The contentions embodied in this thesis are:
An ample, properly executed preliminary capsulotomy has, in mature cataracts, many advantages over immediate capsulotomy or capsulectomy.
In morgagnian cataract it enables one to make what is difficult otherwise, namely, an efficient opening in the capsule.
The extraction of the clear lens in high myopia is feasible by this method, and
It will render immature cataract operable after a six-hour interval, leading up to a clean extraction.
These contentions are submitted in the foregoing order that their correlated value may be presented and that the subject-title shall receive final and full consideration. It is generally stated by most writers that the lens-capsule is a highly elastic membrane which, on section, curls outward. It is very doubtful if this statement be true; not as to its curling outward, which is thought to be due to another cause, but as to its elasticity. If it