Test: Glaucoma - 4 - NEET PG MCQ

Corneal perforation is closed off by the iris (leucoma adherens), and the anterior synechiae that develop as a result can lead to reduced aqueous drainage.

Steroid-induced glaucoma refers to a type of open-angle glaucoma that is triggered by the use of steroids.

Laser iridotomy is effective in addressing a pupillary blockage.

The selection of perimetry is based on automated techniques.

Argon functions as a photocoagulative laser utilised in the retina. Nd-YAG serves as a cutting laser.

The patient undergoes examination using a slit lamp in conjunction with a gonioscope.

It should primarily be a phase of ongoing instability, representing the second stage of angle-closure glaucoma.

Recent studies have indicated that individuals using long-term topical timolol for glaucoma treatment exhibit a significantly greater occurrence of NLD obstruction. Pilocarpine has the potential to result in punctal occlusion. Additionally, another medication that is recognised for causing punctal occlusion is physostigmine.

This is a bimicroscopic analysis of the anterior chamber angle; therefore, the pupil must be constricted.

Laser trabeculoplasty is performed for open-angle glaucoma in individuals who do not respond to medical therapy.

The patient's history indicates a tendency towards angle-closure glaucoma; therefore, the use of mydriatics should be avoided.

Optic nerve fibres represent the axons of ganglion cells, while glaucoma refers to the harm inflicted upon these nerve fibres.

Pilocarpine enhances the trabecular outflow. Latanoprost boosts the uveoscleral outflow. Betaxolol reduces the aqueous formation. Brimonidine operates through dual mechanisms; it diminishes formation while simultaneously increasing the uveoscleral outflow.

The Ex-Press implant is a biocompatible device measuring nearly 3 mm in length and having an external diameter of about 400 microns. It is a non-valved, MRI-compatible, stainless steel device featuring a lumen of 50 microns.

• One end has an external disc.
• The opposite end has a spur-like extension to prevent extrusion.

This implant is positioned under the scleral flap rather than beneath the conjunctiva, successfully eliminating complications such as extrusion and hypotony.

Glaucomatocyclitic crisis, also known as Posner-Schlossman Syndrome (PSS), is an uncommon condition characterised by:

• Recurrent episodes of elevated intraocular pressure in one eye
• Minimal signs of inflammation in the anterior segment

The treatment involves:

• Controlling the increased pressure using antiglaucoma medications
• Addressing any uveitis that may be present

Latanoprost induces pigmentation in the iris, resulting in a variation of iris colour.

Pheylephrine will cause the contraction of the dilator pupillae, which are arranged radially, much like pilocarpine affects the sphincter pupillae, which are circular in structure.