What does Seidel sign indicate?
Seidel test is positive when the fluorescein dilutes in the aqueous humor and causes it to fluoresce bright green and stream down the eye with gravity.
How do I know my Seidel sign?
Procedure. A fluorescein strip containing 10% fluorescein is applied topically to the affected area, without applying pressure on the eye due to the risk of tissue extrusion. The fluorescein is examined with a cobalt blue filter. At this point, the fluorescein appears green in color.
How do you treat a Seidel sign?
- A full thickness penetration (leaking wound) should be treated as an emergency and requires prompt surgical repair.
- A sealed corneal laceration is treated by applying a bandage contact lens or pressure patching, along with antibiotic drops.
What is a peaked pupil?
A repeated prolapse of the iris from the main wound during surgery, may cause such an occurance. To address this, a small amount of intracameral Miochol at the end of the surgery constricts the pupil and brings it to its physiological size.
What is cobalt blue light?
Cobalt blue light provides a suitable means of exciting sodium fluorescein (orange dye) for examination of ocular surface integrity. Fluorescein mostly absorbs light of wavelengths between 485 and 500 nm, this then causes it to shines and emits a greenish light. Fluorescein has an important role in ophthalmic practice.
What is eccentric pupil?
Corectopia is an eccentric location of the pupil. In the photo, the displacement followed an intracapsular cataract extraction. The peripheral iridectomy at 12:30 o’clock did not prevent the occurrence of this infrequent but well-recognized complication of cataract surgery.
What does a teardrop shaped pupil mean?
A teardrop pupil is a sign of an open globe injury and the eye should be shielded without any pressure on the eye itself to prevent further injury during transport. Discussion: This patient has an open globe injury, defined as a traumatic violation of the external layer of the eye (sclera and/or cornea).
What is scleral smudge?
Midday fogging is when scleral lenses fog up after a few hours of wear. The most likely causes appear to be an accumulation of debris from the tears between the lens and the cornea or an inflammatory reaction of the eye or eyelids to the contact lenses.
What is fluorescence in eyes?
Overview. The fluorescent eye test is useful in determining if there is a scratch or other problem with the surface of the cornea. It can also be used to detect foreign bodies on the surface of the eye, and determine if there is an injury to the eye or eye infection.
What is fluorescein eye stain?
Fluorescein is a green-tinted dye that fluoresces (glows) under blue light. A small amount of this dye applied to the surface of the eye (on top of the cornea) can be used to detect corneal injuries.
What is Seidel’s sign?
Seidel’s sign (also called Seidel’s scotoma) is a sickle-shaped scotoma that is a superior or inferior extension of the blind spot. It occurs in some patients with glaucoma. In 1914, German ophthalmologist Erich Seidel first described the glaucomatous visual field defect, Seidel’s scotoma.
What is a Seidel test?
Definition. The test used to reveal ocular leaks from the cornea, sclera or conjunctiva following injury or surgery and sometimes disease is called Seidel test.
What is Seidel sign glaucoma?
Seidel sign. Jump to navigation Jump to search. Seidel’s sign (also called Seidel’s scotoma) is a sickle-shaped scotoma that is a superior or inferior extension of the blind spot. It occurs in some patients with glaucoma.
What is Seidel Erich?
Seidel, Erich, German ophthalmologist, 1882-1946. Seidel scotoma – a form of Bjerrum scotoma. Seidel sign – a sickle-shaped scotoma appearing as an upward or downward extension of the blind spot.