cataract

Cataract




Cataract. is a disease of the lens, which is characterized by the presence of opacities within the structure of the eye and ultimately leads to blindness. It is one of the most common causes of vision loss in people over 60 years of age.


Symptoms in adults



In the development of the disease comes to a gradual deterioration of visual acuity, haze appear on a picture (depending on the type of cataract), disturbances in the evaluation of the distance, difficulty in performing daily activities in older adults. There is one or both eyes.


Symptoms in children



Are a bit different than for adults. The most characteristic is the white color of the pupil (leukokoria), in the later stages of the disease may occur strabismus and nystagmus.


Types



The current classifications divide cataracts due to:

a) origin - differentiate acquired and congenital cataract (child), the former is characterized by a gradation of severity of changes - from the initial cataract (clouding occurs at the periphery of the lens) through advanced (haze covers the entire lens, resulting in visual impairment), immature (for blindness), mature (half the total haze), swelling (water absorption and swelling), to liquidate the lens fibers - can lead to inflammation of the tissues inside the eye and irreversible blindness, cataracts shares acquired due to the location of the lesions (cataract layered, nuclear, total, capsularis front, rear capsularis, polar, membranous) and is already present at birth.

b) cause:

- senile cataract (age-related development)

- cataract followed: diabetic, tetany, cortisone (after application of
glucocorticoids), galactose

- traumatic cataract (after injuries, blunt trauma, penetrating trauma, exposure to radiation, work in the mill, the operation of electricity)

- cataract complicated (secondary) - occurs as a complication of other eye diseases (e.g. glaucoma).


Treatment



In the case of congenital cataract should be taken as soon as possible. The only effective cure for this disease is surgical removal of the opaque lens with subsequent placement of a new lens (without the lens does not allow for comfortable vision - there is no accommodation, and remains high hyperopia). The most common method is phacoemulsification (fragmentation and removal of old lenses without disturbing the posterior capsule, intraocular lens implantation). It is also possible to remove the opaque structure without shredding. Instead of implanting intraocular lens, you can also use special contact lenses.

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A Neglected Closed Globe Contusion Managed Using...

Mehul Shah

Specialty:  Ophthalmology
views: 805 comments: 0
5

A neglected closed globe contusion is managed in 2 stages during first sitting membranous cataract removed after one month no glue, no suture foldable acrylic hydrophilic self sustained scleral tuck iol...

Cataract Surgery in an eye with Pseudoexfoliation...

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5

Cataract Surgery in an eye with Pseudoexfoliation and Primary Angle Closure. Dr. Deepak Megur

Yamane Technique

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5

Some tips for this technique in the video:- Mark 2.5mm from the limbus in a 0-180º axis- Use 30g (*brand hidden*) special needle- Keep the first haptic in, before externalizing the second haptic- Don't...

White Hypermature Cataract + 3.5mm Pupil + PEX

views: 7963 comments: 3
4.17

51yo male with a white hypermature cataract + PEX. Pupil size of 3.5mm. I decided to perform a clean no hooks/ring phaco with IOL implantation. No complications, 100% after surgery and personal satisfaction....

Pathologies In Eyes Related To Age

Specialty:  Geriatrics
views: 1607 comments: 0
5

In the video there are presented various conditions related with eyes in the elderly. At the beginning there is a short review of eye anatomy. In the main part of the presentation speaker explains definitions...

Posterior Polar Cataract Surgery

Specialty:  Ophthalmology
views: 4845 comments: 0
5

The video shows a high risk cataract surgery in a pediatric patient. Posterior polar cataract with deficient posterior capsule and more... Mittendorf opacity with anterior hyaloid opacities!! Posterior...

Routine Cataract Surgery

Specialty:  Ophthalmology
views: 3081 comments: 0
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Routine cataract surgery and intraocular lens implantation. The video by Ike Ahmed.

Secondary Lens Implantation with Additional Retinal...

views: 2321 comments: 0
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Video case: secondary lens implantation in both eyes. In one eye this procedure was combined with retinal attachment. A message to take: don't ever make implantation of artificial lens if remnants of...

Routine Cataract Surgery Resident Teaching

views: 3183 comments: 0
5

This video shows a cataract surgery, Video by GimbelLibrary

Routine Cataract Surgery Resident Teaching

views: 3720 comments: 0
5

This video shows a cataract surgery, Video by GimbelLibrary