Glaucoma is a progressive eye disease that damages the optic nerve, leading to vision loss if left untreated. Early detection is crucial because glaucoma often has no noticeable symptoms in its early stages, and vision loss can be irreversible. Regular screenings help identify glaucoma at its earliest stages, allowing for timely intervention and management.

Intraocular pressure refers to the pressure inside the eye. Elevated IOP is a significant risk factor for glaucoma. During an IOP checkup, a tonometer is used to measure the pressure, helping assess the risk of developing glaucoma and monitor the effectiveness of treatment in managing the disease.

The frequency of screenings and checkups depends on various factors, including your age, family history of glaucoma, and other risk factors. Generally, individuals without any known risk factors should undergo screenings every 2 to 4 years starting at age 40. However, it's best to consult with an ophthalmologist who can determine the appropriate frequency based on your specific situation.

Glaucoma screenings are typically painless and involve a comprehensive eye examination, including visual acuity testing, optic nerve assessment, and visual field evaluation. IOP measurements involve the use of a tonometer, which may cause a slight tingling sensation or brief discomfort, but it is generally well-tolerated by most patients.

While these screenings cannot prevent glaucoma from developing, they are crucial in detecting the disease at its early stages. Early detection allows for prompt treatment, helping to slow down disease progression, preserve vision, and minimize the risk of complications.

Glaucoma screenings and IOP checkups primarily focus on detecting glaucoma and assessing intraocular pressure. However, during the comprehensive eye examination, other eye conditions or abnormalities may also be identified, leading to appropriate referrals or further investigations if necessary.

The duration of a glaucoma screening and IOP checkup may vary depending on the specific tests and evaluations required. Generally, the process can take around 30 minutes to an hour. It's advisable to allocate sufficient time for the examination and discuss any concerns or questions with your ophthalmologist.