Ophthalmology: Theory and PracticeAbout This Hardback Ophthalmology is a field of medicine and surgery that is concerned with the diagnosis and treatment of eye disorders. The eye and the surrounding structures may be affected by disease, disorder or age related changes. Many of the physiologic and anatomic processes of the eye follow a gradual decline with age. The quality of vision worsens, pupil size reduces and there is a gradual loss of focusing ability. Further, aging also leads