CONTENTS 7 



CHAPTER XI 



PAGE 



Diseases of the Optic Nerve 133 



Papillitis, 133 — Retrobulbar Neuritis, 134 — Toxic Ambly- 

 opia, 134 — Atrophy of the Optic Nerve, 135. 



CHAPTER XII 



Diseases of the Lens i37 



Cataract, 137^ — Luxation of the Lens, 142 — Lenticonus, 143. 



CHAPTER XIII 



Operations for Cataract i44 



Discission, 144 — Extraction, 145 — Iridectomy, 148 — Dress- 

 ing, 151. 



CHAPTER XIV 

 Recurrent Ophthalmia i5S 



CHAPTER XV 



Glaucoma 158 



CHAPTER XVI 



Injuries of the Globe 162 



Contusions, 162— Punctures, 163— Lacerations, 164— Com- 

 plications, 165— Treatment of Injuries of the Globe, 166— 

 Simple Abrasions of the Cornea, 166— Perforating Wounds of 

 the Cornea, 166— Injuries of the Globe, with Foreign Bodies 

 Remaining in the Eye, 168— Enucleation of the Globe, 170— 

 Prolapse of the Eyeball, 172. 



CHAPTER XVII 



Fracture of the Orbit 1 74 



Treatment, 174. 



CHAPTER XVIII 



Parasites of the Eye 176 



Parasites of the Eyehds, 176— Parasites Found Within the 

 Eyeball, 178. 



CHAPTER XIX 



The Principles of Vision iSi 



Refraction, 181— Spheric and Cylindric Lenses, 182— Acuity 

 of Vision, 187— Accommodation, 188 — Fields, 192 — Scotoma, 

 194. 



