What is the difference between lacquer cracks and Angioid streaks?
Angioid streaks usually emanate from the disc, tend to be straighter, and are reddish in color. Choroidal ruptures, on the other hand, share with lacquer cracks similar distribution, color, and fluorescein angiographic appearance but are caused by a noticeable traumatic event.
What is a myopic crescent?
A myopic crescent is a moon-shaped feature that can develop at the temporal (lateral) border of disc (it rarely occurs at the nasal border) of myopic eyes. It is primarily caused by atrophic changes that are genetically determined, with a minor contribution from stretching due to elongation of the eyeball.
What is tessellated fundus?
Tessellated fundus is defined as the condition in which the choroidal vessels can be seen through the retina owing to reduced pigmentation or hypoplasia of the retinal pigment epithelium (RPE) [13.
What are lacquer cracks in the eye?
Lacquer cracks are breaks in Bruch’s membrane frequently observed in the posterior pole of a highly myopic eye. These distinctive fundus changes are actually quite common in axial myopia and may augur hemorrhage into the macular area, either from mechanical causes or from choroidal neovascularization.
Can angioid streaks cause blindness?
Because eyes with angioid streaks will always be at risk for CNV due to the damage to Bruch’s membrane, they should have eye exams at regular intervals. CNV in the peripapillary and macular regions can occur in a small percentage of patients with angioid streaks, leading to severe vision loss.
Will myopia eventually go blind?
Myopia, particularly high myopia, not only impacts your vision in the short term, but it can eventually lead to blindness. Studies across the world have shown that myopia can increase your risk of blindness through disorders like macular degeneration, retinal detachment, glaucoma, and cataracts.
What is lacquer cracks?
How does a normal fundus look like?
Normal Fundus. The disk has sharp margins and is normal in color, with a small central cup. Arterioles and venules have normal color, sheen, and course. Background is in normal color. The macula is enclosed by arching temporal vessels.
How do you get a retinal tear?
Retinal tears are relatively common eye problems. They usually occur when your vitreous changes texture with age and pulls on your retina, tearing a small piece of it away from the back of your eye. Your risk of a retinal tear or detachment increases with age.
Where are lacquer cracks found in the retina?
Purpose: Lacquer cracks are found in the posterior fundus of 4.3% of highly myopic eyes. They represent healed and mechanical breaks of the retinal pigment epithelium, Bruch’s membrane, and choriocapillaris complex.
Are there lacquer cracks in the posterior pole of myopic eyes?
Lacquer cracks are uncommon findings in the posterior pole of highly myopic eyes. Herein, we report a case of a young man with an unusual localization of the lesion in the midperiphery of the eye. An 18-year-old man had a history of progressive myopia since childhood. No history of ocular trauma was obtained.
How many eyes are affected by lacquer cracks?
Results: The lacquer cracks progressed in 37 eyes (56.1%). Of these 37 eyes, the number of lacquer cracks increased in 14 eyes and turned into other myopic fundus changes in 25 eyes. These changes included patchy atrophy, diffuse atrophy, and choroidal hemorrhage with neovascular membrane (Fuchs’ spot).
What causes lacquer cracks in the posterior pole?
Lacquer cracks are uncommon findings in the posterior pole of highly myopic eyes with a prevalence ranging from 4.3% to 9.2%. They appear to be caused by stretching of the coats of the eyeball with increasing axial myopia.