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Instruction Manual for LANG-STEREOTEST models including: LANG FIXATION CUBE white, CUBE white, LANG FIXATION
INSTRUCTION MANUALS IFU multilingual
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DocumentDocumentLANG FIXATION CUBE white (Ref 801) LANG FIXATION CUBE red (Ref 802) LANG FIXATION STICK (Ref 901) Purpose The LANG FIXATION CUBES, and LANG FIXATION STICK are orthoptic products for binocular diagnostics, to be used mainly by ophthalmologists, orthoptists, optometrists, and opticians. They were designed by J. Lang, inventor of the LANG-STEREOTEST®, to facilitate the orthoptic examination in children. They are being used for assessment of eye fixation, motility, accommodation, convergence, for cover test, and to prepare the patient for testing with the LANG-STEREOTEST® or the LANG-STEREOPAD®. Main characteristics and Instruction for use LANG- FIXATION CUBE white and red: Both versions are used in the same manner: Show the cube while holding the handle vertically to the patient, so that he/she may see the image presented at reading distance. Claim the patient's attention by asking what he/she sees and observe eye position and fixation movements. Turn handle to present the next picture, ask again what is being shown on the presented surface and keep observing eyes. Move cube to all directions (sideward and upward) to test eye motility. Slowly approach the cube with the top or other surface shown to the patient, to test convergence. The LANG FIXATION STICK is used in a similar manner to the LANG FIXATION CUBE. Have your patient look at and name the picture motifs in sequence from top to bottom while observing his eye movements. Use the back for determining near visual acuity (0.2-0.5) at 30cm reading distance, as well as accommodation and convergence. Note Do not give the fixation auxiliaries to your patients, especially small children, to avoid breaking the handle or swal- lowing a part. Serious incidents involving the product must be reported to the competent authority. Care: It is best to clean them with a damp cloth or a surface disinfection agent. For scientific literature, instructions in other languages, and worldwide distributors: www.lang-stereotest.com LANG-STEREOTEST AG CH-8700 Küsnacht Switzerland 801- 802-901-en 2021-09/ V2 Copyright ©, 2021. All rights reserved.