Beside the CCT and formulas for IOP correction we should always consider the full ophthalmologic examination including visual fields, optic nerve analysis and risk factors consideration as well.

As a rule of thumb I use an algorithm that implies a variation of 1 mmHG for 30 micron of thickness variation.

What about anterior chamber angle morphology?

I agree with Pierpaolo that we should always consider the full ophthalmic picture.

In Mainz we specialize in glaucoma and we don't use normograms for correction of IOP anymore. These normograms are not totally reliable. It's better to write down the patient's corneal thickness and then to decide about the target pressure of this individual (measured with regular Goldmann applanation tonometry without any correction).

Thanks Jose the information will be extremely useful to decide whether to use OCT for routine anterior segment imaging,

We performe cct neasurement using OCT Anterior segment and we notice a good agreement with ulatrasound pachymetry

I agree with Jose. Though my glaucoma colleagues uses anterior segment OCT for measuring CCT and assessing angle, but I don't feel anterior segment OCT is a good idea to assess angle. Gonioscopy is best for that. For post YAG PI patients , PI opening can be assessed with OCT. But based on OCT scan I think patient should not be labelled angle closure type .

Anterior and Posterior Segment OCT: Current Technology and Future Applications

Ashok Garg

9789350909782 - 1/e - 314 pps - 6.75" X 9.5" - Hardback

Includes Interactive DVD-ROM

2014

The book features valuable information on OCT put together by various international experts in this field based on their clinical experience and covers all current and futuristic applications of OCT in ophthalmology. This book has been organized into 31 chapters and covers both anterior and posterior segments indication of OCT including cataract and refractive surgery, phakic lens, glaucoma, oculoplasty, corneal conditions, keratoplasty, neuro-ophthalmology, vitreomacular interface diseases and macular hole, diabetic retinopathy and various other retinal disorders.

The add-on feature of this book is the accompanying interactive video DVD showing the intraoperative use of OCT with various clinical conditions which is hardly accessible elsewhere. This comprehensive book will serve as a beckon light not only to the anterior and posterior segment surgeons, but also to cataract surgeons, retinal specialists and ophthalmologists to stimulate and as well as to enhance therapeutic decision making and monitor the outcome of treatment.

Corneal Thickness measurement is an important test for diagnostic, Therapeutic and Prognostic point of view. However, ASOCT though a very good tool for measurement of Corneal Thickness may not be required for routine use. Prof A.Panda.

The ZEISS - Cirrus HD-OCT to image anterior chamber angle and provide a wide-field view of the retinal nerve fiber layer