Senile Cataract

Click here to load reader

Embed Size (px)

description

Senile Cataract by Dr Nikhil Bansal

Transcript of Senile Cataract

  • 1. Senile cataract Presented by:- Dr Nikhil Bansal J.N.M.C.,Wardha

2. General Concepts Almost universal in people over70 years of age. Occurs equally in men andwomen. Considerable genetic influence. Average age of onset is earlierin tropical countries. 3. Types of Senile cataract1. Cortical cataract2. Nuclear or sclerotic cataract 4. Cortical cataract Etio-pathogenesis:- Hydration followedby coagulation of lens proteins in thecortex.Features:- Occurs in following stages :-1. Stage of lamellar separation2. Stage of incipient cataract3. Immature senile cataract4. Mature senile cataract5. Hypermature senile cataract 5. Stage of lamellar separation Demarcation of cortical fibres owingto their separation by fluid. Demonstrated by Slit-lampexamination only. Characteristic grey appearance ofpupil. Changes are reversible. 6. Stage of Incipient cataract Wedge shaped opacities with clearareas in between( Lens striae). Most common in periphery and lowernasal quadrant. Only seen in dilated pupil. Irregularities in refraction, visualdeterioration and polyopia. 7. Immature senile cataract Opacification becomes more diffuseand irregular. Lens is swollen. Iris shadow still visible. Anterior chamber becomes shallow. 8. Mature senile cataract Complete opacification. Whole cortex is involved . Lens appears pearly white in colour. Also known as ripe cataract. 9. Hyper-mature senile cataract Cortex is disintegrated andtransformed into pultaceous material.Usually occurs in two forms:-1. Morgagnian hypermature cataract2. Sclerotic hypermature cataract 10. Morgagnian hypermaturecataract Complete cortex is liquefied andappears milky white in colour. Nucleus settles at the bottom. Calcium deposits may also be seenon the lens capsule. 11. Sclerotic hypermature cataract Disintegrated cortex. Shrunken lens. Wrinkled anterior capsule . Dense white capsular cataract inpupillary area. Deep Anterior-Chamber. Tremulous Iris . 12. Nuclear or Sclerotic cataractEtio-pathogenesis:- Intensification of age related degenerative changes associated with dehydration of and compaction of nucleus.Features:- Hard cataract is formed. Significant increase in water insoluble protein. Lens becomes in-elastic and looses power of accommodation. Changes begin centrally and slowly spread to periphery. Deposition of pigments gives characteristic colour to nucleus. 13. Nuclear or Sclerotic cataract 14. Other types of Nuclear or Scleroticcataractcataracta brunescens cataracta nigra Cataracta rubra 15. Complications of senile cataract1. Phacoanaphylactic uveitis2. Lens induced glaucoma3. Subluxation or dislocation of lens 16. References Parsons diseases of eye Comprehensive ophthalmology:-Khurana and Khurana wikipedia.org 17. THANK-YOU