Eye conditions

30/09/2013

26/09/2013

Age-Related Macular Degeneration (ARMD)

Age-related macular degeneration or ARMD is a disease that affects the central area of the retina,  the macula. As its name suggests, it is a degenerative disease that progresses with age. What is age-related macular degeneration? Age-related macular degeneration affects the central area of the retina, the macula, and causes central vision problems, difficulty recognizing […]

21/03/2017

Allergic conjunctivitis

What is allergic conjunctivitis? Allergic conjunctivitis is an inflammation of the conjunctiva caused by a reaction to an allergen (any substance that produces an allergic reaction). Exposure of the eyes to these allergens releases a substance known as histamine which causes the blood vessels in the conjunctiva to become inflamed. Symptoms Allergic conjunctivitis can have […]

28/11/2013

Amblyopia or lazy eye syndrome

ALL YOU NEED TO KNOW ABOUT… Amblyopia or lazy eye syndrome is caused by an insufficient development in visual ability in one eye during the first years of life. It might be caused by a strabismus, a high difference in refraction power between both eyes or by any cause that prevents the visual stimulus from properly […]

31/08/2017

Astigmatism

What is astigmatism? Astigmatism is a defect in the curvature of the cornea (the dome-like transparent structure which covers the iris and the pupil) or in the shape of the eye lens. Normally, the cornea and the lens are regular and are curved in the same shape throughout. This helps to focus light clearly onto […]

26/04/2018

Blepharitis

What is blepharitis? Blepharitis is a pathology that affects the eyelids causing inflammation on the edge of the eyelids and that can lead to eye irritation and redness. There are different types of blepharitis: Anterior: Affects the base of the eyelid where the eyelashes are located. Posterior: It is caused because of a dysfunction of […]

15/01/2014

Cataract

What is a cataract? The lens, located behind the iris and the pupil, enables us to focus objects. It can also change shape depending on whether these objects are near or distant. Cataract is when the lens of the eye becomes clouded and opaque. When we are born, the lens is transparent. The lens undergoes […]

09/11/2016

Central serous chorioretinopathy

ALL YOU NEED TO KNOW ABOUT… It is the fourth retinal disease that threats our vision. If you experience blurred vision, perception of a central spot, straight lines that seem bent or you have troubles in focusing when reading, you should go to the ophthalmologist in order to be diagnosed. It is more frequent in young […]

05/02/2014

Childhood myopia

How can myopia affect children? Myopia is a refractive defect where the images are focused in front of the retina rather than on it, causing blurred vision. Unlike hyperopia, this defect takes place either because the eyeball is too long or, more rarely, because the optical strength of the cornea and the lens are larger than necessary . There are also […]

09/01/2014

Conjunctivitis

Conjunctivitis is the inflammation of the conjunctiva, the mucous membrane that covers the inside part of the eyelids to the anterior part of the eye, up to the cornea. Common symptoms are redness, eye watering and also others, depending on the etiology (morning sticky eyes in infectious cases, enlarged lymph nodes in the viral cases, […]

26/09/2013

Contact Lens

19/06/2019

Corneal Dystrophies

What are corneal dystrophies? Corneal dystrophies are a group of genetic disorders most often found in the cornea (the clear front surface of the eye that lies directly in front of the iris and pupil and when it’s healthy, is like a transparent crystal). Fortunately, most of them are disorders without any visual consequence and […]

06/10/2017

Corneal Ulcer

What is a corneal ulcer? A corneal ulcer is an open wound on the cornea, the structure that covers the iris and the pupil in a similar way to the crystal covers a watch face. Corneal ulcers are normally caused by eye infections, although extreme eye dryness or other eye disorders may also cause it. […]

06/10/2017

Corneal injuries: lacerations and abrasions

CORNEAL LACERATION What is a corneal laceration? A corneal laceration is a cut in the cornea, usually caused by the contact of some sharp object with the eye. It can also be caused by the impact of an object with some force on the eye, like a metallic tool. For this reason, it is important […]

13/11/2013

Dacryocystitis

What is a dacryocystitis? Dacryocystitis is an inflammation usually caused by a lachrymal sac infection, arising from an obstruction of the tear duct. What are its symptoms? Pain, redness and edema at the level of the internal side of the lower eyelid (under the lachrymal sac), tearing, discharges, occasional or recurrent fever. What are its […]

22/01/2018

Diabetic retinopathy

What is diabetic retinopathy? Diabetic retinopathy is a vascular disease secondary to diabetes. Diabetes is a metabolic disease with a growing prevalence in our society that damages the small blood vessels of the retina due to the metabolic decompensation that it causes. The retina is a thin layer of light-sensitive tissue that lines the back […]

13/01/2017

Double vision or diplopia

What is diplopia? Diplopia is a vision alteration consisting in the perception of double vision. Therefore, the patient usually goes to the consultation reporting the fact of seeing double. Double vision may be: horizontal, when overlapping images stand side by side; vertical, when images stand one on top of the other; or oblique, when images overlap […]

