G.R. No. 84846 ; August 5, 1991
JESUS D. AGUJA, petitioner, vs. GOVERNMENT SERVICE INSURANCE SYSTEM, ET AL., respondents.

FACTS

The petitioner, Jesus D. Aguja, worked as a janitor. In April 1979, while cleaning an office toilet, a bottle of muriatic acid fell and splashed into his right eye, causing gradual vision loss culminating in blindness. His left eye also sustained injury, developing pterygium. Despite this, he continued working until his retirement in February 1982. The GSIS initially granted him temporary total disability benefits and later permanent partial disability benefits for 25 months for the loss of his right eye.
Subsequently, Aguja claimed additional benefits for permanent total disability, asserting his left eye was also gradually losing vision. The GSIS and the Employees’ Compensation Commission (ECC) denied this, stating he had received the maximum for permanent partial disability and that his left eye’s condition, as earlier assessed, did not meet the criteria for total disability. The Supreme Court initially found the petition premature but later revived it, directing Aguja to secure a current medical certificate on his left eye’s condition.

ISSUE

Whether the petitioner is entitled to additional compensation benefits for permanent total disability due to the gradual deterioration of his left eye following the work-related accident.

RULING

The petition is granted. The Court ruled that Aguja is entitled to a conversion of his disability status from permanent partial to permanent total. The legal logic is anchored on the principle that all natural medical consequences flowing from a primary work-related injury are compensable. The medical certificate obtained pursuant to the Court’s order revealed that Aguja’s left eye suffered from conditions like immature cataract and pterygium, traceable to the original chemical burn from the 1979 accident. There was no evidence of any independent, supervening cause for this deterioration.
The Court emphasized that disability can emerge and worsen over a period from the same causative injury. The aggravation affecting his left eye, combined with the pre-existing blindness in his right eye, rendered him incapable of performing any gainful work for which he is trained or suited. Permanent total disability, under jurisprudence, refers not to absolute helplessness but to the disablement from earning wages in the same kind of work or any work commensurate with one’s abilities and training. Denying benefits under these circumstances would contravene the compassionate spirit of the labor laws. The GSIS is ordered to pay the difference between the benefits already received for permanent partial disability and those due for permanent total disability.