The selection of sunglasses can be carried out scientifically from the following aspects:
I. Lens quality
1. UV protection ability: High-quality sunglasses should be able to effectively block ultraviolet rays. Check the markings on the lens. For example, "UV400" indicates that it can block ultraviolet rays with a wavelength of less than 400 nanometers, providing maximum protection for the eyes from ultraviolet damage.
2. Clarity: Looking at objects through the lens should be clear and natural, without deformation, distortion or blurring. You can try on sunglasses and observe the clarity of the surrounding environment and objects.
3. Color: Lenses of different colors have different functions. Gray lenses can evenly absorb various lights and provide a real perception of color; brown lenses can enhance contrast and are suitable for outdoor sports; green lenses can reduce glare and make vision more comfortable.
II. Frame material
1. Comfort: Choose a lightweight and comfortable frame material, such as titanium alloy, TR90, etc. These materials are lightweight and do not easily cause a sense of oppression. They are also relatively comfortable to wear for a long time.
2. Durability: Consider the sturdiness and durability of the frame. Metal frames are usually more sturdy but may be heavier; plastic frames are relatively lightweight, but pay attention to their quality and impact resistance.
III. Suitable for face shape
1. Round face: Angular frames such as square or rectangular ones are suitable for a round face, which can elongate the facial lines and increase the three-dimensional sense.
2. Square face: Round or oval frames can soften the facial contour and make the facial lines more smooth.
3. Long face: Wide-rimmed and large-framed sunglasses can shorten the length of the face and increase the sense of width.
4. Heart-shaped face: A frame that is wider at the bottom and narrower at the top can balance the facial proportions, such as a cat-eye frame.
5. Oval face: Most frames are suitable for an oval face, and you can choose according to your personal preferences.
IV. Try on
1. Trying on is an important step in choosing sunglasses. After putting on sunglasses, feel their comfort, fit and stability. Walk, shake your head, etc. to check whether the sunglasses are easy to slip off.
2. Pay attention to the fit between the sunglasses and the face. There should be no feeling of being too tight or too loose. At the same time, ensure that the field of vision is wide and unobstructed.
Post time: Sep-20-2024