The format of the book has not changed but some of the chapters have been expanded. For example, there is now a section dealing with the eye complications of acquired immune deficiency syndrome (AIDS). This problem barely existed at the time of the first edition. Cataract surgery has changed a great deal in this short time and is becoming one of the commonest major surgical procedures to be performed in a hospital. The management of glaucoma has also changed with the introduction of a range of new medications. Our aim has been to keep the original problem-oriented layout and to keep it as a book to read.
