luz azul

BLUE LIGHT

With the increasing use of electronic media, the debate about the benefits and harms of blue light has intensified.

The blue light

Generated by the sun and electronic media, blue light is everywhere. But with the increasing use of electronic media, the debate about the benefits and harms of blue light has intensified.

The benefits

Blue light has always been part of our lives and has many health benefits – this component of blue light is called natural blue light.

It is responsible for regulating our “biological clock,” controlling the rhythm of sleep-wake and guiding when we should sleep or when we should be awake.

It can also increase brain activity, improving memory, mood and alertness.

The negative impacts

With the use of artificial blue light sources such as LED / fluorescent lights, television screens, computers, smartphones or tablets, the overexposure to artificial blue light has created concern for the negative impact it can have on our eyes.

Among other already proven consequences such as digital eye fatigue and dry eye syndrome, it is believed that may be responsible for retinal damage, increased risk of age-related macular degeneration (AMD) or cataract formation.

svc

COMPUTER VISION SYNDROME

Studies indicate that Computer Vision Syndrome affects about 90% of people who spend three hours or more at the computer.

What is CVS – Computer Vision Syndrome?

The popularization of the use of electronic display equipment, such as computers, mobile phones, smartphones or tablets, has gradually come to demand a greater visual effort from its users.

The visual impairments and their symptoms related to this misuse were referred by specialists as Computer Vision Syndrome (CVS ) .

According to the US National Institute for Occupational Safety and Health, CVS affects about 90% of people who spend three hours or more at the computer, and female users have a higher incidence of symptoms.

What are the factors that can contribute to the development of CVS ?

In addition to factors related to environmental conditions (lighting and humidity) or ergonomics (posture, accessibility, among others), the following risk factors are also considered:

  • poorly corrected refractive states
  • accommodation disorders
  • eye disorders such as allergies or dry eye syndrome
  • contact lens wear
  • general health and eye changes

What are the symptoms?

According to published studies, the biggest contribution to CVS symptoms is dry eye. However, signs and symptoms of CVS also include:

  • eye irritation
  • ocular hyperemia (redness)
  • eye itching
  • visual fatigue
  • photophobia (light sensitivity)
  • sensation of heaviness in the eyelids or frontal region
  • headaches
  • pain in the shoulders, spine, legs, etc

How to prevent?

Eye therapies should be combined with the adjustment of ergonomic conditions in the workplace

It is recommended that for every 20 minutes in front of a screen you should focus on an object at 20 meters for 20 seconds (20-20-20 rule). Take this time to stretch your legs, shoulders and neck!

Proper lighting should be provided, and the use of anti-glare filters, ergonomic screen positioning and regular pauses can help improve visual comfort. The use of lubricating eye drops and eyeglasses with proper computer filters will also alleviate the symptoms of CVS .

Presbiopia

PRESBYOPIA

Presbyopia arises around 45 years of age and the main symptom is the need to lengthen the reading distance.

What is presbyopia?

Presbyopia is related to the loss of the accommodative power of the eye, which causes the deterioration of the ability to focus and makes the near-blurred images.

What are the symptoms?

These changes appear around 45 years of age and the main symptom is the need to lengthen the reading distance.

With the loss of the accommodative power of the eye, it is difficult to focus on the objects that are nearby, causing the symptoms of presbyopia. Most people begin to experience this type of refractive error when they are over 40 years old, however, myopic people can see more closely around longer.

What treatments are there for presbyopia?

The most common ways to correct these vision changes are to wear glasses with bifocal lenses or use progressive lenses. 

HIPERMETROPIA

HYPEROPIA

Hyperopia is a visual change that causes images to be blurred when looking closely.

What is hyperopia?

Hyperopia, or far-sightedness, is a refractive error caused by focal point shifting that causes images to be blurred when looking at near, but not far away. It is the opposite of myopia.

What are the symptoms?

In addition to the difficulty of seeing at close range, warning signs include eye fatigue, headache and squinting.

In most people, hypermetrope is a genetically inherited trait that becomes symptomatic in childhood or adolescence.

This is an easily detected condition and can be diagnosed on a routine visual examination.

What treatments are available for farsightedness?

Hyperopia can easily be corrected by wearing glasses or contact lenses. If you are over 18, there is also surgical option available.

miopia

MYOPIA

Myopia is a visual change that causes images to be blurred when we look into the distance.

What is myopia?

Myopia, or short-sightedness, is a refractive error caused by focal point shifting that causes images to be blurred when looking at a distance.

What are the symptoms?

In addition to the difficulty in seeing from afar, warning signs include eye fatigue, headaches and squinting.

In most people, being short-sighted is a genetically inherited trait that becomes symptomatic in childhood or adolescence.

Seeing blurred in the distance may be the only reality your child knows and therefore does not identify it as a problem. Be aware if your child gets too close to books or television, complains of headaches, or gets irritated after a few minutes of study… This may indicate the need for visual correction.

This is an easily detected condition and can be diagnosed on a routine visual examination.

What treatments are there for myopia?

Myopia can easily be corrected by wearing glasses or contact lenses. If you are over 18, there is also surgical option available.

Produtos visuais

ASTIGMATISM

The consequence of astigmatism is the perception of distorted and blurred images, both far and near.

What is astigmatism?

Astigmatism is a visual change caused by an irregularity of the refraction of light in the cornea or lens in a given two-dimensional plane.

The consequence of this defect is the perception of distorted and blurred images, both far and near.

What are the symptoms? How do I know if I suffer from astigmatism?

Apart from image distortion, the most common symptoms of astigmatism also include eye fatigue and frontal headaches.

Astigmatism is an easily detected condition and can be diagnosed on a routine visual examination.

What are the treatments for astigmatism?

Astigmatism can easily be corrected by wearing glasses or contact lenses. If you are over 18, there is also surgical option available.