Anterior chamber angle evaluation by ultrasound biomicroscopy and gonioscopy in primary angle closure disease.

AIMS AND OBJECTIVES OF THE STUDY To correlate the angle width measurements by Ultrasound biomicroscopy with gonioscopy. To evaluate the changes in the anterior segment morphology in terms of biometric parameters following laser iridotomy. To find out the demographic and ocular risk factors of angle closure glaucoma. Individuals aged above 40 years, females and diabetics are at more risk for the angle closure disease . Ocular risk factors for angle closure are hyperopia, short axial length and shallow anterior chamber depth. Gonioscopy is reliable and equally effective in grading the anterior chamber angle as compared to quantitative angle estimation by UBM. Access to quantitative anterior chamber angle evaluation is complimentary. Laser peripheral iridotomy proves to be a boon for the eyes with angle closure disease in its early stages. Since visual loss resulting from PACG is potentially preventable, careful surveillance for risk factors of angle closure, widespread use of gonioscopy to identify occludable angles and peripheral iridotomy performed at an early stage can reduce the morbidity resulting from PACG. Increasing the awareness among the rural population, training the health care professionals in the peripheries to do the simple technique of gonioscopy and thereby aiding in early diagnosis and intervention of Primary angle closure disease, irreversible vision loss due to PACG can be reduced to a large extent. FUTURE SCOPE OF THE STUDY By analysing the lens thickness and its position in relation to ciliary body, the role of lens morphology in Primary angle closure disease can be studied. By following up the PACS subjects with LPI over a longer period, the role of LPI in the natural course of the disease and its contribution to the progression of cataract can be assessed.