Se la visione torbida da cataratta è fare le vostre attività quotidiane più difficile, probabilmente è il momento di prendere in considerazione che la chirurgia della cataratta .
Why do we cry?
Scientists have been trying to answer this question for centuries.
In 1662, Danish scientist Niels Stensen discovered that tears originate in the lacrimal gland.
We have three distinct types of tears:
Keratoconus, rare, self-limiting Ectasia of the cornea with progressive thinning & steepening associated with hereditary predisposition ,onset in teenage years, progressing for ~10y,90% bilateral (2nd eye delayed ~5y) decrease in vision (myopic astig.,diplopia, distortion, …) Correction with spectacles,
Sixteen seconds a year. This is all the time clinicians generally take to measure intraocular pressure (IOP) in stable glaucoma patients using traditional tonometry, said Arthur J. Sit, SM, MD.
“It’s only a snapshot,” said Dr. Sit, at the Mayo Clinic in Rochester, Minn.
Amaurosis fugax (AF) is de ned as a transient monocular visual loss (TMVL) that lasts from seconds to minutes. Sometimes, but uncommonly, the episode may last for several hours. 1 The symptom is caused by ischemia in the retina, the choroid or the optic nerve.
2 The most common underlying mechanism
8 Kitchen Eye Safety Tips
While it’s true that good nutrition is essential for long-term eye health, there can also be a more direct connection between food and eye safety.
Make sure you know how to keep your eyes safe in the kitchen
Myelinated retinal nerve fiber layers (MRNF) occur in 0.57- 1% of the population and can occur bilaterally in 7.7% of affected patients. MRNF are grey-white well-demarcated patches with frayed borders along the retinal nerve fiber layer, obscuring underlying retinal vessels.1,2 Clinically, MRNF appear continuous with the optic nerve, but they are often discontinuous with the optic nerve head as well.1,2 Most patients with MRNF are asymptomatic; however, visual function can become affected, resulting in axial myopia, amblyopia, and strabismus in the affected eye.3,4 Though rare, familial cases of MRNF have been reported both in isolation and in combination with ocular and systemic syndromes (Table 1).5 MRNF are typically present at birth and are static lesions, but a few cases of acquired and progressive lesions in both childhood and adulthood have been described. Disappearance of MRNF have also been reported after surgery and insults to the optic nerve.
Can I Fly With This Eye?
Learn what eye conditions should keep you on the ground and which won’t interfere with air travel
The American Academy of Ophthalmology often gets questions about whether recovery from eye surgery or having a specific condition means that the patient shouldn’t fly. If you have questions about your eye health, you should talk to your own ophthalmologist. But it’s important to know that there are some times when air travel really could be a danger to your eyes.
La sindrome di Norrie (o malattia di Norrie, o displasia oculo-acustico-cerebrale), è una malattia genetica molto rara, legata al gene recessivo NDP presente sul cromosoma X, che causa cecità, sordità e ritardo mentale. Colpisce solo i maschi, mentre le femmine sono portatrici sane.
LA CLASSIFICAZIONE DELLA ROP
La localizzazione e la stadiazione della malattia sono definiti secondo l’ “International Classification of Retinopathy of Prematurity Revisited” pubblicata nel 2005 (Arch Ophthalmol 2005;123:991-999).