You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The most common variety of scleritis is and explain in detail?
SCLERITIS Scleritis refers to a chronic inflammation of the sclera proper. Classification : It can be classified as follows: I. Anterior scleritis (98%) 1. Non-necrotizing scleritis (85%) (a) Diffuse (b) Nodular 2. Necrotizing scleritis (13%) (a) with inflammation (b) without inflammation (scleromalacia perforans) II. Posterior scleritis (2%) Clinical features : Symptoms: Patients complain of moderate to severe pain which is deep and boring in character and often wakes the patient early in the morning . Ocular pain radiates to the jaw and temple. It is associated with localised or diffuse redness, mild to severe photophobia and lacrimation. Occasionally there occurs diminution of vision. Signs: The salient features of different clinical types of scleritis are as follows: 1. Non-necrotizing anterior diffuse scleritis: It is the commonest variety, characterised by widespread inflammation involving a quadrant or more of the anterior sclera. The involved area is raised and salmon pink to purple in colour. 2. Non-necrotizing anterior nodular scleritis: It is characterised by one or two hard, purplish elevated scleral nodules, usually situated near the limbus. Sometimes, the nodules are arranged in a ring around the limbus (annular scleritis). Ref:- A K KHURANA; pg num:-129,130