Ophthalmology Lens Disorders For MBBS Class 2016
Ophthalmology For MBBS Class 2016 Lens Disorders
Learning objectives: Lens:Anatomy and Biochemistry Cataract Concept Classification Diagnosis Treatment-Surgery Intraocular Lens Development of anti-cataract drugs Ectopia Lentis
Learning objectives: . Lens: Anatomy and Biochemistry . . . Cataract Concept Classification Diagnosis Treatment - Surgery Intraocular Lens Development of anti-cataract drugs . Ectopia Lentis
Superior rectus m _Ora serata Ciliary body 感光系统 Lens:Anatomy .Posterior chamber Retina. Anterior Chamber Vitreoun Body Fovea centra 屈光系统 inferior rectus
Lens: Anatomy
Glycogen Glucose-6-PO Qehydrogenase Glucose Glucose-6-PO 6-Phosphogluconate NADPH Lens: Biochemistry Sorbitol Hexose Sorbitol Anaerobic Monophosphate Pathway Glycolysis Shunt NAD Normally utilizes Utilizes about Utilizes about 5% about 5%of 78%of glucose of glucose glucose 、NADH Fructokinase Fructose Fructose-6-PO Pentose-PO Phosphofructokinase Fructose-1-6-di-PO Lactic Lactate Pyruvate Krebs Citric Acid Cycle Dehydrogenase (Tricarboxylic Acid Cycle) NAD NADH
Lens: Biochemistry
Definition of Cataract: "Any congenital or acquired opacity in the lens capsule or substance,irrespective of the effect on vision,is a cataract." Cataract is a relative severe disease which can cause blindness.It may scare the patients.So,it is better not use it in the case that the lens opacity would NOT affect the vision of the patients. Use“lens opacity”instead. Cerulean Cataract
Definition of Cataract: Cataract is a relative severe disease which can cause blindness. It may scare the patients. So, it is better not use it in the case that the lens opacity would NOT affect the vision of the patients. Use “lens opacity” instead. “Any congenital or acquired opacity in the lens capsule or substance, irrespective of the effect on vision, is a cataract.” Cerulean Cataract
Cbafa:clinical observation and pathology.It consists of several subgroups based on the etiology or mechanisms.For example, Congenital ~may or may not be genetic. Age-related ~seen in most of the cases. Metabolic ~like diabetic and galactosemic Traumatic ~ Radiation ~ Nutrition deficient ~
Classification of Cataract: Cataract is a name based on clinical observation and pathology. It consists of several subgroups based on the etiology or mechanisms. For example, Congenital ~: may or may not be genetic. Age-related ~: seen in most of the cases. Metabolic ~: like diabetic and galactosemic ~ Traumatic ~: Radiation ~: Nutrition deficient ~: … …
Causes of Cataracts: It's not precisely understood why people get cataracts. Aging is a known risk factor (ARC) Others include: Smoking Excessive use of alcohol Diabetes Trauma to the eyes Extended use of corticosteroids Prolonged radiation or sun exposure
It’s not precisely understood why people get cataracts. Aging is a known risk factor (ARC). Others include: Smoking Excessive use of alcohol Diabetes Trauma to the eyes Extended use of corticosteroids Prolonged radiation or sun exposure Causes of Cataracts:
Cataract A.P.~ P.P~ Traumatic
Cataract A.P. ~ P.P. ~ Traumatic ~
Cataract:
Cataract:
Cataracts in systemic diseases DM Myotonic Dystrophy Atonic Dermatitis
Cataracts in systemic diseases DM Myotonic Dystrophy Atonic Dermatitis
