Spectral Domain Optical Coherence Tomography Analysis for Glaucoma

Inclusion Criteria

• •IOP higher than 21 mmHg before treatment on three different visits,
• •Best corrected VA of 20/25 or better with a spherical equivalent within ±5 D and a cylinder correction within +3 D;
• •An open angle confirmed by gonioscopy.
• •Glaucomatous optic disc damage defined as by the presence of glaucomatous optic neuropathy like rim thinning (diffuse or local), cupping, notching, and a cup/disc ratio \>0.2 with asymmetry.
• •NTG group were included if;
• •They had the same optic disc and visual field criteria as for the POAG patients with the exception that their IOP was as ≤21 mmHg on three separate visits without any glaucomatous treatment.
• •The control group
• •Who had no ocular disease
• •Who had not undergone ocular surgery or laser procedures.
• •With a normal anterior segment, open angles, and normal posterior segment findings also normal optic nerve head appearance in their ophthalmic examination.
• •The IOP measurements were lower than 21 mmHg, and full-threshold 30-2 HFA were also within normal limits in the control group.