It is intended as a surgical guidance system to predict lens hardness before cataract surgery. The bcn10 grading system is provided as an a4 sized plastified chart with high resolution photographs. Barraquer has recently published a validation of the nuclear cataract grading system bcn10 which was developed at our clinic.
This article will discuss the three most common types of cataracts nuclear cortical and posterior subcapsular as well as other less common types including anterior subcapsular posterior polar traumatic congenital and polychromatic. While the majority of cataracts in the population are age related or senile cataracts there are many types and causes of cataract. At each visit a video image of the anterior segment was captured with the laser slit lamp and.
Methods 62 volunteers 113 eyes were examined on two occasions. Aims to assess the reproducibility and validity of a new instrument for grading nuclear cataract the laser slit lamp by comparison with an established method of lens grading the lens opacities classification system iii locs iii. A cataract grading system was developed by a panel of experts with the objective of making available a simple system for use with a sl.
A simplified method for grading the presence and severity of different cataract types is needed for field use in assessment of the magnitude of the cataract problem. Cataract type grade 1 grade 2 grade 3 grade 4 nuclear mild moderate pronounced severe cortical by degree of intrapupillary space obscured 10 10 50 50 90 90 posterior subcapsular by degree of posterior capsule obscured 3 30 50 50 nuclear cataracts are graded according to their color and opacification using slit lamp examination. 29 another slit lamp based cataract grading system is the oxford clinical cataract classification and grading system.
Locs iii grading was shown to be highly reproducible for nuclear cataract. This is when the nucleus of the lens actually hardens within the eye. There are different types of cataracts including the nuclear sclerotic cataract.
A cataract is the clouding of the eye s lens due to protein buildup in the body that leads to blurry vision and a loss of sight if not treated. Methods 62 volunteers 113 eyes were examined on two occasions at each visit a video image of the anterior segment was captured with the laser slit lamp. Aims to assess the reproducibility and validity of a new instrument for grading nuclear cataract the laser slit lamp by comparison with an established method of lens grading the lens opacities classification system iii locs iii.
The new bcn 10 grading system consists of frontal and cross sectional slit lamp images of human eye lenses ranging from a completely transparent lens nucleus to a totally black nuclear cataract.
Nuclear cataract grading. Practice grading cataracts below then click here to learn how to do pre op testing and post op evaluations. These 3 types of cataracts cover 99 of the cataracts that you will see in clinic. Nuclear sclerosis ns cortical spoking cs and posterior subcapsular psc. To evaluate a new nuclear cataract grading system which is intended as a surgical guidance system to predict lens hardness before cataract surgery methods.
To evaluate a new nuclear cataract grading system which is intended as a surgical guidance system to predict lens hardness before cataract surgery methods. Nuclear sclerosis ns cortical spoking cs and posterior subcapsular psc. These 3 types of cataracts cover 99 of the cataracts that you will see in clinic.
Practice grading cataracts below then click here to learn how to do pre op testing and post op evaluations.
