Various ophthalmic diseases: blepharitis, corneal rot, corneal rot post-conjunctival flap, corneal edema post-conjunctival flap, glaucoma post-prosthetic eye surgery, corneal perforation, dystrophic cataract, dystrophic cataract early, post-conjunctival flap. Whatever the ophthalmic disease, you must not have an ophthalmic operating microscope first.

Ophthalmic surgery microscope requires a clear observation of the shallower or deeper parts of the operation, and a strong sense of stereo. In the case of shallow and deep range of operation, no need to adjust the focal length. Therefore, the operating microscope should have a certain range of depth of field requirements. The main mirror is at 45° with the microscope body, while the assistant mirror is at 30° with the microscope body. When adjusting the microscope focal length, should make the eyepiece field of view at the clear until.

Ophthalmic surgical microscope illumination should be concentrated good uniformity, illumination area and the field of view of the microscope need to overlap consistent. The physical properties of the light source should be adapted to the needs of surgery, in the longer period of surgery, the light source should not make trauma damage. Coaxial illumination should be available because it not only excludes shadows during surgery, but also allows the use of fundus reflections to discriminate other tiny objects. The illumination light should be of sufficient brightness to clearly distinguish at least the 11-0 line, as well as the condition of the line after suturing. Especially if high magnification is required, a stronger light is needed. Most of the current cold light sources and optical fibers are used to achieve a stronger brightness.