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 Field defect in open angle glaucoma is best detected by? and explain in detail?
Diagnosis of glaucoma field defect is best done by Humphrey field perimeter(Gold standard). EARLIEST VISUAL FEILD DEFECT- PARA CENTRAL SCOTOMA Visual feild is defined as area if space visible to human eye without moving the eye fro central target. Rule of thumb:Earliest visual field defect in glaucoma always begin from close to center i.e Paracentral > Bjerrum > Generalized constriction. Extra edge: In Glaucoma, Temporal visual field is the last visual field to be affected.