Apparatus and methods are provided for interfacing a surgical laser with an eye using a patient interface device that minimizes aberrations through a combination of a contact lens surface positioning and a liquid medium between an anterior surface of the eye and the contact lens surface.

In one embodiment, a double-reflecting contact lens for viewing the anterior chamber and the anterior chamber angle of an eye, the eye having an optical axis, includes a lens body having a contact end defining at least a portion of a first surface for contacting an eye and a viewing end defining at least a portion of a second surface, a first reflecting surface disposed adjacent the lens body, wherein the first reflecting surface is a planar surface extending from the viewing end to a middle region in the body between the viewing end and the contact end, and a second reflecting surface disposed adjacent the lens body, wherein the second reflecting surface is a planar surface extending from the viewing end to the contact end, the second reflecting surface opposing the first reflecting surface at an angle relative to the first reflecting surface.

In one embodiment, a double-reflecting contact lens for viewing the anterior chamber and the anterior chamber angle of an eye, the eye having an optical axis, includes a lens body having a contact end defining at least a portion of a first surface for contacting an eye and a viewing end defining at least a portion of a second surface, a first reflecting surface disposed adjacent the lens body, wherein the first reflecting surface is a planar surface extending from the viewing end to a middle region in the body between the viewing end and the contact end, and a second reflecting surface disposed adjacent the lens body, wherein the second reflecting surface is a planar surface extending from the viewing end to the contact end, the second reflecting surface opposing the first reflecting surface at an angle relative to the first reflecting surface.

System and method directed towards providing full and even illumination of a patient's retina through lighting integrated into a handheld fundus lens. By integrating the lighting, the method and system reduces and even eliminate many lens artifacts and reflections. By increasing the accuracy, quality, and field of view afforded during clinical examination of the retina, the method and system will allow practitioners to make more accurate diagnoses and will increase safety during retinal surgical procedures.

System and method directed towards providing full and even illumination of a patient's retina through lighting integrated into a handheld fundus lens. By integrating the lighting, the method and system reduces and even eliminate many lens artifacts and reflections. By increasing the accuracy, quality, and field of view afforded during clinical examination of the retina, the method and system will allow practitioners to make more accurate diagnoses and will increase safety during retinal surgical procedures.

A device for illuminating a posterior segment of an eye may include multiple channels. Each of the channels may include multiple illumination paths such as a first region illumination path, and a second region illumination path. The first region illumination path and the second region illumination path may be illuminated at different times such that a first region and a second region may be imaged without interference from a non-illuminated illumination path.

Molded ophthalmic lenses with improved optical qualities can be manufactured at high volumes at low costs to provide single-use lenses. These ophthalmic lenses are contact lenses for examination or treatment of the interior of an eye, are formed of a moldable material, and have a ring portion integral with an optical and eye contacting portions. The ring portion extends from the main body and the ratio of the height of the ring portion to thickness of the lens is about 0.1 to 0.2. These features reduce production costs and improve the optical quality of the lens including allowing any debris, bubbles and the like that tend to adhere to the surface of the mold during the molding process to collect away from the optical centerline of the lens so as to improve the optical quality of the molded ophthalmic lens and minimizing shrinkage during the molding process.

A new ocular contact lens has been designed to increase the amount of light reaching the retina. The contact lens edge is chamfered to redirect and increase the light reaching the retina. A light source encircles and contacts the straight or curved chamfered edge. Additionally, a reflective cylinder and its top wall encircle the lens to block any loss of light. This distal edge of the contact lens may be rounded to increase the angle of retina visible. A new ocular imaging camera has a low-light camera subassembly with server, a photosensor next to low-light camera, a short cylindrical housing, a space between the camera subassembly and the housing, an internal program in server to detect good or poor image quality and an alarm for poor image quality, wherein an operator recaptures the image. A system has a highly efficient method to screen and diagnose a large number of patients using the new ocular contact lens and ocular imaging camera. The system receives and processes the photographs. The photographs are transmitted to eye care specialists' smart phone, tablet or virtual reality device for evaluation. As specified, the eye care specialist separates normal from abnormal, diagnoses the abnormality, and may even provide detailed information, such as the grade of the abnormality. The server receives this information and automatically generates the suitable report for the healthcare professional. The server also processes payment to the eye care specialist.

A wide range within a subject eye is observed while a burden on a subject of whom the subject eye is part is moderated. In an optical system that deals with light reflected from the fundus of the subject eye, a first optical system that pertains to a field of view of a fundus central portion centered on an optical axis is used as a standard optical system. The optical system can be switched by a replacement mechanism from the first optical system to a second optical system that pertains to a field of view of a fundus surroundings portion surrounding the fundus central portion.

A wide range within a subject eye is observed while a burden on a subject of whom the subject eye is part is moderated. In an optical system that deals with light reflected from the fundus of the subject eye, a first optical system that pertains to a field of view of a fundus central portion centered on an optical axis is used as a standard optical system. The optical system can be switched by a replacement mechanism from the first optical system to a second optical system that pertains to a field of view of a fundus surroundings portion surrounding the fundus central portion.