Primary Conjunctiva Tuberculosis and Review of Literature.

The causes of chronic conjunctivitis are exhaustive, infection being the commonest. Primary tuberculosis(TB) involving the conjunctiva is rare. History of chronicity, worsening symptoms with steroids and clinical signs of subconjunctiva nodules could point towards the diagnosis of primary conjunctiva tuberculosis especially in endemic countries.

Corneal Hysteresis Is Reduced in Obstructive Sleep Apnea Syndrome.

Significance: To our knowledge, this is the first time a study looking at the association between corneal hysteresis (CH) and obstructive sleep apnea syndrome (OSAS) severity has been reported. We provide evidence that CH is lower in OSAS and speculate on the possible causes.

Purpose: The present study aims to look at the association between CH and severity of OSAS, and whether CH could be another link between OSAS and the development of glaucoma.

Ocular perfusion pressure and ophthalmic artery flow in patients with normal tension glaucoma.

Background: Vascular insufficiency has been reported to be a cause of normal tension glaucoma (NTG). The aim of this study was to compare ocular perfusion pressure (OPP) and ophthalmic artery flow (OAF) between patients with NTG and those without glaucoma.

Methods: We considered one eye each from 31 NTG and 15 non-glaucoma control patients.

Matrix metalloproteinases and tissue inhibitors of metalloproteinases in the aqueous humour of patients with primary angle closure glaucoma - a quantitative study.

Background: Altered levels of specific matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) in the aqueous humour of primary open-angle glaucoma (POAG) eyes have been described. In this study, levels of specific MMPs and TIMPs in the aqueous humour of primary angle-closure glaucoma (PACG) eyes were measured and compared with those of POAG as well as non-glaucoma control eyes.

Methods: Aqueous humour from 16 PACG, 28 POAG and 27 control eyes were sampled during intraocular surgery.

Low nocturnal ocular perfusion pressure as a risk factor for normal tension glaucoma.

Objectives: In the absence of raised intraocular pressure (IOP), haemodynamic parameters have been implicated in the development of normal tension glaucoma (NTG). The purpose of this study is to compare 24-hour IOP and haemodynamic parameters in NTG patients and non-glaucoma patients.

Methods: This is a cross sectional study involving 72 NTG patients from University of Malaya Medical Centre eye clinic glaucoma registry.