31 results about "Ophthalmic optics" patented technology

The present invention relates to a process for treating an ophthalmic lens comprising two main sides the first one of which comprises a thin external organic or inorganic layer, comprising:- at least one treatment step for the second lens side through energetic and / or reactive species capable to perform a surface physical attack and / or chemical modification,- in option, at least one or more stepsfor depositing inorganic or organic layers carried out simultaneously or subsequently to the treatment step through said energetic and / or reactive species,characterized in that before the treatment step through energetic and / or reactive species, a deposition of a temporary protective layer is performed onto the thin external organic or inorganic layer.Application to ophthalmic optics.

The invention discloses a flat-bed ophthalmic optical observation support, belonging to the technical field of ophthalmic medical equipment, comprising a fixed seat, a first rotating rod, a second rotating rod, a rotating joint, an optical support, an adjustment device, an optical observation device, and a rotating adjustment wheel to adjust The rotation of the adjustment wheel drives the rotation of the adjustment screw, the adjustment screw and the screw of the wheel drive, the wheel drives the second shaft to rotate, the rotation of the second shaft drives the second bevel gear, and the second bevel gear meshes with the first bevel gear to drive, thereby driving the cylindrical The sleeve is rotated to achieve the purpose of adjusting the optical observation angle and fixing the optical observation device. The device is fixed on the hospital bed and is detachable for easy transfer. It is mainly used in the observation device during ophthalmic surgery and when the patient cannot sit and stand. Ophthalmic observation stand, the device is easy to use and easy to operate.

The invention discloses a method and device for obtaining the optic disk area through ophthalmic optics coherence tomography images. The precise optic disk area is fast to obtain through the simple method and used for clinical analysis. The method comprises the steps that S101, the optic disk initial boundary circle is fitted after conversion is carried out on optic disk reference points of the multiple OCT images of an optic disk part many times; S102, moved coordinates of the k optic disk reference point are obtained through calculation and recorded into a storage container; S103, according to the moved coordinates of the k optic disk reference point, a refitted optic disk boundary circle is obtained by fitting the optic disk boundary circle; the S102 and the S103 are repeated, and all the optic disk reference points are moved to the correct position; S104, the area of the refitted optic disk boundary circle is calculated. The operation of selecting the optic disk reference points needing to be corrected is simple and accurate, the optic disk reference points found through the algorithm can be corrected to the accurate positions fast and conveniently, and accurate parameters like the optic disk area can be obtained through fast calculation after correction is finished.