Truly suitable sunglasses depend not only on appearance but also on UV protection, lens material, face shape fit, and everyday usage scenarios.

Mydriatic agents work by acting on the iris muscles, causing the pupil to dilate; their effects generally wear off gradually within 4 to 24 hours. The duration of the effect varies depending on individual differences, eye health, and the type and concentration of the medication used.

Do you experience stinging, tearing, or involuntary squinting in bright light? Have you ever had headaches triggered or worsened by light, forcing you to seek refuge in dim lighting? If so, it may be related to photophobia.

Trifocal lenses integrate three different refractive powers into a single lens, essentially combining distance glasses, office glasses, and reading glasses into one, meeting the needs of multi-distance vision.

Bifocal lenses are a classic multifocal solution in optometry, designed to simultaneously address the wearer's need to switch between distance vision and near work (such as reading) through a structured design of a single lens.

Can eyes get sunburned? The answer is yes. Eyes can indeed be "sunburned," and this risk is often underestimated.

Photokeratitis (also known as ultraviolet keratitis, UV keratitis) is an acute, reversible eye surface injury caused by excessive exposure of the cornea to ultraviolet (UV) radiation in a short period of time.

Computer glasses are functional eyeglasses customized according to individual vision prescriptions and specifically optimized for computer and close-range screen use.