Broadband access connections can use a direct connection or some form of tunneled protocol such as PPP or L2TP to connect the CPE to the Internet. The service provider must secure its own network infrastructure when providing IPv6 services. Figure 3-5 shows several broadband access provider network topologies.
The list of signs and symptoms mentioned in various sources for Coloboma of iris includes the 7 symptoms listed below: Hole in the iris. Unusual shaped pupil. Blurred vision. Impaired vision. Impaired central vision. Asymptomatic. Light sensitivity.
A cleft or gap in some part of the eye, such as the iris, lens, or retina, that is caused by a defect in the development of the eyeball. How much coloboma affects a person's vision depends on the size and location of the cleft and on whether it occurs in one or both eyes.artial or complete absence of the iris of the eye. This rare condition, usually present at birth, results in impaired vision and sensitivity to light. People with aniridia are also at high risk for certain other eye conditions, such as glaucoma, nystagmus, and cataracts.