09/01/2014

Dry eye syndrome

Dry eye or dry eye syndrome is a common eye disorder that occurs when there is a lack of lubrication and moistness of the eye surface (cornea, conjunctiva and tear film). This happens because the eye does not produce enough tears to maintain a good hydration or the tears are of poor quality. This syndrome, […]

28/01/2014

Ectropion

What is an ectropion? An ectropion is an eyelid malposition consisting in the outward folding of the eyelid so it does not sufficiently rest on the eye, thus leaving it exposed and unprotected. Signs and symptoms Eye irritation, redness, tearing, photophobia and a foreign body sensation in the eye. Causes The most common cause is […]

05/04/2018

Endoftalmitis

La endoftalmitis es la presencia de una bacteria o un hongo intraocular que causa una infección de los fluidos intraoculares. Cualquier tipo de cirugía puede complicarse y provocar una endoftalmitis.

28/01/2014

Entropion

What is an entropion? An entropion is the inward folding of the eyelid that makes the eyelashes rub against the eye. Signs and symptoms Ocular irritation, redness, tearing, photophobia and a foreign body sensation in the eye. Causes It is normally caused by the laxity of tissue that comes with age, although there are many […]

22/11/2016

Eyelid and orbital tumors

WHAT YOU NEED TO KNOW ABOUT EYELID AND ORBITAL TUMORS IN A NUTSHELL… Eyelid tumors are those tumors that appear in the eyelids in the form of small injuries, pimples or lumps that usually don’t cause symptoms, although in some cases they may itch, sting or even bleed and produce scabs. Orbital tumors are those […]

28/01/2014

Eyelid malpositions

ALL YOU NEED TO KNOW ABOUT… Eyelid malpositions are defects in eyelid positionthat usually appear later in life. An eyelid rolled inward leads to an entropion, while an eyelid rolled outward causes an ectropion. Ectropion leaves the conjunctiva exposed, thus turning it red and potentially leading to its keratinization. Entropion makes eyelashes rub against the […]

28/11/2013

Glaucoma

What is glaucoma and how common is it? Glaucoma is a major disease given its frequency and potential seriousness. Approximately 1.5-2% of over 40s suffer from the condition and this rate increases with age. It is the second most common cause of blindness in this country. Nevertheless, this blindness can be avoided if diagnosed and […]

28/11/2013

Hypermetropia in childhood

It is a refractive defect in which the image is focused behind the retina, and the vision is blurred. The cause may be in the eyeball or that the optical power of the cornea and the lens is less than the necessary. There is a certain hereditary component. The majority of children are hyperopic at birth […]

30/09/2013

Hyperopia

People suffering from hyperopia (also known as hypermetropia) have a good long distance vision, but may have problems in reading distance. The hypermetropic eye is quite shorter and focuses the objects behind the retina, which makes short vision more difficult, but accomplishes an excellent far distance vision. Thanks to the accommodation of the lens, children […]

09/02/2017

Hypertensive retinopathy

 What is hypertensive retinopathy? Hypertensive retinopathy is a condition in which the blood vessels in the eye are damaged as a result of high blood pressure. This can affect blood flow to the retina, the lining at the back of the eye which acts like the film in a camera. If left untreated, this […]

21/03/2017

Infectious conjunctivitis

What is infectious conjunctivitis? Conjunctivitis is an inflammation of the conjunctiva, which is the mucous membrane that covers the inside of the eyelids. It normally affects both eyes at the same time, although it can sometimes begin in one eye and then transfer to the other after a day or two. The condition in such […]

11/05/2018

Juvenile macular degeneration

Macular degenerations are retinal diseases of genetic origin that cause an early degeneration of the macula. It affects adults, young people or even children, it all depends on the severity of the damage caused by this genetic anomaly. The macula deteriorates and collapses affecting vision and causing a loss of vision that may be important […]

28/05/2018

Keratoconus

Keratoconus appears when the corneal tissue deteriorates, modifying its usual spherical shape by a cone shape. As the shape of the cornea is altered, the vision becomes distorted. The cornea is one of the most important parts of the eye. Light enters the eye through the cornea and it focuses the light rays so that […]

11/10/2016

Leber Hereditary Optic Neuropathy

What is Leber Hereditary Optic Neuropathy? Leber Hereditary Optic Neuropathy (LHON), also known as Leber Optic Atrophy, was named after Doctor Theodore Leber, who described in 1871 a characteristic pattern of sudden vision loss in young men with family history of blindness. It is the most common hereditary optic neuropathy, it is caused by a […]

16/12/2013

Macular epiretinal membrane

Symptoms Macular epiretinal membrane causes a slow and progressive visual loss lasting months or years, and affecting one or both eyes. Generally, it causes image distortion, and undulation of straight lines. Numbers and letters can appear to be in another line, and perception of colors may be decreased. Signs The typical sign is a  semitransparent […]

16/12/2013

Macular hole

Symptoms A macular hole causes loss of central vision and image distortion in the eye. The distortion is manifested as a bending or waviness of straight lines or objects can begin to look bent or wavy and numbers and letters jump out of line. Other symptoms manifested by patients are a central grey spot or […]

