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The china hand tools supplier believes that the air exhaled from the upper edge of the mask and the temperature change between the inside and outside of the lens are the reasons for the fog in the goggles.

Summary of Fogging Causes and Anti-Fogging Skills of Goggles (Part 2)

Mar. 17 , 2020

2. Anti-fog lens treatment

Antifog coated lens

● Hu Jianmei and others pointed out that evenly applying the anti-fog agent for swimming goggles to the inner surface of the goggles lens, and leaving it to dry after wearing, can have an anti-fog effect.

Most of the anti-fogging agents are nozzle-type designs. If the anti-fogging agent is sprayed directly on the inner layer of the lens and worn after drying, although there is an anti-fogging effect, the water stains on the lens surface are mostly halo-like, and the clarity is reduced, affecting the field of vision and visibility.

● If you follow the instructions for use of goggles defogging agent: first half an hour before using the goggles, rinse the inside of the lens with cold water, drain the water from the lens to make the lens moist; spray the anti-fog agent evenly against the lens, wait In 8 minutes, the anti-fog agent in the lens is half-dry. Take cold water and shake it in the lens, so that the anti-fog agent is evenly attached to the lens, and then drain the water to dry the beads. Fog effect, but long preparation time and low efficiency.

● Anti-fogging agents are effective in anti-fogging of goggles, and because anti-fogging agents are expensive and not easily available, they are rarely used in clinical practice.

Detergent supplies wipe lenses

● You can choose detergents commonly used in daily life, such as dish soap, soapy water, shampoo, shower gel, hand soap, etc.

Method: Take an appropriate amount of detergent with cotton swabs or gauze and evenly apply it to the inner layer of the lens, let it dry for later use; before wearing goggles, use gauze to wipe away the detergent that has been applied and dried. In the operation of wearing goggles, the residual detergent will form a transparent film when it encounters water vapor, which can play a role in destroying the surface tension of water droplets, so that the goggles are not prone to fog.

Each detergent contains a surfactant, which can reduce the surface tension of water droplets, but the surfactants contained in different detergents have different effects.

● This kind of method needs to wait for the detergent to dry and wipe before using it. The preparation time is long and the anti-fog effect cannot be obtained immediately, but the detergent is easy to obtain and the cost is low.

Safety Goggles

Safety Goggles

Iodine coated lenses

● Apply the iodophor evenly on the inner layer of the protective glasses, and wear it after the iodophor is dry. This method is also commonly used for antifogging of laparoscopic lenses in the operating room.

The principle is that after the iodine is applied to the surface, the ion iodine becomes molecular iodine, which exerts an oxidation effect to form a protective film. At the same time, studies have confirmed that aqueous solutions containing iodine can be used as goggle disinfectants, and do not affect the life and use of goggles.

● This method has good anti-fog effect, iodophor is a medical disinfectant, easy to obtain, and widely used in clinical practice.

Dispensing lenses with disposable hand sanitizer

● Before wearing, apply a thin layer of disposable hand sanitizer evenly on the inner layer of the goggles, wait for the sanitizer to dry, and then wipe the dry sanitizer with gauze.

● This method can prevent the lens from fogging, but the disposable hand sanitizer contains ethanol. During the wearing process, the wearer is irritated by the smell of ethanol and has poor comfort.

Automotive glass water painting lens

● Before wearing, apply the car glass water evenly on the inner layer of the goggles, wait for the glass water to dry, and wear it directly.

● This method can prevent the lens from fogging, but the glass water also contains the ethanol component, which causes poor wearer comfort.

Automotive glass water painting lens

● Before wearing, apply the car glass water evenly on the inner layer of the goggles, wait for the glass water to dry, and wear it directly.

● This method can prevent the lens from fogging, but the glass water also contains the ethanol component, which causes poor wearer comfort.

Vaseline or liquid paraffin coated lenses

● Before wearing, evenly apply a small amount of vaseline or liquid paraffin to the inner layer of the goggles to ensure that the lens surface is covered with a thin layer.

● In this method, vaseline is a semi-liquid mixture, which is smeared on the lens, which affects the field of vision and visibility. Although liquid paraffin is easy to obtain and simple to operate, it does not rule out that oily ingredients have other damage to the goggles material, and are rarely used in clinical practice.

Conclusion:

The china hand tools supplier believes that the air exhaled from the upper edge of the mask and the temperature change between the inside and outside of the lens are the reasons for the fog in the goggles. In clinical work, everyone also summarized a large number of anti-fog techniques. Each method has advantages and disadvantages. According to the needs of actual operations, more appropriate methods can be taken to prevent fogging of the goggles, to ensure smooth operation of medical staff and avoid operation Pollution in the environment can alleviate the psychological pressure of medical staff in their work.


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