Cataract and cataract surgery By Dr. ABDULMAJID ALSHEHAH Ophthalmology consultant Anterior Segment and Uveitis consultant.

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Cataract and cataract surgery By Dr. ABDULMAJID ALSHEHAH Ophthalmology consultant Anterior Segment and Uveitis consultant

Anatomy and physiology of the human lens History of cataract and cataract surgery Current standards for cataract surgery

Anatomy and physiology of the human lens

Cataract

Cataract Epidemiology Age-related cataracts are responsible for 51% of world blindness (WHO) In the United States, age-related lens changes have been reported in : 42% between the ages of 52 and % between the ages 65 and % between the ages of 75 and 85.

Cataract symptoms An opacity in the lens of the eye: 00causes a painless loss of vision 00causes glare 00may change refractive error.

Vision through cataract

In infants, cataract may cause amblyopia failure of normal visual development. Urgent cataract surgery is needed.

Cataract signs Reduced visual acuity Reduced contrast sensitivity. Dark or dim red reflex

Cataract signs Pupil response ?

Sutural cataract

Traumatic cataract

Causes of cataract Age related idiopathic is the most common. result of the cumulative exposure to environmental and other influences such as smoking, UV radiation and elevated blood sugar levels.

Causes of cataract

Cataract treatment Medications ? Surgery

History of cataract surgery

Cataract surgery is one of the oldest surgical procedures known, first documented in the fifth century BC. Cataract Surgery in Antiquity. American Academy of Ophthalmology

ICCE (intra-capsular cataract extraction)

Modern Cataract surgery

ECCE (Extra-Capsular cataract extraction)

ECCE (Extra Capsular cataract extraction)

phacoemulsification

Questions Vedios