What is a Mittendorf dot?

The Mittendorf dot, discovered by William Frederick Mitttendorf, is a congenital vascular abnormality which occurs due to an involutional defect of the anterior terminus of anterior hyaloid artery. It manifests as a focal opacity in the infero-nasal aspect of the posterior lens capsule.

Which of the following is true regarding Mittendorf dot?

Which of the following is true regarding Mittendorf dot? Mittendorf dot is a remnant of the anterior end of hyaloid artery. It is attached to the posterior lens capsule. It is associated with posterior polar cataract.

What does the hyaloid artery become?

The hyaloid artery is a branch of the ophthalmic artery, which is itself a branch of the internal carotid artery. It is contained within the optic stalk of the eye and extends from the optic disc through the vitreous humor to the lens….

What is hyaloid artery?

The hyaloid artery is a branch of the ophthalmic artery, which is a branch of internal carotid artery. It is present in the optic canal and extends from the optic disc to the crystalline lens via the vitreous humour.

What are the 3 types of cataracts?

There are three main types of cataract: Nuclear Sclerotic, Cortical and Posterior Subcapsular. The types of cataracts are classified based on where and how they develop in the eye. Nuclear Sclerotic Cataract: A nuclear sclerotic cataract refers to the hardening of the nucleus, the center, of the lens of the eye.

How rare is PHPV?

A study on childhood blindness and visual loss in the United States showed that PHPV accounts for about 5 % of all cases of blindness. PHPV is typically found in full term infants. In majority of cases, the abnormality can be noted at birth or within the first few weeks of life.

How common is Mittendorf dot?

Persistence of the hyaloid vascular system is seen in 3% of full-term infants and 95% of premature infants. It may be present as Mittendorf’s dot located at the posterior lens capsule or as Bergmeister’s papilla located at the optic disc.

What is PPC in eye?

Posterior Polar cataracts (PPC) represent a medically and surgically unique subset of cataracts. Incidence is not well characterized though they are proportionally less common than most other forms of cataract.

What is PHPV?

PHPV, also known as persistent fetal vasculature, is a congenital anomaly of the eye that results following failure of the embryological, primary vitreous, and the hyaloid vasculature to regress. 104,105. It typically presents unilaterally without associated systemic findings in normal full-term infants.

What are cataracts caused from?

Most cataracts develop when aging or injury changes the tissue that makes up the eye’s lens. Proteins and fibers in the lens begin to break down, causing vision to become hazy or cloudy. Some inherited genetic disorders that cause other health problems can increase your risk of cataracts.

At what stage should cataracts be removed?

In most cases, you need surgery when blurry vision and other symptoms of a cataract starts to interfere with daily activities like reading or driving. There is no drug or eye drop to prevent or treat cataracts. Removing them is the only treatment.

Is PHPV hereditary?

Most cases of PHPV are sporadic, but it can be inherited as an autosomal dominant or recessive trait. Inherited PHPV also occurs in several breeds of dogs and cats. In a limited number of cases, Norrie disease and FZD4 genes are found to be mutated in unilateral and bilateral PHPV.

What is the meaning of the Mittendorf dot?

a small dot visible on the posterior aspect of the lens capsule on ophthalmologic examination that represents a remnant of the primitive hyaloid vascular system. A small spot visible on the posterior aspect of the lens capsule on ophthalmologic examination that represents a remnant of the primitive hyaloid vascular system.

What does the dot mean in the eye?

Mittendorf’s dot a congenital anomaly of the eye manifested as a small gray or white opacity just inferior and nasal to the posterior pole of the lens, representing the remains of the lenticular attachment of the hyaloid artery; it does not affect vision.

How big was the storm surge at Middendorf’s?

Middendorf’s escaped Hurricane Katrina and Rita with little damage. During Hurricane Ike, however, in 2008, the restaurant was inundated with four feet of water after a ten foot storm surge on the western shores of Lake Pontchartrain.

Who are the owners of Middendorf’s seafood restaurant?

Middendorf’s, also known as Middendorf, is a Louisiana seafood restaurant, considered a local institution. Middendorf’s was opened in 1934 during the Great Depression by a German couple named Josie and Louis Middendorf. The restaurant was passed down through two generations of the family.