Roennes central nasal step: It is created when two arcuate scotomas run in different arcs to form a right angled defect. This is also seen in advanced stages of glaucoma. Peripheral field defects: Peripheral field defects may occur in early or late stages of glaucoma. Roennes peripheral nasal steps occur due to contraction of peripheral isopter. Tubular vision:  Since macular fibers are the most resistant to glaucomatous damage, the central vision remains unaffected until end stages of glaucoma. Tubular vision or Tunnel vision is the loss of peripheral vision with retention of central vision, resulting in a constricted circular tunnel-like field of vision. It is seen in the end stages of glaucoma. Retinitis pigmentosa is another disease that causes tubular vision. Temporal island of vision: It is also seen in end stages of glaucoma. The temporal islands lie outside of the central 24 to 30° visual field, so it may not be visible with standard central field measurements done in glaucoma. Screening
The United States Preventive Services Task Force stated, as of 2013, that there was insufficient evidence to recommend for or against screening for glaucoma. Therefore, there is no national screening program in the US. Screening, however, is recommended starting at age 40 by the American Academy of Ophthalmology.There is a glaucoma screening program in the UK. Those at risk are advised to have a dilated eye examination at least once a year.
The timing and nature of therapeutic activities are adjusted according to age and tissue integrity of the repair. Management is more complex in those who have had multiple tears. Prognosis
While people with rotator cuff tears may not have any noticeable symptoms, studies have shown that, those with age related tears,  over time 40% will have enlargement of the tear over a five-year period. Of those whose tears enlarge, 20% have no symptoms while 80% eventually develop symptoms.Most usually regain function and experience less pain following surgery. For some, however, the joint continues to hurt. Weakness and a limited range of motion also may persist. Those who report such symptoms frequently are diagnosed with failed rotator cuff syndrome. There is no irrefutable evidence that rotator cuff surgery benefits more than non-surgical management and a percentage of individuals never regain full range of motion after surgery.Arthroscopic procedures produce "satisfactory results" more than 90 percent of the time. However, 6-8 percent of patients have "incompetent" rotator cuffs because their repaired tendons either fail to heal or develop additional tears. In some cases, persistent rotator cuff type pain after surgery can be due to disease elsewhere. For example, cervical spine disease and can involve neck pain radiating into the shoulder. Suprascapular neuropathy, shoulder impingement, superior labral anterior-posterior (SLAP) tears and arthritis can all mimic rotator cuff disease and cause persistent pain that does not respond to rotator cuff surgery.