Abstract:
A system includes a focusing element configured to receive electromagnetic radiation coaxially and to focus the electromagnetic radiation to generate focused radiation. The system also includes a refracting element having an associated focal plane. The refracting element is configured to receive the focused radiation, and to refract the focused radiation to produce refracted radiation having an annular pattern at the focal plane. The system also includes a slit lamp having a receiving element to receive the refracted radiation.
Abstract:
A photocoagulation system is described herein that facilitates multi-spot laser treatment procedures inside the eye and close to the patient's retina. In one example embodiment, a modified endocular probe operates with a laser system to move the probe or a probe needle so as to project a multi-spot pattern on a patient's retina by controlling the rotation movement of the needle (and needle tip). In addition, the system facilitates maneuverability and angular deviation of the needle tip and synchronizes these different movements with the laser photocoagulator system so as to project the aiming beam and thereafter the laser treatment beam in the desired pattern location with the desired exposure time and power.
Abstract:
본 발명은 안과용 치료장치, 이의 제어방법 및 안저 병변 치료 방법에 관한 것으로, 치료광(treatment beam)을 발생시키는 치료광 발생부, 상기 치료광 발생부로부터 발생된 치료광이 환자의 안저(fundus)로 조사되는 경로를 형성하는 빔 딜리버리부, 상기 안저의 병변 영역과 인접한 위치로 상기 치료광이 조사되도록 상기 빔 딜리버리부를 제어하는 제어부를 포함하는 안과용 치료장치, 이의 제어방법 및 이를 이용한 안저 병변 치료 방법을 제공한다.
Abstract:
Treatment validation techniques include generating a modified treatment target from an original treatment target using a modification process, and comparing induced aberrations provided by the original and modified treatment targets, so as to verify the modified treatment target or the modification process. In some cases, a modification process may include a deconvolution process, a low pass filter process, a scaling process, or an adjustment process. The induced aberrations may include high order aberrations, such as spherical aberration.
Abstract:
The present disclosure generally relates to a technique for centering an application field for an ophthalmic device or a method. More specifically, and without limitation, the disclosure relates to a device and a method for centering an application field relative to the cornea of a human eye responsive to movement of the eye tracked in real-time during the ophthalmic application based on a pupil center. An ophthalmic device or method allows performing one or more procedures with respect to an eye of a patient, such as a surgical, therapeutic and diagnostic procedure, e.g., including and not limited to Laser-Assisted in-situ Keratomileusis (LASIK), Epi-LASIK, PRK, lenticule extraction or keratoplasty.
Abstract:
An example method for preparing a surgical site for a femtosecond laser-assisted cataract surgical procedure includes measuring a lower eyelid length of a patient, and determining whether the patient is associated with one or more exposure resistant factors. The method also includes, upon determining that the measured lower eyelid length does not exceeds a threshold length or determining that the patient is associated with at least one exposure resistant factor, performing a canthotomy procedure on the patient.
Abstract:
Verfahren zum Justieren einer scannenden Laserbehandlungseinrichtung (2) am Auge (25), wobei das Verfahren folgende Schritte aufweist: Verwenden einer Laserbehandlungseinrichtung (2), die aufweist - eine Laserstrahlquelle (7) zur Abgabe von Behandlungslaserstrahlung, - ein Handstück (4), in das die Behandlungslaserstrahlung eingekoppelt ist und das mindestens drei Markierungen (22, 23) und ein Austrittsende (12) zum Abgeben der Behandlungslaserstrahlung in das Auge (25) aufweist, - einen steuerbaren Laserscanner (8), der zwischen der Laserstrahlquelle (7) und dem Austrittsende (12) angeordnet ist und mit der Justierstruktur starr verbunden ist, um die Behandlungslaserstrahlung scannend über das Auge (25) zu führen; Verwenden eines OCT-Moduls (3) mit einem steuerbaren OCT-Scanner (17) zum scannenden Abbilden von Strukturen des Auges (25), wobei das Handstück (4) und das OCT-Modul (3) in einem ersten Zustand frei gegeneinander beweglich sind und das Handstück (4) eine Koppelstelle für das OCT-Modul (3) zur Abbildung des Auges (25) durch das Austrittsende (12) hindurch aufweist; Abbilden der am Handstück (4) vorgesehenen Markierungen (22, 23) mit dem OCT-Modul (3) und Ermitteln einer ersten Relativlage zwischen den Markierungen (22, 23) des Handstücks (4) und dem OCT-Scanner (17); Abbilden einer vorbestimmten Struktur des Auges (25) mit dem OCT-Modul (3) durch das Handstück (4) und das Austrittsende (12) hindurch und Ermittlung einer zweiten Relativlage zwischen der vorbestimmten Struktur und dem OCT-Scanner (17), und Erzeugen von Signalen zur Ansteuerung des Laserscanners (8) auf Basis der ersten und der zweiten Relativlage.
Abstract:
Systems and methods of improving vision using an ophthalmological laser system are provided. A predetermined pattern characterized by a plurality of positions along a plurality of spatially distributed iris tissues of an eye of a patient is obtained. A laser illumination light beam is aligned in accordance with one or more of the plurality of positions along the plurality of spatially distributed iris tissues. The laser illumination light beam is delivered in the predetermined pattern to the plurality of spatially distributed iris tissues of the patient. At least a subset of the spatially distributed iris tissues is cauterized by the delivery of the laser illumination light beam in the predetermined pattern, thereby resulting in a permanent decrease in diameter of the pupil of the eye.
Abstract:
An apparatus for determining an orientation of anatomical cornea structures includes: a lighting device (3), configured to direct a first luminous radiation (F1), polarized with an orientable polarization direction (D1), towards a cornea (11), when the cornea (11) is in an observation seat (12); a control device (8, 16, 20), configured to modify an orientation of the polarization direction (D1); an image acquisition device (6), arranged so as to receive a second luminous radiation (F2), transmitted through the cornea (11) arranged in the observation seat (12) and illuminated by the first luminous radiation (F1); and an acquisition polarizing filter (18), arranged so as to intercept the second luminous radiation (F2) directed towards the image acquisition device (6).
Abstract:
A system and method for performing ophthalmic surgery using an ultra-short pulsed laser is provided. The system includes a laser engine configured to provide an ultra-short pulsed laser beam, optics configured to direct the laser beam to an undocked eye of a patient, an eye tracker configured to measure five degrees of freedom of movement of the undocked eye, an optical coherence tomography module configured to measure depth of the undocked eye, and a controller configured to control laser beam position on the undocked eye toward a desired laser pattern based on depth and the five degrees of freedom of movement of the undocked eye. Adaptive optics are also provided. Also disclosed are a scleral ring including fiducial markings and a compliant contact lens and fluid fillable contact lens configured to facilitate ultra-short pulsed laser surgery while reducing or eliminating eye docking requirements.