RostrioA pair of glasses is an optical device that is worn in front of the eyes to correct vision problems.
Glasses can also be used to correct other visual impairments, such as strabismus and presbyopia. Moreover, glasses can serve as eye protection, including sunglasses and safety glasses.
A pair of glasses comprises a frame and lenses.
Types of Glasses
There are several types of glasses:
- Prescription Glasses: Used to correct nearsightedness or farsightedness, enabling clearness vision.
- Reading Glasses: Used to correct presbyopia, a condition that usually develops around age 40.
- Safety Glasses: Worn to protect the eyes from debris and flying particles.
- 3d Glasses: Used to view a stereoscopic film or image in three dimensions.
- Diving Mask: Used for clear underwater vision.
- Welding Glasses: Used to protect the eyes during welding.
- Ski Goggles: Worn while skiing or snowboarding to protect the eyes from reflective sunlight.
- Sunglasses: Glasses that reduce the amount of light that enters the eyes.
Wearing Glasses in Passport Photos
A separate section in the passport photo requirements is dedicated to glasses.
When wearing glasses, the eyes must be fully visible in the photo, with neither the frame nor the lenses obscuring them in any way. Reflections in the glasses or on the frame should be minimized as much as possible.
If it is not possible to prevent disruptive reflections caused by the glasses, the glasses must be removed.
Only glasses that are worn all the time, such as prescription glasses, are allowed in passport photo. Reading glasses, safety glasses, 3d glasses, diving masks, welding glasses, ski goggles, and sunglasses are not permitted.