How to take care of your visual health from a scientific perspective

by time news

2024-10-02 07:10:29

Sight is one of the most important senses for humans, as it allows us to interact efficiently with the world around us. However, eye care is often overlooked, which can lead to vision problems that impact your quality of life. Eye care is essential not only to treat eye diseases, but also to prevent them.

What is eye care?

THE eye care It is the set of medical procedures and treatments aimed at the maintenance, prevention, diagnosis and treatment of problems related to the eyes and vision. This area of ​​medicine includes a wide range of services, ranging from routine eye exams to complex surgeries. Ophthalmology not only focuses on the correction of visual defects, but also on the treatment of eye diseases such as cataracts, glaucoma, diabetic retinopathy, among others.

Ophthalmologists are specialists responsible for visual health. They have the ability to diagnose eye diseases, perform surgeries, and prescribe treatments that improve the quality of vision or preserve ocular function.

1. The visual examination: the cornerstone of ophthalmic care

Him visual examination Regular eye care is one of the most important preventive measures to maintain eye health. During this exam, the ophthalmologist evaluates various aspects of vision, such as visual acuity, ability to focus, alignment of the eyes, and ability to detect colors. A comprehensive eye exam also includes evaluating the internal health of the eye, which can reveal conditions such as glaucoma, macular degeneration, or retinal damage.

How often should we have an eye exam?

The frequency of eye exams varies depending on age and risk factors. For most people with no known eye problems, an exam every two years is recommended. However, those with a family history of eye diseases, such as glaucoma, or people with systemic conditions such as diabetes, should have more frequent checkups, usually once a year.

2. Vision correction: glasses, contact lenses and refractive surgery

One of the most common problems treated by eye care is refraction. Refractive errors, such as nearsightedness, farsightedness, astigmatism, and presbyopia, are alterations in the way light enters and focuses in the eye, causing blurred vision. Fortunately, these problems can be easily corrected with glasses (or glasses), contact lenses or other refractive surgery.

A) Glasses and contact lenses

Los eyeglasses and the contact lenses They are non-invasive and common solutions for correcting vision. Glasses have lenses that properly refract light towards the retina, improving visual clarity. Contact lenses, which are applied directly to the cornea, also perform this function, but they offer a larger peripheral field of vision and are more aesthetically pleasing for some people.

B) Refractive surgery

For those who prefer permanent vision correction, refractive surgery interventions They are an effective option. The best known is the LASIK surgerywhich uses a laser to reshape the cornea and correct the focusing of light. Other techniques, such as PRK or the SMILEthey are also available to correct refractive errors in people with thinner corneas or specific conditions.

3. Common eye diseases: prevention and treatment

In addition to refractive problems, ophthalmology deals with a variety of eye diseases which can seriously impair vision if not treated in time. Some of the most common include:

A) It falls

Las cataract They are the leading cause of reversible blindness in the world. They occur when the lens of the eye becomes cloudy, making it difficult for light to pass to the retina. This alteration usually appears with aging, but can also be the result of injuries or systemic diseases. The treatment consists of cataract surgerywhere the cloudy crystalline lens is replaced by an artificial intraocular lens.

B) Glaucoma

Him glaucoma It is an eye disease that affects the optic nerve, usually due to increased intraocular pressure. If left untreated, it can cause irreversible damage and lead to blindness. Treatment involves the use of eye drops to reduce eye pressure, although in more advanced cases surgery may be necessary.

C) Age-related macular degeneration (AMD)

THE macular degeneration It is a disease that affects the macula, the central part of the retina responsible for detailed vision. This disorder is common in people over the age of 60 and can cause loss of central vision. Although there is no cure, there are treatments such as antiangiogenic therapy, which can slow its progression.

D) diabetic retinopathy

THE diabetic retinopathy It is an ocular complication resulting from diabetes, which causes damage to the blood vessels of the retina. Without proper treatment, this disease can lead to complete loss of vision. Adequate blood sugar control and regular eye exams are essential to prevent this condition.

4. Emerging technologies in eye care

Ophthalmology has been one of the most technologically advanced branches of medicine. Today, innovations allow for more accurate diagnoses and less invasive treatments. Some of the emerging technologies in this field include:

A) Optical coherence tomography (OCT)

THE OCT is an imaging technology that allows you to view the retina in great detail, essential for the early diagnosis of diseases such as glaucoma, macular degeneration and diabetic retinopathy. This technique is quick, painless and non-invasive and provides high-resolution images of the inner layers of the eye.

B) Gene therapy

THE gene therapy is emerging as a revolutionary option for the treatment of hereditary eye diseases, such as retinitis pigmentosa. This treatment involves introducing corrective genes into the cells of the eye to restore or improve visual function.

C) Multifocal intraocular lenses

In cataract surgeries, advanced intraocular lenses, such as multifocal lensesthey allow you to simultaneously correct distance and near vision problems, improving post-operative visual quality and eliminating the need for glasses.

5. Tips for caring for visual health

Proper eye care starts with prevention. Some tips for maintaining good eye health include:

  • Sun protection: Wearing sunglasses with UV protection is essential to protect your eyes from the harmful effects of ultraviolet rays.
  • Rest your eyes: With the increase in time we spend in front of screens, it is important to follow the 20-20-20 rule– Every 20 minutes, look at something 20 feet (6 meters) away for at least 20 seconds to reduce eye strain.
  • eat healthy: A diet rich in antioxidants, vitamin C, vitamin E and zinc can help prevent age-related eye diseases.
  • Avoid tobacco: Smoking increases the risk of developing eye diseases, such as cataracts and macular degeneration.

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