| Anatomy/Physiology Topic | Clinical Application | |--------------------------|----------------------| | Open-angle glaucoma | Impaired outflow through trabecular meshwork → raised IOP → optic disc cupping | | Central retinal artery occlusion | Sudden painless monocular blindness; cherry-red spot (because choroid supplies fovea) | | Horner’s syndrome | Sympathetic chain lesion → ptosis, miosis, anhidrosis | | Argyll Robertson pupil | Light-near dissociation (usually neurosyphilis) – lesion in pretectal area | | Diabetic retinopathy | Non-proliferative: microaneurysms, hemorrhages; Proliferative: VEGF-driven neovascularization | | Cataract | Lens opacity due to UV, diabetes, aging – disrupts crystallin organization |
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Dr. A.K. Khurana is a globally recognized author in the field of eye care. His book, currently in its 6th or 7th edition (depending on the publisher), is designed to bridge the gap between massive encyclopedic reference books and short, incomplete handbooks.
Why is the PDF version popular? The digital (PDF) version of A.K. Khurana is highly sought after because it allows students to quickly search for keywords, access the text on tablets during rounds, and print specific diagrams for notes. and print specific diagrams for notes.
The showstopper. In the AK Khurana PDF, the retina is analyzed histologically (10 layers) and physiologically (phototransduction).
Khurana meticulously describes the seven bones that form the orbit: Frontal, Maxilla, Zygomatic, Sphenoid, Ethmoid, Lacrimal, and Palatine. anatomy and physiology of eye ak khurana pdf
A highlight of Khurana’s teaching is the "Rings of Zinn" and the structures passing through the optic canal (Optic nerve and Ophthalmic artery). The PDF often contains a mnemonic box summarizing cranial nerves passing through the superior orbital fissure (CN III, IV, V1, VI).