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Pediatric Optometry

Pediatric Optometry . Lecture 1 Ocular embryology Mutez Gharaibeh,MD. 22/10 ……… . 29/10 ……… . 5/11 ………… 12/11 ……… . 19/11 ……… . First 26/11 ……… . 3/12 ………… 10/12 ……… . 17/12 ……… . 24/12 ……… . 31/12 ……… . 7/1 ………… .. Second 14/1 ………… last date to deliver the report

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Pediatric Optometry

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  1. Pediatric Optometry Lecture 1 Ocular embryology Mutez Gharaibeh,MD

  2. 22/10………. • 29/10………. • 5/11………… • 12/11………. • 19/11………. First • 26/11………. • 3/12………… • 10/12………. • 17/12………. • 24/12………. • 31/12………. • 7/1………….. Second • 14/1…………last date to deliver the report • 22/1…………Final

  3. First : 25 marks . • Second : 25 marks . • Report: 10 marks .( How to prescribe eyeglasses in children ). • Final : 40 ( 30+10 marks). • 10 marks : evaluation.

  4. http://www.med.unc.edu/embryo_images/unit-eye/eye_htms/eye016.htmhttp://www.med.unc.edu/embryo_images/unit-eye/eye_htms/eye016.htm almutez@yahoo.com

  5. Weeks 3-4 ROSTRAL CAUDAL Eye fields Anterior neural plate

  6. Prosencephalon (forebrain)

  7. Optic sulcus • Optic groove • Optic vesicles.

  8. Neuroectoderm. - Retina , Iris , Optic nerve. • Surface ectoderm. - Lens. • Mesoderm. - vascular and fibrous coats of the eye.

  9. Optic groove Ectoderm

  10. Lens placode Optic vesicle

  11. Lens vesicle Optic stalk Surface ectoderm Optic cup

  12. Choroidal fissure normally closes by the 6th week.

  13. Optic vesicle Hyaloid artery .

  14. Iris colobomas

  15. Retinal coloboma

  16. Persistent hyaloid artery Mittendorf dot Bergmeister papilla

  17. PHPV • Persistent hyperplastic primary vitreous . Leukocorea

  18. Cornea • Surface epithelium- etoderm. • Inner layers – Neural crest cells.

  19. Optic nerve myelination • Incomplete @ birth. • Complete by 10 weeks of life. • Stops off the optic never head.

  20. Eyelids • Fuse by the beginnig of second trimester ( 13-14weeks of embryogenesis). • Remain adherent until about the 26 week of embryogenesis.

  21. Microphthalmia

  22. Microphthalmia.? • Nanophthalmia.? • Anophthalmia.? • Cryptophthalmia.؟ • Cyclopia.?

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