Presbyopia or eyestrain is a refractive defect that usually appears after the age of 40. There is a loss of elasticity of the ocular structures that causes the inability to focus at very close distances to the eyes such as the mobile phone or any document that is presented at a distance of about 40…

Strabismus is a visual deficiency that causes the loss of alignment of both visual axes when focusing on a particular object. CAUSES Strabismus can appear at birth or in adulthood or even in children. Strabismus is caused by the involvement of the extraocular muscles due to: ⦁ The main cause in children is when there…

Lazy eye or amblyopia is the abnormal development of one eye during a child's primary school years causing low vision in that eye. Usually if it is treated at an early age (before the age of 7 or even up to the age of 12) there is a good chance to restore the amblyopic eye.…

Diplopia is an ocular defect where the person sees things in duplicate. This can be either permanently throughout the day or only at specific times of the same day or different days. It is quite a serious problem because when it occurs suddenly, it is necessary to have a medical evaluation and to know the…