Saying that sunglasses are an important requirement to protect eye health, Department of Ophthalmology Faculty Member Assoc. Dr. Fadime Nuhoğlu said that protecting from the harmful effects of ultraviolet rays and providing clarity of vision is only possible with the use of correct sunglasses and continued her words as follows:
“Ultraviolet (UV) rays are extremely harmful to living tissues and cause premature aging of the eye. The risk of developing cancer in the eyes, the skin around the eyes and the eyelids, and also in the intraocular tissues that are exposed to excessive UV rays increases. UV rays; It can cause flesh walking into the eye (pterygium), allergic conjunctivitis, damage to the cornea, the transparent layer of the eye, and the formation of cataracts. In addition, it can cause permanent deterioration in the macula in the retina layer at the back of the eye, which is called the yellow spot and where visual acuity is provided at the highest level, and does not improve even with glasses. Therefore, sunglasses increase the clarity of vision, prevent eye strain and also protect our eyes from harmful UV rays from the sun. For this reason, sunglasses should be used not only in summer but also in snowy weather in winter.”
Which Criteria Should We Consider When Choosing Sunglasses?
“Using the wrong sunglasses is more harmful than not wearing any sunglasses at all. Not all dark-tinted glasses filter UV rays. In order to protect itself from UV rays, the eye has protection mechanisms such as squinting the eyelids and reducing the pupil. Incorrectly chosen sunglasses cause more damage to the eye by preventing these mechanisms from working,” said Assoc. Dr. Fadime Nuhoğlu summarized what should be considered when choosing sunglasses as follows:
● Sunglasses must comply with international norms (EN, ANSI, TSE).
● It should not break easily and be durable. Sunglasses may break during sports or other activities, causing eye damage.
● It must be suitable for our intended use (in the snow, while driving or at sea). It should be so dark that we can see the traffic lights that do not reduce our clarity of vision while driving.
● Designs that prevent UV from reaching the eye should be preferred due to the size of the frame and the thickness of the handles. Frames with a thickness that will prevent the entry of UV should be preferred from the sides that do not touch the cheeks that rise above the eyebrows.
● The UV filter feature of the glasses should not be below 70%, above 99% is the healthiest.
● The presence of a polarized filter on the glass does not indicate that the glass has UV filtering properties. The polarizing filter increases the clarity of vision by keeping only the rays reflected from the surface. This feature is useful for drivers and sailors, but is not recommended for pilots using LED displays. Because polarized filter glasses prevent the LED screens from being seen.