30/09/2013

Myopia

Myopia (also known as near-sightedness or short-sightedness) is a visual defect suffered by myopic or short-sighted people, who can clearly see close objects, but can’t properly focus far distance ones. The myopic eye focuses objects in front of the retina, and this is either caused by a relative increase of the eye length (axial myopia), which […]

10/01/2017

Occlusions or obstructions of veins and arteries in the retina

WHAT DO YOU NEED TO KNOW ABOUT… Occlusions or obstructions of veins and arteries in the retina prevent the flow of blood through these vessels causing painless vision loss. A blocked artery will cause a lack of irrigation of the tissue of the retina, which will not receive adequate supply of oxygen (ischemia, heart attack), […]

07/03/2019

Optic neuritis in children and adults

What is optic neuritis? Optic neuritis is an inflammation of the optical nerve. This inflammation may be located at the nerve’s front side (papillitis) or at the rear side of it (retrobulbar optic neuritis). This is the optic nerve disease that most usually causes a sudden vision loss in young patients. Before venturing into optic […]

12/09/2018

Orbital cellulitis

Orbital cellulitis is an infection of the tissues of the orbit which are located at the back of the orbital septum. It can affect the eyelid, cheeks and eyebrows. The infection can be caused by local injuries (insect bites or penetrating eye injuries) or by the spread of contiguous facial infections. This infection can become […]

15/02/2018

Pediatric cataracts

Many people believe that cataracts only affect older people. However, children can also suffer them. Both the pediatrict cataract and the one that derives from aging, consist of a clounding of the natural crystalline lens of the eye, which can cause blurred vision and even blindness. In adults, cataracts usually appear many years after the […]

12/12/2017

Presbyopia

19/08/2016

Pterygium

What is a pterygium? A pterygium is a red and white abnormal growth of the conjunctiva that invades the cornea, most frequently on the side which is closer to the nose, although it can also appear on the external side of the eye, and in both eyes. It is painless and symptoms vary depending on […]

10/12/2013

Ptosis

What is it? It is a drooping or falling of the upper eyelid, and may occlude the pupil and interfere in vision. Causes It is usually caused by a malfunction of the eyelid levator muscle. This may be caused by: Aponeurotic causes. It is the most common cause and it is due to the own aging of tissues, […]

26/09/2013

Retinal detachment

What is a retinal detachment? The retina is a light sensitive eye layer located at the back of the eye. A retinal detachment is simply a separation of the retina from the wall of the eye to which it is normally attached. What are the risk factors for retinal detachment? Retinal detachment affects, approximately, one […]

28/08/2018

Secondary cataract

Secondary cataract or after-cataract is an opacification of the posterior capsule of the lens that may appear after a few months or years of having undergone a cataract extraction. This prevents the passage of light to the retina and leads to loss of vision. Up to 20% of patients who have undergone a cataract extraction […]

13/11/2013

Strabismus in childhood

What is strabismus in childhood? It is an alteration of the alignment of the eyes (both eyes don’t look simultaneously at the same point).  Ocular deviation can be horizontal (in or out) or can be vertical (up or down) and can appear at any age and for different reasons. The strabismus can be constants (all day) or variable (the […]

10/12/2013

Thyroid Associated Orbitopathy

What is thyroid associated orbitopathy? Thyroid associated orbitopathy occurs when an autoimmune thyroid condition affects the tissue surrounding the eyes. It is normally related to hyperthyroidism (over active thyroid) but it can also occur in patients with hypothyroidism (under active thyroid) or even those without a thyroid condition. One characteristic of this disease is that, despite […]

04/08/2016

Uveitis

What is uveitis? The term uveitis refers to a range of inflammatory conditions that affect the middle layer of the eye known as uvea. The anterior part of the uvea is called the iris, the coloured part of the eye that controls the light entering the eye. Behind the iris lies the ciliary body, a […]

03/10/2013

Vision correction surgery

What is vision correction surgery? Vision correction surgery, or refractive surgery, is a type of ophthalmology dedicated to the study and treatment of myopia, hyperopia, astigmatism and presbyopia. The main objective is to improve your eyesight in order to avoid being dependent spectacles or contact lenses. Different surgical techniques have evolved to correct ocular refraction […]

07/11/2016

Vitreous detachment

ALL YOU NEED TO KNOW ABOUT… If floaters are small, translucent and isolated, and provided they always have the same shape and pattern, there is nothing to worry about. Scheduling an ophthalmology examination is nonetheless recommended. If floaters appear abruptly and in a great number, sometimes in a manner described as a spider web that […]

02/12/2016

Vitreous hemorrhage

WHAT YOU NEED TO KNOW ABOUT… Vitreous hemorrhage has variable symptoms depending on the amount of bleeding: vision of spots that are suspended in vision (floaters), blurred vision or complete and sudden loss of vision. It may be caused by multiple causes, such as eye traumas and even underlying conditions such as diabetic retinopathy. It […]

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Telephone number +34 93 736 34 40

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Clínica Bonanova Surgical Center

Telephone number 934 34 09 25

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Clinica Bonanova Tests and Treatments

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