What are Flip-up loupes and TTL Loupes?

Surgical loupes are an integral part of the medical professionals. These surgical loupes are basically available in two designs, through the lens (TTL) and the flip-up design. Selection of the right type of loupe basically depends on the personal choice and preferences as both the TTL loupes and the flip-up loupes are have their own sets of benefits. Here we have spoken in detail about both the designs of the loupes.

TTL loupes

Through the lens (TTL) loupes are less bulky and lighter than their equivalent magnification flip-up design. As compared to the similar magnification flip-up design, the field of view offered by the TTL loupes is wider. These loupes are generally manufactured according to the preference of the individual customers. They are thus custom fit. The angle of declination in the TTL surgical loupes are already set by the factory thus, enabling the medical professionals to conveniently adopt the most ergonomics position without having to worry about adjusting the angle of declination. Due to their closer positioning to the eyes, these loupes are capable of providing wider field of view to the clinicians. This also implies that the peripheral vision of the clinician would be greatly reduced, when he tries to reach for his instruments. One of the major drawbacks of the TTL loupes is that they are comparatively expensive and can be used only by the medical professionals for whom they were prescribed. Most of the clinicians also find it slightly inconvenient to communicate with their patients as they have to remove the TTL loupes each time they interact.

Flip-up loupes

Flip-up loupes are designed in such a way that they are can be accessibly flipped up while carrying out the paper work or any other important task during surgery or dental procedures. It thus also enables the clinicians to communicate with their patients during the procedures. Since these loupes need not be custom made, they are not operator specific. It therefore becomes possible for the clinicians to share it among themselves, if need arises. The angle of declination of the flip-up surgical loupes is not fixed. This implies that it can be modified by each user according to their professional requirements. One more advantage of the flip-up loupes is that in the case of prescription lenses, if the prescription of the clinicians changes, there is no need to send the loupe back to the factory, local optician can easily change the desired prescription. Other than the above given benefits, flip-up loupes do come with certain disadvantages. As compared to their TTL counterparts, flip-up surgical loupes are slightly heavier. Since their angle of declination is not fixed, there are chances of adjusting it incorrectly. In the case of incorrect adjustment of the angle of declination, there is tremendous strain on the eyes and the musculoskeletal system of the clinicians. In addition to all this, the field of view of the flip-up surgical loupes is narrower as compared to their TTL equivalents.

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