - Makhotkina, Natalia Y
AU - Dugrain, Vincent
AU - Purchase, Daniel
AU - Berendschot, Tos T J M
AU - Nuijts, Rudy M M A
N1 - Copyright © 2018 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.
PY - 2018/2
Y1 - 2018/2
N2 - PURPOSE: To evaluate whether the outcome of negative dysphotopsia treatment by implantation of a Sulcoflex intraocular lens (IOL) can be understood using individual biometry and optical modeling data.SETTING: University Eye Clinic, Maastricht University Medical Centre, Maastricht, the Netherlands.DESIGN: Retrospective case series.METHODS: Patients with negative dysphotopsia were treated with supplementary implantation of a sulcus-fixated IOL. Preoperative and postoperative ray-tracing optical models of eyes with negative dysphotopsia were constructed in the Zemax Optic Studio program using individual biometric data. The relationship between biometric parameters, ray-tracing data, and the course of negative dysphotopsia was evaluated.RESULTS: The study comprised 8 patients (10 eyes). After surgery, negative dysphotopsia resolved completely in 6 eyes, partially in 2 eyes, and persisted in 2 eyes. There was no relationship between the course of negative dysphotopsia and age, IOL power, or individual biometry results other than a larger angle κ that was observed in 2 patients with persistent negative dysphotopsia after surgery. Preoperative ray-tracing models showed a decrease in light irradiance at the periphery relative to the center of visual field. After sulcus-fixated IOL implantation, this decrease partially resolved, in particular, for a small pupil aperture (P < .05), and it was more prominent in patients in whom negative dysphotopsia resolved completely than in those with partial or persistent negative dysphotopsia (P = .065 at 1.5 mm aperture).CONCLUSIONS: Of all individual biometry results, only angle κ showed a relationship with the course of negative dysphotopsia. In patient-specific optical modeling of sulcus-fixated IOL implantation, the increase in simulated light irradiance at the periphery was related to the course of negative dysphotopsia.
AB - PURPOSE: To evaluate whether the outcome of negative dysphotopsia treatment by implantation of a Sulcoflex intraocular lens (IOL) can be understood using individual biometry and optical modeling data.SETTING: University Eye Clinic, Maastricht University Medical Centre, Maastricht, the Netherlands.DESIGN: Retrospective case series.METHODS: Patients with negative dysphotopsia were treated with supplementary implantation of a sulcus-fixated IOL. Preoperative and postoperative ray-tracing optical models of eyes with negative dysphotopsia were constructed in the Zemax Optic Studio program using individual biometric data. The relationship between biometric parameters, ray-tracing data, and the course of negative dysphotopsia was evaluated.RESULTS: The study comprised 8 patients (10 eyes). After surgery, negative dysphotopsia resolved completely in 6 eyes, partially in 2 eyes, and persisted in 2 eyes. There was no relationship between the course of negative dysphotopsia and age, IOL power, or individual biometry results other than a larger angle κ that was observed in 2 patients with persistent negative dysphotopsia after surgery. Preoperative ray-tracing models showed a decrease in light irradiance at the periphery relative to the center of visual field. After sulcus-fixated IOL implantation, this decrease partially resolved, in particular, for a small pupil aperture (P < .05), and it was more prominent in patients in whom negative dysphotopsia resolved completely than in those with partial or persistent negative dysphotopsia (P = .065 at 1.5 mm aperture).CONCLUSIONS: Of all individual biometry results, only angle κ showed a relationship with the course of negative dysphotopsia. In patient-specific optical modeling of sulcus-fixated IOL implantation, the increase in simulated light irradiance at the periphery was related to the course of negative dysphotopsia.
KW - Journal Article
KW - ETIOLOGY
KW - MANAGEMENT
KW - FAR PERIPHERAL-VISION
KW - SYMPTOMS
U2 - 10.1016/j.jcrs.2017.11.013
DO - 10.1016/j.jcrs.2017.11.013
M3 - Article
C2 - 29587976
SN - 0886-3350
VL - 44
SP - 209
EP - 218
JO - Journal of Cataract and Refractive Surgery
JF - Journal of Cataract and Refractive Surgery
IS - 2
ER -