• Product Name: BL-III-A Crack Lamp Microscope
• Order number: tlyon000426
• Brand Name: Shanghai Expo

If you find that the product information is inaccurate, please feel free to correct it; For inquiries about related categories and brand products, please contact us

Crack lamp microscope is a commonly used examination and diagnostic instrument in ophthalmology. Through it, transparent tissues of the eyeball, such as the cornea, anterior chamber, lens, vitreous, etc., can be observed in three dimensionsIt has clear recognition ability for the morphology, color, and spatial location of lesions, and can also observe opaque tissues such as cornea and sclera. The slit lamp microscope is also an important instrument in optometry, especially when wearing contact lenses. It is necessary to use the slit lamp microscope to examine the wearer's cornea and other conditions. Therefore, it is also an essential instrument in eyeglass shops

Microscope type	Intersection angle stereoscopic format
Variable magnification form	Objective lens with two adjustable settings
eyepiece	10x and16x
Total magnification and field of view	10x：10x (diameter 18mm), 16x (diameter 14.5mm) 16x:16x（φ11.25mm）、25.6x（φ9mm）
Pupil distance adjustment range	10x: 55mm～82mm 16x: 51mm～78mm
Diopter Control	10x: ±5D 16x: ±10D
Crack width	0m～11mm continuously adjustable (at 11mm, the crack is circular)
Crack height	1mm～10mm continuously adjustable
Crack angle	0°～180 ° rotation, continuously adjustable from vertical to horizontal direction
Crack inclination	0-23°
Spot diameter	φ9mm、φ8mm、φ5mm、φ3mm、φ2mm、φ1mm、φ0.2mm
Filter	Insulation sheet, dimming sheet, non red sheet, cobalt blue sheet
light bulb	12v 50w halogen tungsten bulb
Optional accessories	tonometer

The function of slit lamp

When using diffuse illumination, the collection of light and low magnification can provide a comprehensive observation of the cornea, iris, and lens.

When using direct focus illumination, the curvature and thickness of the cornea, as well as the presence of foreign objects and corneal posterior deposits, can be observed（KP )， And the level and morphology of lesions such as infiltration and ulceration; When the focus is pushed back, the cloudy part of the crystal and the lesion in the anterior one-third of the vitreous body can be observed; If conical light is used, it can detect the floating particles in the room water.

When using the mirror reflection irradiation method, one can carefully observe the subtle changes in the anterior and posterior corneal and lens anterior and posterior capsules, such as shedding cells on the tear film, patterns on the corneal endothelium, patterns on the lens anterior and posterior capsules, and patterns on the adult nucleus.

When using the posterior reflex irradiation method, corneal epithelial or endothelial edema, corneal posterior deposits, neovascularization, mild scars, and crystal vacuoles can be observed.

When using the corneal illumination method, extremely faint opacities such as opacities, blisters, perforations, scars, etc. can be observed on the cornea.

When using indirect illumination, it is possible to observe the pupillary sphincter, internal bleeding of the iris, iris blood vessels, corneal vascular opacities, etc. At the same time, the slit lamp microscope can also be equipped with a front mirror, contact lens, and three sided mirror, which can be used to examine the peripheral retina, anterior chamber angle, and posterior vitreous body. Through binocular observation, stereo vision can be generated.

So, through slit lamp microscopy, contraindications for wearing soft corneal contact lenses can be identified, and appropriate soft corneal contact lenses can be selected for the wearer

Mirror.