Glaucoma Surgery: Online Quizzes and Learning Resources

Question 1

Which of the following is the most prevalent type of glaucoma worldwide?

Accepted Answer

Open-angle glaucoma

Answer

Angle-closure glaucoma

Answer

Congenital glaucoma

Answer

Secondary glaucoma

Question 2

What is the primary therapeutic goal of glaucoma surgery?

Accepted Answer

To decrease intraocular pressure

Answer

To alleviate blockage in the trabecular meshwork

Answer

To create an alternative pathway for aqueous humor outflow

Answer

To halt further vision loss

Question 3

Which glaucoma drainage device is most commonly employed in the United Kingdom?

Accepted Answer

Ahmed glaucoma valve

Answer

Baerveldt glaucoma implant

Answer

Molteno implant

Answer

Krupin valve

Question 4

Describe the mechanism of action of a tube shunt in glaucoma management.

Accepted Answer

Facilitating direct drainage of aqueous humor into the subconjunctival space

Answer

Reducing aqueous humor production

Answer

Increasing outflow resistance in the trabecular meshwork

Answer

Enhancing uveoscleral outflow

Question 5

Which laser procedure is commonly used in the treatment of open-angle glaucoma?

Accepted Answer

Selective laser trabeculoplasty (SLT)

Answer

Laser peripheral iridotomy (LPI)

Answer

Argon laser trabeculoplasty (ALT)

Answer

Endoscopic cyclophotocoagulation (ECP)

Question 6

Which of the following is a primary indication for glaucoma surgery?

Accepted Answer

Failure to achieve target intraocular pressure despite maximal medical therapy

Answer

Advanced optic nerve damage with irreversible visual field loss

Answer

Pain or inflammation associated with glaucoma

Answer

Cosmesis

Question 7

Which of the following surgical techniques is primarily used to manage angle-closure glaucoma?

Accepted Answer

Laser peripheral iridotomy

Answer

Trabeculectomy

Answer

Glaucoma drainage implant surgery

Answer

Scleral flap

Question 8

The primary consideration when selecting a glaucoma surgery technique is:

Accepted Answer

The type and severity of glaucoma

Answer

The patient's age and overall health

Answer

The surgeon's preference and experience

Answer

The cost and availability of the procedure

Question 9

Which type of anesthesia is generally preferred for trabeculectomy?

Accepted Answer

Local anesthesia with sedation

Answer

General anesthesia

Answer

Topical anesthesia

Answer

Regional anesthesia

Question 10

Which type of glaucoma is characterized by a sudden and severe increase in IOP, often accompanied by pain?

Accepted Answer

Primary angle-closure glaucoma

Answer

Primary open-angle glaucoma

Answer

Secondary glaucoma

Answer

Congenital glaucoma

Question 11

Which of the following is the most prevalent type of glaucoma?

Accepted Answer

Primary open-angle glaucoma

Answer

Primary angle-closure glaucoma

Answer

Secondary glaucoma

Answer

Congenital glaucoma

Question 12

Which of the following is NOT a recognized indication for glaucoma surgery?

Accepted Answer

Congenital cataracts

Answer

Uncontrolled intraocular pressure (IOP)

Answer

Progressive optic nerve damage

Answer

Narrowing of the visual field

Question 13

Which of the following most accurately describes the primary mechanism of action of trabeculectomy?

Accepted Answer

Increasing aqueous humor outflow through a scleral fistula

Answer

Reducing aqueous humor production

Answer

Improving uveoscleral outflow

Answer

Enlarging the anterior chamber angle

Question 14

Which of the following is a potential early complication of glaucoma surgery that requires prompt recognition and management?

Accepted Answer

Wound leak

Answer

Hyphema

Answer

Cataract formation

Answer

Endophthalmitis

Question 15

Which of the following is a non-incisional procedure for lowering IOP that utilizes laser energy?

Accepted Answer

Laser trabeculoplasty

Answer

Peripheral iridotomy

Answer

Stent implantation

Answer

Cyclocryotherapy

Question 16

What is the primary goal of medical therapy for glaucoma?

Accepted Answer

To prevent further vision loss

Answer

To reverse optic nerve damage

Answer

To alleviate pain

Answer

To improve visual acuity

Question 17

Which of the following structures is NOT involved in the physiological pathway of aqueous humor outflow?

Accepted Answer

Ciliary body

Answer

Trabecular meshwork

Answer

Schlemm's canal

Answer

Uveal trabecular meshwork

Question 18

Which method of measuring IOP is considered the most accurate and reliable?

Accepted Answer

Goldmann applanation tonometry

Answer

Schiotz tonometry

Answer

Indentation tonometry

Answer

Pneumatic tonometry

Question 19

Which of the following is the primary indication for glaucoma surgery?

Accepted Answer

Uncontrolled intraocular pressure despite maximal medical therapy

Answer

Neovascular glaucoma

Answer

Acute primary angle-closure glaucoma

Question 20

Which surgical procedure is the first-line treatment for open-angle glaucoma with a patent iridocorneal angle?

Accepted Answer

Trabeculectomy

Answer

Valve implant surgery

Answer

Cyclodestructive procedure

Answer

Laser trabeculoplasty

Question 21

Which of the following is a well-established risk factor for failure of trabeculectomy?

Accepted Answer

Previous intraocular surgery

Answer

Low preoperative intraocular pressure

Answer

Young age

Answer

Absence of conjunctival scarring

Question 22

Among the complications of glaucoma surgery, which one poses the most significant threat to vision?

Accepted Answer

Loss of vision

Answer

Choroidal effusion

Answer

Infection

Answer

Hyphema

Question 23

Which of the following is a type of glaucoma drainage device implant?

Accepted Answer

Ahmed glaucoma valve

Answer

Trabectome

Answer

Laser iridotomy

Answer

Endoscopic cyclophotocoagulation

Question 24

What is the primary mechanism of action of laser trabeculoplasty in treating glaucoma?

Accepted Answer

Thermal shrinkage of the trabecular meshwork

Answer

Disruption of the blood-aqueous barrier

Answer

Formation of a filtration bleb

Answer

Inhibition of aqueous humor production

Question 25

Which of the following conditions is considered a contraindication to laser trabeculoplasty?

Accepted Answer

Angle-closure glaucoma

Answer

Pigmentary glaucoma

Answer

Pseudoexfoliative glaucoma

Answer

Open-angle glaucoma

Question 26

In the context of glaucoma, what is the significance of the optic nerve head?

Accepted Answer

Site of axonal damage and visual field loss

Answer

Site of Schlemm's canal

Answer

Site of trabecular meshwork

Answer

Site of aqueous humor production